Server Error in '/' Application.

Object reference not set to an instance of an object.

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.NullReferenceException: Object reference not set to an instance of an object.

Source Error:


Line 214:            DetailList.Add(product.SaleAbility.ToString());
Line 215:            DetailList.Add(product.fileName.ToString());
Line 216:            DetailList.Add(product.EnglishTitle.ToString());
Line 217:            DetailList.Add(product.GiftId_fk.ToString());
Line 218:            DetailList.Add(product.GiftTitle.ToString());

Source File: c:\inetpub\vhosts\hamicomp.ir\httpdocs\products.aspx.cs    Line: 216

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   Default2.loadDetails() in c:\inetpub\vhosts\hamicomp.ir\httpdocs\products.aspx.cs:216
   Default2.LoadRelatedData() in c:\inetpub\vhosts\hamicomp.ir\httpdocs\products.aspx.cs:115
   Default2.Page_Load(Object sender, EventArgs e) in c:\inetpub\vhosts\hamicomp.ir\httpdocs\products.aspx.cs:86
   System.Web.UI.Control.OnLoad(EventArgs e) +107
   System.Web.UI.Control.LoadRecursive() +89
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1532


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4700.0