Server Error in '/' Application.

Row not found or changed.

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.Linq.ChangeConflictException: Row not found or changed.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[ChangeConflictException: Row not found or changed.]
   System.Data.Linq.ChangeProcessor.SubmitChanges(ConflictMode failureMode) +1194
   System.Data.Linq.DataContext.SubmitChanges(ConflictMode failureMode) +641
   Controller.Config.Addvister() in d:\SVN\HUY HIEU GIA RE\Controller\Config.cs:89
   MVC_Kutun.Global.Session_Start(Object sender, EventArgs e) in d:\SVN\HUY HIEU GIA RE\MVC_Kutun\Global.asax.cs:45
   System.Web.SessionState.SessionStateModule.CompleteAcquireState() +364
   System.Web.SessionState.SessionStateModule.BeginAcquireState(Object source, EventArgs e, AsyncCallback cb, Object extraData) +1226
   System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +625
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +195
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +128


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3930.0