when i insert the value in database after auto increament the uid then it show below error plz help me anybody...

error


Cannot insert explicit value for identity column in table 'client' when IDENTITY_INSERT is set to OFF.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException: Cannot insert explicit value for identity column in table 'client' when IDENTITY_INSERT is set to OFF.

Source Error:


Line 778: }
Line 779:
Line 780: return base.ExecuteFunction<Nullable<global::System.Int32>>("sp1_client", uidParameter, usernameParameter, addressParameter, phone_noParameter, ageParameter, genderParameter, invoice_noParameter, cforParameter, trans_typeParameter, aaParameter);
Line 781: }
Line 782:

Source File: c:\Users\Administrator\Documents\Visual Studio 2010\WebSites\dealer_invoice\App_Code\Model.Designer.cs Line: 780

Stack Trace:


[SqlException (0x80131904): Cannot insert explicit value for identity column in table 'client' when IDENTITY_INSERT is set to OFF.]
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +2030802
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +5009584
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() +234
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +2275
System.Data.SqlClient.SqlDataReader.ConsumeMetaData() +33
System.Data.SqlClient.SqlDataReader.get_MetaData() +86
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +311
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +987
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +162
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +32
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +141
System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) +12
System.Data.Common.DbCommand.ExecuteReader(CommandBehavior behavior) +10
System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand, CommandBehavior behavior) +443

[EntityCommandExecutionException: An error occurred while executing the command definition. See the inner exception for details.]
System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand, CommandBehavior behavior) +479
System.Data.Objects.ObjectContext.CreateFunctionObjectResult(EntityCommand entityCommand, EntitySet entitySet, EdmType edmType, MergeOption mergeOption) +150
System.Data.Objects.ObjectContext.ExecuteFunction(String functionName, MergeOption mergeOption, ObjectParameter[] parameters) +141
System.Data.Objects.ObjectContext.ExecuteFunction(String functionName, ObjectParameter[] parameters) +11
DatabaseModel.DatabaseEntities.sp1_client(Nullable`1 uid, String username, String address, String phone_no, Nullable`1 age, String gender, String invoice_no, Nullable`1 cfor, String trans_type, Nullable`1 aa) in c:\Users\Administrator\Documents\Visual Studio 2010\WebSites\dealer_invoice\App_Code\Model.Designer.cs:780
conferm_ticket.Button1_Click(Object sender, EventArgs e) in c:\Users\Administrator\Documents\Visual Studio 2010\WebSites\dealer_invoice\conferm_ticket.aspx.cs:80
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +118
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +112
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5563

My entity Framwork code below given

//------------------------------------------------------------------------------
// <auto-generated>
//    This code was generated from a template.
//
//    Manual changes to this file may cause unexpected behavior in your application.
//    Manual changes to this file will be overwritten if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

using System;
using System.Data.Objects;
using System.Data.Objects.DataClasses;
using System.Data.EntityClient;
using System.ComponentModel;
using System.Xml.Serialization;
using System.Runtime.Serialization;

[assembly: EdmSchemaAttribute()]

namespace DatabaseModel
{
    #region Contexts
    
    /// <summary>
    /// No Metadata Documentation available.
    /// </summary>
    public partial class DatabaseEntities : ObjectContext
    {
        #region Constructors
    
        /// <summary>
        /// Initializes a new DatabaseEntities object using the connection string found in the 'DatabaseEntities' section of the application configuration file.
        /// </summary>
        public DatabaseEntities() : base("name=DatabaseEntities", "DatabaseEntities")
        {
            this.ContextOptions.LazyLoadingEnabled = true;
            OnContextCreated();
        }
    
        /// <summary>
        /// Initialize a new DatabaseEntities object.
        /// </summary>
        public DatabaseEntities(string connectionString) : base(connectionString, "DatabaseEntities")
        {
            this.ContextOptions.LazyLoadingEnabled = true;
            OnContextCreated();
        }
    
        /// <summary>
        /// Initialize a new DatabaseEntities object.
        /// </summary>
        public DatabaseEntities(EntityConnection connection) : base(connection, "DatabaseEntities")
        {
            this.ContextOptions.LazyLoadingEnabled = true;
            OnContextCreated();
        }
    
        #endregion
    
        #region Partial Methods
    
        partial void OnContextCreated();
    
        #endregion
    
        #region ObjectSet Properties
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        public ObjectSet<airline> airlines
        {
            get
            {
                if ((_airlines == null))
                {
                    _airlines = base.CreateObjectSet<airline>("airlines");
                }
                return _airlines;
            }
        }
        private ObjectSet<airline> _airlines;
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        public ObjectSet<client> clients
        {
            get
            {
                if ((_clients == null))
                {
                    _clients = base.CreateObjectSet<client>("clients");
                }
                return _clients;
            }
        }
        private ObjectSet<client> _clients;
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        public ObjectSet<invoice> invoices
        {
            get
            {
                if ((_invoices == null))
                {
                    _invoices = base.CreateObjectSet<invoice>("invoices");
                }
                return _invoices;
            }
        }
        private ObjectSet<invoice> _invoices;
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        public ObjectSet<receipt> receipts
        {
            get
            {
                if ((_receipts == null))
                {
                    _receipts = base.CreateObjectSet<receipt>("receipts");
                }
                return _receipts;
            }
        }
        private ObjectSet<receipt> _receipts;
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        public ObjectSet<ticket> tickets
        {
            get
            {
                if ((_tickets == null))
                {
                    _tickets = base.CreateObjectSet<ticket>("tickets");
                }
                return _tickets;
            }
        }
        private ObjectSet<ticket> _tickets;
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        public ObjectSet<tran> trans
        {
            get
            {
                if ((_trans == null))
                {
                    _trans = base.CreateObjectSet<tran>("trans");
                }
                return _trans;
            }
        }
        private ObjectSet<tran> _trans;

