Server Error in '/' Application.

Argument 'Expression' cannot be converted to type 'DBNull'.

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.ArgumentException: Argument 'Expression' cannot be converted to type 'DBNull'.

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:


[ArgumentException: Argument 'Expression' cannot be converted to type 'DBNull'.]
   Microsoft.VisualBasic.Conversion.Val(Object Expression) +435
   iStock.NetGold.SetNetGold(String stockNo) +1349
   iStock.NetGold.GetData() +174
   iStock.NetGold.Page_Load(Object sender, EventArgs e) +69
   System.Web.UI.Control.OnLoad(EventArgs e) +106
   System.Web.UI.Control.LoadRecursive() +68
   System.Web.UI.Control.LoadRecursive() +162
   System.Web.UI.Control.LoadRecursive() +162
   System.Web.UI.Control.LoadRecursive() +162
   System.Web.UI.Control.LoadRecursive() +162
   System.Web.UI.Control.LoadRecursive() +162
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4069.0