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 20: 
Line 21:         Dim cpCon As LinksInfo = (From apgs In maDc.LinksInfos Where apgs.sLinkID = PageID).FirstOrDefault
Line 22:         Dim cpCon1 As LinksInfo = (From apgs In maDc.LinksInfos Where apgs.sLinkID = cpCon.ParentLinkID).FirstOrDefault
Line 23:         If cpCon1 IsNot Nothing Then
Line 24:             Li1.InnerHtml = cpCon1.sLinkName

Source File: D:\WEBSITES\healthcare-ssc.in\httpdocs\Show-Page.aspx.vb    Line: 22

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   System.Data.Linq.SqlClient.QueryConverter.VisitInvocation(InvocationExpression invoke) +1194
   System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +1090
   System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +33
   System.Data.Linq.SqlClient.QueryConverter.VisitBinary(BinaryExpression b) +47
   System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +445
   System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +33
   System.Data.Linq.SqlClient.QueryConverter.VisitBinary(BinaryExpression b) +32
   System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +445
   System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +33
   System.Data.Linq.SqlClient.QueryConverter.VisitWhere(Expression sequence, LambdaExpression predicate) +150
   System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +841
   System.Data.Linq.SqlClient.QueryConverter.VisitFirst(Expression sequence, LambdaExpression lambda, Boolean isFirst) +46
   System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +841
   System.Data.Linq.SqlClient.QueryConverter.ConvertOuter(Expression node) +128
   System.Data.Linq.SqlClient.SqlProvider.BuildQuery(Expression query, SqlNodeAnnotations annotations) +163
   System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) +159
   System.Data.Linq.DataQuery`1.System.Linq.IQueryProvider.Execute(Expression expression) +48
   Show_Page.LoadPageContents(Int32 PageID) in D:\WEBSITES\healthcare-ssc.in\httpdocs\Show-Page.aspx.vb:22
   Show_Page.Page_Load(Object sender, EventArgs e) in D:\WEBSITES\healthcare-ssc.in\httpdocs\Show-Page.aspx.vb:14
   System.Web.UI.Control.OnLoad(EventArgs e) +106
   System.Web.UI.Control.LoadRecursive() +68
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4087.0