        #endregion
        #region AddTo Methods
    
        /// <summary>
        /// Deprecated Method for adding a new object to the airlines EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
        /// </summary>
        public void AddToairlines(airline airline)
        {
            base.AddObject("airlines", airline);
        }
    
        /// <summary>
        /// Deprecated Method for adding a new object to the clients EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
        /// </summary>
        public void AddToclients(client client)
        {
            base.AddObject("clients", client);
        }
    
        /// <summary>
        /// Deprecated Method for adding a new object to the invoices EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
        /// </summary>
        public void AddToinvoices(invoice invoice)
        {
            base.AddObject("invoices", invoice);
        }
    
        /// <summary>
        /// Deprecated Method for adding a new object to the receipts EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
        /// </summary>
        public void AddToreceipts(receipt receipt)
        {
            base.AddObject("receipts", receipt);
        }
    
        /// <summary>
        /// Deprecated Method for adding a new object to the tickets EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
        /// </summary>
        public void AddTotickets(ticket ticket)
        {
            base.AddObject("tickets", ticket);
        }
    
        /// <summary>
        /// Deprecated Method for adding a new object to the trans EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
        /// </summary>
        public void AddTotrans(tran tran)
        {
            base.AddObject("trans", tran);
        }

        #endregion
        #region Function Imports
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        /// <param name="aid">No Metadata Documentation available.</param>
        /// <param name="uid">No Metadata Documentation available.</param>
        /// <param name="airline_pref">No Metadata Documentation available.</param>
        /// <param name="flt_no">No Metadata Documentation available.</param>
        /// <param name="status">No Metadata Documentation available.</param>
        /// <param name="aa">No Metadata Documentation available.</param>
        public ObjectResult<Nullable<global::System.Int32>> sp1_airline(Nullable<global::System.Int32> aid, Nullable<global::System.Int32> uid, global::System.String airline_pref, global::System.String flt_no, Nullable<global::System.Int32> status, Nullable<global::System.Int32> aa)
        {
            ObjectParameter aidParameter;
            if (aid.HasValue)
            {
                aidParameter = new ObjectParameter("aid", aid);
            }
            else
            {
                aidParameter = new ObjectParameter("aid", typeof(global::System.Int32));
            }
    
            ObjectParameter uidParameter;
            if (uid.HasValue)
            {
                uidParameter = new ObjectParameter("uid", uid);
            }
            else
            {
                uidParameter = new ObjectParameter("uid", typeof(global::System.Int32));
            }
    
            ObjectParameter airline_prefParameter;
            if (airline_pref != null)
            {
                airline_prefParameter = new ObjectParameter("airline_pref", airline_pref);
            }
            else
            {
                airline_prefParameter = new ObjectParameter("airline_pref", typeof(global::System.String));
            }
    
            ObjectParameter flt_noParameter;
            if (flt_no != null)
            {
                flt_noParameter = new ObjectParameter("flt_no", flt_no);
            }
            else
            {
                flt_noParameter = new ObjectParameter("flt_no", typeof(global::System.String));
            }
    
            ObjectParameter statusParameter;
            if (status.HasValue)
            {
                statusParameter = new ObjectParameter("status", status);
            }
            else
            {
                statusParameter = new ObjectParameter("status", typeof(global::System.Int32));
            }
    
            ObjectParameter aaParameter;
            if (aa.HasValue)
            {
                aaParameter = new ObjectParameter("aa", aa);
            }
            else
            {
                aaParameter = new ObjectParameter("aa", typeof(global::System.Int32));
            }
    
            return base.ExecuteFunction<Nullable<global::System.Int32>>("sp1_airline", aidParameter, uidParameter, airline_prefParameter, flt_noParameter, statusParameter, aaParameter);
        }
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        /// <param name="i_id">No Metadata Documentation available.</param>
        /// <param name="uid">No Metadata Documentation available.</param>
        /// <param name="date">No Metadata Documentation available.</param>
        /// <param name="amount">No Metadata Documentation available.</param>
        /// <param name="aa">No Metadata Documentation available.</param>
        public ObjectResult<Nullable<global::System.Int32>> sp1_invoice(Nullable<global::System.Int32> i_id, Nullable<global::System.Int32> uid, global::System.String date, Nullable<global::System.Double> amount, Nullable<global::System.Int32> aa)
        {
            ObjectParameter i_idParameter;
            if (i_id.HasValue)
            {
                i_idParameter = new ObjectParameter("i_id", i_id);
            }
            else
            {
                i_idParameter = new ObjectParameter("i_id", typeof(global::System.Int32));
            }
    
            ObjectParameter uidParameter;
            if (uid.HasValue)
            {
                uidParameter = new ObjectParameter("uid", uid);
            }
            else
            {
                uidParameter = new ObjectParameter("uid", typeof(global::System.Int32));
            }
    
            ObjectParameter dateParameter;
            if (date != null)
            {
                dateParameter = new ObjectParameter("date", date);
            }
            else
            {
                dateParameter = new ObjectParameter("date", typeof(global::System.String));
            }
    
            ObjectParameter amountParameter;
            if (amount.HasValue)
            {
                amountParameter = new ObjectParameter("amount", amount);
            }
            else
            {
                amountParameter = new ObjectParameter("amount", typeof(global::System.Double));
            }
    
