Sir I want to connect sql server database as a public in asp.net C#
i'm connected sql server in Web.Config file but i don't know how to use as a public in full project help me sir

Create a public class which contains the connection string and new connection creation in a single method.
use the public class method in full project any where.

public class DBConnectionClass
{
public Sqlconnection GetConnection()
{
string ConnectionString=System.Configuration.ConfigurationMangare.Connectionstring["ConnectionStringNameinWeb.config"].tostring();
Sqlconnection Cn=new SqlConnection(ConnectionString);
return Cn;
}
}

It may helps you for my expectations.
Show me your code I can helps you little bit more,if your not did with the above code.
Always Ping Me,

Web.Config file code :-

<?xml version="1.0"?>

<configuration>
	<appSettings/>
	<connectionStrings>
		<remove name="LocalSqlServer"/>
  <add name="BankingConnectionString" connectionString="Data Source=LUHACH-PC;Initial Catalog=Banking;Integrated Security=True"
   providerName="System.Data.SqlClient" />
 </connectionStrings>
	
	<system.web>
	
		<compilation debug="true"/>
		
		<authentication mode="Forms">
			
			<forms loginUrl="LoginPage.aspx" name="login" protection="All"/>
			
		</authentication>
		
	</system.web>
</configuration>

DB_Connection.cs File Code :-

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;


public class DB_Connection
{
	public DB_Connection()
	{
        string ConnectionString = System.Configuration.ConfigurationMangare.Connectionstring["BankingConnectionString"].tostring();
        Sqlconnection con = new SqlConnection(ConnectionString);
        return con;
	}
}

Login Page :-

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Security.Cryptography;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Collections;


public partial class _Default : System.Web.UI.Page 
{

    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void LoginButton_Click(object sender, EventArgs e)
    {
        try
        {
           //SqlConnection con = new SqlConnection("Data Source=LUHACH-PC;Initial Catalog=Banking;Integrated Security=True");
           //con.Open();
           SqlCommand cmd = new SqlCommand("select * from Login_Details where UserName=@Name and Password=@Password", con);
            cmd.Parameters.AddWithValue("@Name", UserName_TextBox.Text);
            cmd.Parameters.AddWithValue("@password", Password_TextBox.Text);
            SqlDataReader dr = cmd.ExecuteReader();
            dr.Read();
            if (dr.HasRows)
            {
                Response.Redirect("Home_Page.aspx");
               
            }
            else
            {
                Messag.Text = "Enter Correct UserName & Password";
            }
        }
        catch(SqlException ex)
        {
            Messag.Text = ex.Message;
        }
    }
}

plzzz help me and show me how to use connection use as a public...

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