Server Error in '/' Application.

Operator '=' is not defined for type 'DBNull' and type 'Integer'.

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.InvalidCastException: Operator '=' is not defined for type 'DBNull' and type 'Integer'.

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:


[InvalidCastException: Operator '=' is not defined for type 'DBNull' and type 'Integer'.]
   Microsoft.VisualBasic.CompilerServices.Operators.ConditionalCompareObjectEqual(Object Left, Object Right, Boolean TextCompare) +186
   NeelwaFurat.Itemsbought.bindtable(DataView aDataView) +317
   NeelwaFurat.Itemsbought.ShowLast() +289
   NeelwaFurat.Itemsbought.Page_Load(Object sender, EventArgs e) +2136
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4690.0