            ObjectParameter aaParameter;
            if (aa.HasValue)
            {
                aaParameter = new ObjectParameter("aa", aa);
            }
            else
            {
                aaParameter = new ObjectParameter("aa", typeof(global::System.Int32));
            }
    
            return base.ExecuteFunction<Nullable<global::System.Int32>>("sp1_invoice", i_idParameter, uidParameter, dateParameter, amountParameter, aaParameter);
        }
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        /// <param name="r_id">No Metadata Documentation available.</param>
        /// <param name="uid">No Metadata Documentation available.</param>
        /// <param name="receipt_date">No Metadata Documentation available.</param>
        /// <param name="amount">No Metadata Documentation available.</param>
        /// <param name="aa">No Metadata Documentation available.</param>
        public int sp1_receipt(Nullable<global::System.Int32> r_id, Nullable<global::System.Int32> uid, global::System.String receipt_date, Nullable<global::System.Double> amount, Nullable<global::System.Int32> aa)
        {
            ObjectParameter r_idParameter;
            if (r_id.HasValue)
            {
                r_idParameter = new ObjectParameter("r_id", r_id);
            }
            else
            {
                r_idParameter = new ObjectParameter("r_id", typeof(global::System.Int32));
            }
    
            ObjectParameter uidParameter;
            if (uid.HasValue)
            {
                uidParameter = new ObjectParameter("uid", uid);
            }
            else
            {
                uidParameter = new ObjectParameter("uid", typeof(global::System.Int32));
            }
    
            ObjectParameter receipt_dateParameter;
            if (receipt_date != null)
            {
                receipt_dateParameter = new ObjectParameter("receipt_date", receipt_date);
            }
            else
            {
                receipt_dateParameter = new ObjectParameter("receipt_date", typeof(global::System.String));
            }
    
            ObjectParameter amountParameter;
            if (amount.HasValue)
            {
                amountParameter = new ObjectParameter("amount", amount);
            }
            else
            {
                amountParameter = new ObjectParameter("amount", typeof(global::System.Double));
            }
    
            ObjectParameter aaParameter;
            if (aa.HasValue)
            {
                aaParameter = new ObjectParameter("aa", aa);
            }
            else
            {
                aaParameter = new ObjectParameter("aa", typeof(global::System.Int32));
            }
    
            return base.ExecuteFunction("sp1_receipt", r_idParameter, uidParameter, receipt_dateParameter, amountParameter, aaParameter);
        }
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        /// <param name="tick_id">No Metadata Documentation available.</param>
        /// <param name="uid">No Metadata Documentation available.</param>
        /// <param name="f_date">No Metadata Documentation available.</param>
        /// <param name="s_d">No Metadata Documentation available.</param>
        /// <param name="class">No Metadata Documentation available.</param>
        /// <param name="fare">No Metadata Documentation available.</param>
        /// <param name="ser_tax">No Metadata Documentation available.</param>
        /// <param name="edu_hec">No Metadata Documentation available.</param>
        /// <param name="scs_mfree">No Metadata Documentation available.</param>
        /// <param name="mcd_psf">No Metadata Documentation available.</param>
        /// <param name="void_tax">No Metadata Documentation available.</param>
        /// <param name="pnr">No Metadata Documentation available.</param>
        /// <param name="code">No Metadata Documentation available.</param>
        /// <param name="seat_pref">No Metadata Documentation available.</param>
        /// <param name="aa">No Metadata Documentation available.</param>
        public ObjectResult<Nullable<global::System.Int32>> sp1_ticket(Nullable<global::System.Int32> tick_id, Nullable<global::System.Int32> uid, global::System.String f_date, global::System.String s_d, global::System.String @class, Nullable<global::System.Double> fare, Nullable<global::System.Double> ser_tax, Nullable<global::System.Double> edu_hec, Nullable<global::System.Double> scs_mfree, Nullable<global::System.Double> mcd_psf, Nullable<global::System.Double> void_tax, global::System.String pnr, global::System.String code, global::System.String seat_pref, Nullable<global::System.Int32> aa)
        {
            ObjectParameter tick_idParameter;
            if (tick_id.HasValue)
            {
                tick_idParameter = new ObjectParameter("tick_id", tick_id);
            }
            else
            {
                tick_idParameter = new ObjectParameter("tick_id", typeof(global::System.Int32));
            }
    
            ObjectParameter uidParameter;
            if (uid.HasValue)
            {
                uidParameter = new ObjectParameter("uid", uid);
            }
            else
            {
                uidParameter = new ObjectParameter("uid", typeof(global::System.Int32));
            }
    
            ObjectParameter f_dateParameter;
            if (f_date != null)
            {
                f_dateParameter = new ObjectParameter("f_date", f_date);
            }
            else
            {
                f_dateParameter = new ObjectParameter("f_date", typeof(global::System.String));
            }
    
            ObjectParameter s_dParameter;
            if (s_d != null)
            {
                s_dParameter = new ObjectParameter("s_d", s_d);
            }
            else
            {
                s_dParameter = new ObjectParameter("s_d", typeof(global::System.String));
            }
    
            ObjectParameter classParameter;
            if (@class != null)
            {
                classParameter = new ObjectParameter("class", @class);
            }
            else
            {
                classParameter = new ObjectParameter("class", typeof(global::System.String));
            }
    
