Combobox error in c#

Question

 

Hi,

i am using visual studio 2013. when i am try to select combobox values i am this error (Accessviolationexception was unhandled:

(Attempted to read or write protected memory. This is often an indication that other memory is corrupt.)

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Windows.Forms;

using System.Data.SqlServerCe;

using System.Threading;

namespace Rpos

{

static class Program

{

/// <summary>

/// The main entry point for the application.

/// </summary>

[STAThread]

static void Main()

{

Application.EnableVisualStyles();

Application.SetCompatibleTextRenderingDefault(false);

Application.Run(new LoginPage()); // i am getting exception in this place (AccessViolationException was unhandled )

}

}

}

I tried this two links also

 

http://stackoverflow.com/questions/12509252/unhandled-exception-system-accessviolationexception-attempted-to-read-or-write

http://bytes.com/topic/c-sharp/answers/947976-i-get-system-accessviolationexception-unhandled

 

and increased virtual memory also ...but i am getting same error.... 

 

pls give me suggestion any one as soon as possible....thanks in advance