k.d.m

My code here, I want only product.name being updated. How do I do this ? p/s: Give me many ways to do this public ActionResult EditProduct(Product product) { if (ModelState.IsValid) { db.Entry(product).State = EntityState.Modified; db.SaveChanges(); } return View(); }

{ conOOC.Open(); SqlCommand cmdDisplay = new SqlCommand("SELECT * FROM [Course] WHERE ([CourseID] = @id)", conOOC); cmdDisplay.Parameters.AddWithValue("@id", ddlCourseList.SelectedValue); SqlDataReader dtrDisplay = cmdDisplay.ExecuteReader(); while (dtrDisplay.Read()) { GridView1.DataSource = dtrDisplay; GridView1.DataBind(); } this one is depends on user select which items on the dropdownlist, once they have selected should display the gridview, but …

I created an application on asp.net using visual studio 2008 and i wanted it to run on IIS(Internet information server). but when you run it in the browser, it brings this error XML Parsing Error: not well-formed Location: [url]http://localhost/Default.aspx[/url] Line Number 1, Column 2:<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="WebApplication1._Default" %> …

Hi, Suppose i have a model with a validation [CODE]public class LoginModel { [Required(ErrorMessage="ID not entered")] [StringLength(5,ErrorMessage = "Length should be 5")] public string Id { get; set; } }[/CODE] In the view page i have a text box. When the validation fails. The controller returns to the view page …

Hi Thanks for viewing this thread. Does anyone know how to display MessageBox at C# aspx pages? Sorry i cannot use MessageBox.Show() as it does not display it when i run it with IIS. Please ask me more question if you need to. Thanks for the help

How to handle "0 rows found" error while filling datatable with select query that returns 0 rows.

I m trying to connect an sql express database over lan. my connection string is as below. Data Source=Mr-4f04a26307ff\sqlexpress; AttachDBFilename=F:\\Projects\\MyProj\\FirstProj\\bin\\Debug\\Database\\MyDB.mdf;Integrated Security=ture; User Instance=true; but unable to connect and throw this exception Login Failed for user 'Mr-4f04a26307ff\Guest' What is the problem with this and what is the solution. thnx

Please tell me what r interfaces ..... I tried to understand them myself but could not !!!??? Please help !

Hi, I'm developing an application which has a treeview and a crystal report viewer. There are a lot of other stuff too, but I want to make the user be able to change the size of the treeview with the mouse (see the picture) [url]http://imageshack.us/photo/my-images/3/mousedrag.png/[/url] how can I do this? …

Hello, I have been struggling with this for hours now. Is there any way to completely remove the icon that is displayed in the upper left corner of a window in WPF, without setting the window style to ToolWindow? I have tried loading user32 and setting various WinAPI-styles with no …

how to create pdf file from c#

Hi, I have developed a software program using c#.net and with sql server express. When I put this into production environment this should be able only for people who has a get the software by me. Eg: If I have issues a license, it should be valid only to a …

Could you please tutor me on how to make this connection? (using visual studio 2008) @"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\DBRestaurant.mdf;Integrated Security=True;Persist Security Info=False;User ID=annamarie;TrustServerCertificate=False;User Instance=True"

Hi, I am using VS2010. I created s ADO.net Entity data model and try to insert new object to database. Here is the code. [CODE] var cus = new StudentMaster() { studentId =5, studentName = "THA", studentAddress = "GOD" }; s.StudentMasters.AddObject(cus); s.SaveChanges();[/CODE] This didn't give any exception and it worked …

Hi, I am using VS 2008 express edition. I want to use asp.net configuration tool .But when i execute the tool it is not working. It display this message in browser '[B]An error was [/B][B]encountered. Please return to the previous page and try again. [/B]'. even though i refresh the …

Hello, I am trying to send files from one folder on the C drive to another using a simple C# Win forms. I have created this but unable to get it working. Can anyone help? [CODE] private void butSort1_Click(object sender, EventArgs e) { string sourceFile = @"C:\Test\test.txt"; string destinationFile = …

C# noob. Ok, here's what I'm trying to do ... I have a dbUtilities class I've made. And its my desire to have methods in it like "FillListBoxFromDB" .... I want to pass the listBox that will be the target, and the sql query command. I will have multiple places …

Hello every one Can we change the settings of a dll file after deployment if we can not , any alternative suggestions ? thx

I have an MDI form "mdi1". And another form "form1" On mdi1 I have a label "lbl1" I want to change text of lbl1 when a button on form1 is clicked. form1 is a child form of mdi1. How can i do this.

hi guys what constructors should i use for this program? [CODE]using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace BACKUPEXEFILES { public class cCOPY { private string _directorypath; private string _filename; public string directorypath { get { return _directorypath; } set { _directorypath = value; } } public string filename …

hi there, i am creating an application in visual studio 2008 standard edition. i have a form all frmMainMenu and a frmLogin and a frmAddNewProposal. i have a close button in frmMainMenu, i want to coed this so that when i click on the close button the frmLogin should appear. …

hi..i want that the matter in my label1 on the first page shud be copied to other page on the label present there.... and also i want that the value in drop down box that person choses on first page is copied to label on second page......... pls help....

Hey everyone, For logging purposes, I want to pass an entire row of my DB to a file. Is there an easy way to store a row of items into an array or something similar that I could pass to a function for parsing? e.g., array = SELECT * FROM …

I am new to C# and have been given someone elses' code to edit. One of the things that needs to be edited is the windows interface. Is there a way to pull up the IDE to edit the generated windows from the .designer.cs file? Thanks!

Hello, I had start a thread for how to attach a database on our program. I was really thankful to daniweb. I have create project on windows application (C#) back end is SQL server2005 I have dettach my database from SQL servr2005 and attach database in Visual Studio 2008 But …

any one know how to search a string array for a particular value a then remove it from there without keeping a null element to find the element where the value exists and then to remove the element Please if any one know how to do it give me an …

i have a windows form application, and i want that when i execute the program, program must show me the main form quickly, but my program firstly do some operations (connecting to sql, filling the combobox etc. ) because in form_load function i call a function to fill the combo …

Friends , I am working with [B]windows application with C#[/B].As i am new to crystal reports am having a doubt. Iam displaying the report fom dataset by passing two parametes. After passing these two parametes i am binding the data into a dataset. The code is given below Dataset ds1=new …

What are this? I read this on some forums. It goes like this [CODE]da.InsertCommand = new SqlCommand ("insert into table values('')",con);[/CODE] a dataadapter calling an sql command? Could someone explain me this?

I have two forms named form1 and form2 respectively. And a MDI form named mdi1. I want to open form2 as a child of mdi1 when a button on form1 is clicked. How can I do this please help me.