            ObjectParameter fareParameter;
            if (fare.HasValue)
            {
                fareParameter = new ObjectParameter("fare", fare);
            }
            else
            {
                fareParameter = new ObjectParameter("fare", typeof(global::System.Double));
            }
    
            ObjectParameter ser_taxParameter;
            if (ser_tax.HasValue)
            {
                ser_taxParameter = new ObjectParameter("ser_tax", ser_tax);
            }
            else
            {
                ser_taxParameter = new ObjectParameter("ser_tax", typeof(global::System.Double));
            }
    
            ObjectParameter edu_hecParameter;
            if (edu_hec.HasValue)
            {
                edu_hecParameter = new ObjectParameter("edu_hec", edu_hec);
            }
            else
            {
                edu_hecParameter = new ObjectParameter("edu_hec", typeof(global::System.Double));
            }
    
            ObjectParameter scs_mfreeParameter;
            if (scs_mfree.HasValue)
            {
                scs_mfreeParameter = new ObjectParameter("scs_mfree", scs_mfree);
            }
            else
            {
                scs_mfreeParameter = new ObjectParameter("scs_mfree", typeof(global::System.Double));
            }
    
            ObjectParameter mcd_psfParameter;
            if (mcd_psf.HasValue)
            {
                mcd_psfParameter = new ObjectParameter("mcd_psf", mcd_psf);
            }
            else
            {
                mcd_psfParameter = new ObjectParameter("mcd_psf", typeof(global::System.Double));
            }
    
            ObjectParameter void_taxParameter;
            if (void_tax.HasValue)
            {
                void_taxParameter = new ObjectParameter("void_tax", void_tax);
            }
            else
            {
                void_taxParameter = new ObjectParameter("void_tax", typeof(global::System.Double));
            }
    
            ObjectParameter pnrParameter;
            if (pnr != null)
            {
                pnrParameter = new ObjectParameter("pnr", pnr);
            }
            else
            {
                pnrParameter = new ObjectParameter("pnr", typeof(global::System.String));
            }
    
            ObjectParameter codeParameter;
            if (code != null)
            {
                codeParameter = new ObjectParameter("code", code);
            }
            else
            {
                codeParameter = new ObjectParameter("code", typeof(global::System.String));
            }
    
            ObjectParameter seat_prefParameter;
            if (seat_pref != null)
            {
                seat_prefParameter = new ObjectParameter("seat_pref", seat_pref);
            }
            else
            {
                seat_prefParameter = new ObjectParameter("seat_pref", typeof(global::System.String));
            }
    
            ObjectParameter aaParameter;
            if (aa.HasValue)
            {
                aaParameter = new ObjectParameter("aa", aa);
            }
            else
            {
                aaParameter = new ObjectParameter("aa", typeof(global::System.Int32));
            }
    
            return base.ExecuteFunction<Nullable<global::System.Int32>>("sp1_ticket", tick_idParameter, uidParameter, f_dateParameter, s_dParameter, classParameter, fareParameter, ser_taxParameter, edu_hecParameter, scs_mfreeParameter, mcd_psfParameter, void_taxParameter, pnrParameter, codeParameter, seat_prefParameter, aaParameter);
        }
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        /// <param name="trans_id">No Metadata Documentation available.</param>
        /// <param name="uid">No Metadata Documentation available.</param>
        /// <param name="trans_date">No Metadata Documentation available.</param>
        /// <param name="crad">No Metadata Documentation available.</param>
        /// <param name="debit">No Metadata Documentation available.</param>
        /// <param name="aa">No Metadata Documentation available.</param>
        public ObjectResult<Nullable<global::System.Int32>> sp1_trans(Nullable<global::System.Int32> trans_id, Nullable<global::System.Int32> uid, global::System.String trans_date, Nullable<global::System.Double> crad, Nullable<global::System.Double> debit, Nullable<global::System.Int32> aa)
        {
            ObjectParameter trans_idParameter;
            if (trans_id.HasValue)
            {
                trans_idParameter = new ObjectParameter("trans_id", trans_id);
            }
            else
            {
                trans_idParameter = new ObjectParameter("trans_id", typeof(global::System.Int32));
            }
    
            ObjectParameter uidParameter;
            if (uid.HasValue)
            {
                uidParameter = new ObjectParameter("uid", uid);
            }
            else
            {
                uidParameter = new ObjectParameter("uid", typeof(global::System.Int32));
            }
    
            ObjectParameter trans_dateParameter;
            if (trans_date != null)
            {
                trans_dateParameter = new ObjectParameter("trans_date", trans_date);
            }
            else
            {
                trans_dateParameter = new ObjectParameter("trans_date", typeof(global::System.String));
            }
    
            ObjectParameter cradParameter;
            if (crad.HasValue)
            {
                cradParameter = new ObjectParameter("crad", crad);
            }
            else
            {
                cradParameter = new ObjectParameter("crad", typeof(global::System.Double));
            }
    
            ObjectParameter debitParameter;
            if (debit.HasValue)
            {
                debitParameter = new ObjectParameter("debit", debit);
            }
            else
            {
                debitParameter = new ObjectParameter("debit", typeof(global::System.Double));
            }
    
            ObjectParameter aaParameter;
            if (aa.HasValue)
            {
                aaParameter = new ObjectParameter("aa", aa);
            }
            else
            {
                aaParameter = new ObjectParameter("aa", typeof(global::System.Int32));
            }
    
            return base.ExecuteFunction<Nullable<global::System.Int32>>("sp1_trans", trans_idParameter, uidParameter, trans_dateParameter, cradParameter, debitParameter, aaParameter);
        }
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        /// <param name="uid">No Metadata Documentation available.</param>
        /// <param name="username">No Metadata Documentation available.</param>
        /// <param name="address">No Metadata Documentation available.</param>
        /// <param name="phone_no">No Metadata Documentation available.</param>
        /// <param name="age">No Metadata Documentation available.</param>
        /// <param name="gender">No Metadata Documentation available.</param>
        /// <param name="invoice_no">No Metadata Documentation available.</param>
        /// <param name="cfor">No Metadata Documentation available.</param>
        /// <param name="trans_type">No Metadata Documentation available.</param>
        /// <param name="aa">No Metadata Documentation available.</param>
        public ObjectResult<Nullable<global::System.Int32>> sp1_client(Nullable<global::System.Int32> uid, global::System.String username, global::System.String address, global::System.String phone_no, Nullable<global::System.Int32> age, global::System.String gender, global::System.String invoice_no, Nullable<global::System.Int32> cfor, global::System.String trans_type, Nullable<global::System.Int32> aa)
        {
            ObjectParameter uidParameter;
            if (uid.HasValue)
            {
                uidParameter = new ObjectParameter("uid", uid);
            }
            else
            {
                uidParameter = new ObjectParameter("uid", typeof(global::System.Int32));
            }
    
            ObjectParameter usernameParameter;
            if (username != null)
            {
                usernameParameter = new ObjectParameter("username", username);
            }
            else
            {
                usernameParameter = new ObjectParameter("username", typeof(global::System.String));
            }
    
            ObjectParameter addressParameter;
            if (address != null)
            {
                addressParameter = new ObjectParameter("address", address);
            }
            else
            {
                addressParameter = new ObjectParameter("address", typeof(global::System.String));
            }
    
            ObjectParameter phone_noParameter;
            if (phone_no != null)
            {
                phone_noParameter = new ObjectParameter("phone_no", phone_no);
            }
            else
            {
                phone_noParameter = new ObjectParameter("phone_no", typeof(global::System.String));
            }
    
            ObjectParameter ageParameter;
            if (age.HasValue)
            {
                ageParameter = new ObjectParameter("age", age);
            }
            else
            {
                ageParameter = new ObjectParameter("age", typeof(global::System.Int32));
            }
    
            ObjectParameter genderParameter;
            if (gender != null)
            {
                genderParameter = new ObjectParameter("gender", gender);
            }
            else
            {
                genderParameter = new ObjectParameter("gender", typeof(global::System.String));
            }
    
            ObjectParameter invoice_noParameter;
            if (invoice_no != null)
            {
                invoice_noParameter = new ObjectParameter("invoice_no", invoice_no);
            }
            else
            {
                invoice_noParameter = new ObjectParameter("invoice_no", typeof(global::System.String));
            }
    
            ObjectParameter cforParameter;
            if (cfor.HasValue)
            {
                cforParameter = new ObjectParameter("cfor", cfor);
            }
            else
            {
                cforParameter = new ObjectParameter("cfor", typeof(global::System.Int32));
            }
    
            ObjectParameter trans_typeParameter;
            if (trans_type != null)
            {
                trans_typeParameter = new ObjectParameter("trans_type", trans_type);
            }
            else
            {
                trans_typeParameter = new ObjectParameter("trans_type", typeof(global::System.String));
            }
    
            ObjectParameter aaParameter;
            if (aa.HasValue)
            {
                aaParameter = new ObjectParameter("aa", aa);
            }
            else
            {
                aaParameter = new ObjectParameter("aa", typeof(global::System.Int32));
            }
    
            return base.ExecuteFunction<Nullable<global::System.Int32>>("sp1_client", uidParameter, usernameParameter, addressParameter, phone_noParameter, ageParameter, genderParameter, invoice_noParameter, cforParameter, trans_typeParameter, aaParameter);
        }

        #endregion
    }
    

    #endregion
    
    #region Entities
    
    /// <summary>
    /// No Metadata Documentation available.
    /// </summary>
    [EdmEntityTypeAttribute(NamespaceName="DatabaseModel", Name="airline")]
    [Serializable()]
    [DataContractAttribute(IsReference=true)]
    public partial class airline : EntityObject
    {
        #region Factory Method
    
        /// <summary>
        /// Create a new airline object.
        /// </summary>
        /// <param name="aid">Initial value of the aid property.</param>
        public static airline Createairline(global::System.Int32 aid)
        {
            airline airline = new airline();
            airline.aid = aid;
            return airline;
        }

        #endregion
        #region Primitive Properties
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=true, IsNullable=false)]
        [DataMemberAttribute()]
        public global::System.Int32 aid
        {
            get
            {
                return _aid;
            }
            set
            {
                if (_aid != value)
                {
                    OnaidChanging(value);
                    ReportPropertyChanging("aid");
                    _aid = StructuralObject.SetValidValue(value);
                    ReportPropertyChanged("aid");
                    OnaidChanged();
                }
            }
        }
        private global::System.Int32 _aid;
        partial void OnaidChanging(global::System.Int32 value);
        partial void OnaidChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public Nullable<global::System.Int32> uid
        {
            get
            {
                return _uid;
            }
            set
            {
                OnuidChanging(value);
                ReportPropertyChanging("uid");
                _uid = StructuralObject.SetValidValue(value);
                ReportPropertyChanged("uid");
                OnuidChanged();
            }
        }
        private Nullable<global::System.Int32> _uid;
        partial void OnuidChanging(Nullable<global::System.Int32> value);
        partial void OnuidChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public global::System.String airline_pref
        {
            get
            {
                return _airline_pref;
            }
            set
            {
                Onairline_prefChanging(value);
                ReportPropertyChanging("airline_pref");
                _airline_pref = StructuralObject.SetValidValue(value, true);
                ReportPropertyChanged("airline_pref");
                Onairline_prefChanged();
            }
        }
        private global::System.String _airline_pref;
        partial void Onairline_prefChanging(global::System.String value);
        partial void Onairline_prefChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public global::System.String flt_no
        {
            get
            {
                return _flt_no;
            }
            set
            {
                Onflt_noChanging(value);
                ReportPropertyChanging("flt_no");
                _flt_no = StructuralObject.SetValidValue(value, true);
                ReportPropertyChanged("flt_no");
                Onflt_noChanged();
            }
        }
        private global::System.String _flt_no;
        partial void Onflt_noChanging(global::System.String value);
        partial void Onflt_noChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public Nullable<global::System.Int32> status
        {
            get
            {
                return _status;
            }
            set
            {
                OnstatusChanging(value);
                ReportPropertyChanging("status");
                _status = StructuralObject.SetValidValue(value);
                ReportPropertyChanged("status");
                OnstatusChanged();
            }
        }
        private Nullable<global::System.Int32> _status;
        partial void OnstatusChanging(Nullable<global::System.Int32> value);
        partial void OnstatusChanged();

        #endregion
    
    }
    
    /// <summary>
    /// No Metadata Documentation available.
    /// </summary>
    [EdmEntityTypeAttribute(NamespaceName="DatabaseModel", Name="client")]
    [Serializable()]
    [DataContractAttribute(IsReference=true)]
    public partial class client : EntityObject
    {
        #region Factory Method
    
        /// <summary>
        /// Create a new client object.
        /// </summary>
        /// <param name="uid">Initial value of the uid property.</param>
        public static client Createclient(global::System.Int32 uid)
        {
            client client = new client();
            client.uid = uid;
            return client;
        }

        #endregion
        #region Primitive Properties
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=true, IsNullable=false)]
        [DataMemberAttribute()]
        public global::System.Int32 uid
        {
            get
            {
                return _uid;
            }
            set
            {
                if (_uid != value)
                {
                    OnuidChanging(value);
                    ReportPropertyChanging("uid");
                    _uid = StructuralObject.SetValidValue(value);
                    ReportPropertyChanged("uid");
                    OnuidChanged();
                }
            }
        }
        private global::System.Int32 _uid;
        partial void OnuidChanging(global::System.Int32 value);
        partial void OnuidChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public global::System.String username
        {
            get
            {
                return _username;
            }
            set
            {
                OnusernameChanging(value);
                ReportPropertyChanging("username");
                _username = StructuralObject.SetValidValue(value, true);
                ReportPropertyChanged("username");
                OnusernameChanged();
            }
        }
        private global::System.String _username;
        partial void OnusernameChanging(global::System.String value);
        partial void OnusernameChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public global::System.String address
        {
            get
            {
                return _address;
            }
            set
            {
                OnaddressChanging(value);
                ReportPropertyChanging("address");
                _address = StructuralObject.SetValidValue(value, true);
                ReportPropertyChanged("address");
                OnaddressChanged();
            }
        }
        private global::System.String _address;
        partial void OnaddressChanging(global::System.String value);
        partial void OnaddressChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public global::System.String phone_no
        {
            get
            {
                return _phone_no;
            }
            set
            {
                Onphone_noChanging(value);
                ReportPropertyChanging("phone_no");
                _phone_no = StructuralObject.SetValidValue(value, true);
                ReportPropertyChanged("phone_no");
                Onphone_noChanged();
            }
        }
        private global::System.String _phone_no;
        partial void Onphone_noChanging(global::System.String value);
        partial void Onphone_noChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public Nullable<global::System.Int32> age
        {
            get
            {
                return _age;
            }
            set
            {
                OnageChanging(value);
                ReportPropertyChanging("age");
                _age = StructuralObject.SetValidValue(value);
                ReportPropertyChanged("age");
                OnageChanged();
            }
        }
        private Nullable<global::System.Int32> _age;
        partial void OnageChanging(Nullable<global::System.Int32> value);
        partial void OnageChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public global::System.String gender
        {
            get
            {
                return _gender;
            }
            set
            {
                OngenderChanging(value);
                ReportPropertyChanging("gender");
                _gender = StructuralObject.SetValidValue(value, true);
                ReportPropertyChanged("gender");
                OngenderChanged();
            }
        }
        private global::System.String _gender;
        partial void OngenderChanging(global::System.String value);
        partial void OngenderChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public global::System.String invoice_no
        {
            get
            {
                return _invoice_no;
            }
            set
            {
                Oninvoice_noChanging(value);
                ReportPropertyChanging("invoice_no");
                _invoice_no = StructuralObject.SetValidValue(value, true);
                ReportPropertyChanged("invoice_no");
                Oninvoice_noChanged();
            }
        }
        private global::System.String _invoice_no;
        partial void Oninvoice_noChanging(global::System.String value);
        partial void Oninvoice_noChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public Nullable<global::System.Int32> cfor
        {
            get
            {
                return _cfor;
            }
            set
            {
                OncforChanging(value);
                ReportPropertyChanging("cfor");
                _cfor = StructuralObject.SetValidValue(value);
                ReportPropertyChanged("cfor");
                OncforChanged();
            }
        }
        private Nullable<global::System.Int32> _cfor;
        partial void OncforChanging(Nullable<global::System.Int32> value);
        partial void OncforChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public global::System.String type
        {
            get
            {
                return _type;
            }
            set
            {
                OntypeChanging(value);
                ReportPropertyChanging("type");
                _type = StructuralObject.SetValidValue(value, true);
                ReportPropertyChanged("type");
                OntypeChanged();
            }
        }
        private global::System.String _type;
        partial void OntypeChanging(global::System.String value);
        partial void OntypeChanged();

        #endregion
    
    }
    
    /// <summary>
    /// No Metadata Documentation available.
    /// </summary>
    [EdmEntityTypeAttribute(NamespaceName="DatabaseModel", Name="invoice")]
    [Serializable()]
    [DataContractAttribute(IsReference=true)]
    public partial class invoice : EntityObject
    {
        #region Factory Method
    
        /// <summary>
        /// Create a new invoice object.
        /// </summary>
        /// <param name="i_id">Initial value of the i_id property.</param>
        public static invoice Createinvoice(global::System.Int32 i_id)
        {
            invoice invoice = new invoice();
            invoice.i_id = i_id;
            return invoice;
        }

        #endregion
        #region Primitive Properties
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=true, IsNullable=false)]
        [DataMemberAttribute()]
        public global::System.Int32 i_id
        {
            get
            {
                return _i_id;
            }
            set
            {
                if (_i_id != value)
                {
                    Oni_idChanging(value);
                    ReportPropertyChanging("i_id");
                    _i_id = StructuralObject.SetValidValue(value);
                    ReportPropertyChanged("i_id");
                    Oni_idChanged();
                }
            }
        }
        private global::System.Int32 _i_id;
        partial void Oni_idChanging(global::System.Int32 value);
        partial void Oni_idChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public Nullable<global::System.Int32> uid
        {
            get
            {
                return _uid;
            }
            set
            {
                OnuidChanging(value);
                ReportPropertyChanging("uid");
                _uid = StructuralObject.SetValidValue(value);
                ReportPropertyChanged("uid");
                OnuidChanged();
            }
        }
        private Nullable<global::System.Int32> _uid;
        partial void OnuidChanging(Nullable<global::System.Int32> value);
        partial void OnuidChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public global::System.String date
        {
            get
            {
                return _date;
            }
            set
            {
                OndateChanging(value);
                ReportPropertyChanging("date");
                _date = StructuralObject.SetValidValue(value, true);
                ReportPropertyChanged("date");
                OndateChanged();
            }
        }
        private global::System.String _date;
        partial void OndateChanging(global::System.String value);
        partial void OndateChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public Nullable<global::System.Double> amount
        {
            get
            {
                return _amount;
            }
            set
            {
                OnamountChanging(value);
                ReportPropertyChanging("amount");
                _amount = StructuralObject.SetValidValue(value);
                ReportPropertyChanged("amount");
                OnamountChanged();
            }
        }
        private Nullable<global::System.Double> _amount;
        partial void OnamountChanging(Nullable<global::System.Double> value);
        partial void OnamountChanged();

        #endregion
    
    }
    
    /// <summary>
    /// No Metadata Documentation available.
    /// </summary>
    [EdmEntityTypeAttribute(NamespaceName="DatabaseModel", Name="receipt")]
    [Serializable()]
    [DataContractAttribute(IsReference=true)]
    public partial class receipt : EntityObject
    {
        #region Factory Method
    
        /// <summary>
        /// Create a new receipt object.
        /// </summary>
        /// <param name="r_id">Initial value of the r_id property.</param>
        public static receipt Createreceipt(global::System.Int32 r_id)
        {
            receipt receipt = new receipt();
            receipt.r_id = r_id;
            return receipt;
        }

        #endregion
        #region Primitive Properties
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=true, IsNullable=false)]
        [DataMemberAttribute()]
        public global::System.Int32 r_id
        {
            get
            {
                return _r_id;
            }
            set
            {
                if (_r_id != value)
                {
                    Onr_idChanging(value);
                    ReportPropertyChanging("r_id");
                    _r_id = StructuralObject.SetValidValue(value);
                    ReportPropertyChanged("r_id");
                    Onr_idChanged();
                }
            }
        }
        private global::System.Int32 _r_id;
        partial void Onr_idChanging(global::System.Int32 value);
        partial void Onr_idChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public Nullable<global::System.Int32> uid
        {
            get
            {
                return _uid;
            }
            set
            {
                OnuidChanging(value);
                ReportPropertyChanging("uid");
                _uid = StructuralObject.SetValidValue(value);
                ReportPropertyChanged("uid");
                OnuidChanged();
            }
        }
        private Nullable<global::System.Int32> _uid;
        partial void OnuidChanging(Nullable<global::System.Int32> value);
        partial void OnuidChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public global::System.String date
        {
            get
            {
                return _date;
            }
            set
            {
                OndateChanging(value);
                ReportPropertyChanging("date");
                _date = StructuralObject.SetValidValue(value, true);
                ReportPropertyChanged("date");
                OndateChanged();
            }
        }
        private global::System.String _date;
        partial void OndateChanging(global::System.String value);
        partial void OndateChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public Nullable<global::System.Double> amount
        {
            get
            {
                return _amount;
            }
            set
            {
                OnamountChanging(value);
                ReportPropertyChanging("amount");
                _amount = StructuralObject.SetValidValue(value);
                ReportPropertyChanged("amount");
                OnamountChanged();
            }
        }
        private Nullable<global::System.Double> _amount;
        partial void OnamountChanging(Nullable<global::System.Double> value);
        partial void OnamountChanged();

        #endregion
    
    }
    
    /// <summary>
    /// No Metadata Documentation available.
    /// </summary>
    [EdmEntityTypeAttribute(NamespaceName="DatabaseModel", Name="ticket")]
    [Serializable()]
    [DataContractAttribute(IsReference=true)]
    public partial class ticket : EntityObject
    {
        #region Factory Method
    
        /// <summary>
        /// Create a new ticket object.
        /// </summary>
        /// <param name="tick_id">Initial value of the tick_id property.</param>
        public static ticket Createticket(global::System.Int32 tick_id)
        {
            ticket ticket = new ticket();
            ticket.tick_id = tick_id;
            return ticket;
        }

        #endregion
        #region Primitive Properties
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=true, IsNullable=false)]
        [DataMemberAttribute()]
        public global::System.Int32 tick_id
        {
            get
            {
                return _tick_id;
            }
            set
            {
                if (_tick_id != value)
                {
                    Ontick_idChanging(value);
                    ReportPropertyChanging("tick_id");
                    _tick_id = StructuralObject.SetValidValue(value);
                    ReportPropertyChanged("tick_id");
                    Ontick_idChanged();
                }
            }
        }
        private global::System.Int32 _tick_id;
        partial void Ontick_idChanging(global::System.Int32 value);
        partial void Ontick_idChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public Nullable<global::System.Int32> uid
        {
            get
            {
                return _uid;
            }
            set
            {
                OnuidChanging(value);
                ReportPropertyChanging("uid");
                _uid = StructuralObject.SetValidValue(value);
                ReportPropertyChanged("uid");
                OnuidChanged();
            }
        }
        private Nullable<global::System.Int32> _uid;
        partial void OnuidChanging(Nullable<global::System.Int32> value);
        partial void OnuidChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public global::System.String f_date
        {
            get
            {
                return _f_date;
            }
            set
            {
                Onf_dateChanging(value);
                ReportPropertyChanging("f_date");
                _f_date = StructuralObject.SetValidValue(value, true);
                ReportPropertyChanged("f_date");
                Onf_dateChanged();
            }
        }
        private global::System.String _f_date;
        partial void Onf_dateChanging(global::System.String value);
        partial void Onf_dateChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public global::System.String source_destination
        {
            get
            {
                return _source_destination;
            }
            set
            {
                Onsource_destinationChanging(value);
                ReportPropertyChanging("source_destination");
                _source_destination = StructuralObject.SetValidValue(value, true);
                ReportPropertyChanged("source_destination");
                Onsource_destinationChanged();
            }
        }
        private global::System.String _source_destination;
        partial void Onsource_destinationChanging(global::System.String value);
        partial void Onsource_destinationChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public global::System.String @class
        {
            get
            {
                return _class;
            }
            set
            {
                OnclassChanging(value);
                ReportPropertyChanging("class");
                _class = StructuralObject.SetValidValue(value, true);
                ReportPropertyChanged("class");
                OnclassChanged();
            }
        }
        private global::System.String _class;
        partial void OnclassChanging(global::System.String value);
        partial void OnclassChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public Nullable<global::System.Double> fare
        {
            get
            {
                return _fare;
            }
            set
            {
                OnfareChanging(value);
                ReportPropertyChanging("fare");
                _fare = StructuralObject.SetValidValue(value);
                ReportPropertyChanged("fare");
                OnfareChanged();
            }
        }
        private Nullable<global::System.Double> _fare;
        partial void OnfareChanging(Nullable<global::System.Double> value);
        partial void OnfareChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public Nullable<global::System.Double> ser_tax
        {
            get
            {
                return _ser_tax;
            }
            set
            {
                Onser_taxChanging(value);
                ReportPropertyChanging("ser_tax");
                _ser_tax = StructuralObject.SetValidValue(value);
                ReportPropertyChanged("ser_tax");
                Onser_taxChanged();
            }
        }
        private Nullable<global::System.Double> _ser_tax;
        partial void Onser_taxChanging(Nullable<global::System.Double> value);
        partial void Onser_taxChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public Nullable<global::System.Double> edu_hec
        {
            get
            {
                return _edu_hec;
            }
            set
            {
                Onedu_hecChanging(value);
                ReportPropertyChanging("edu_hec");
                _edu_hec = StructuralObject.SetValidValue(value);
                ReportPropertyChanged("edu_hec");
                Onedu_hecChanged();
            }
        }
        private Nullable<global::System.Double> _edu_hec;
        partial void Onedu_hecChanging(Nullable<global::System.Double> value);
        partial void Onedu_hecChanged();
    
        /// <summary>
        /// No Metadata Documentation available.
        /// </summary>
        [EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=true)]
        [DataMemberAttribute()]
        public Nullable<global::System.Double> scs_mfree
        {
            get
            {
                return _scs_mfree;
            }
            set
            {
                Onscs_mfreeChanging(value);
                ReportPropertyChanging("scs_mfree");
                _scs_mfree = StructuralObject.SetValidValue(value);
                ReportPropertyChanged("scs_mfree");
                Onscs_mfreeChanged();
            }
        }
        private Nul

I'm not sure why you listed all that code. The part relevant to your SQL operation would have been adequate. I gave up looking for it so I don't know for certain the answer to your question but I would assume you are trying to insert a value into a column that is marked as IDENTITY.
Option one (as the error message says) is to adjust your IDENTITY_INSERT to be ON or correct your SQL statement/table design so the error doesn't occur.

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