Server Error in '/Online' 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 46:                 strtitle = rdr("articletitle")
Line 47:             End While
Line 48:             Label4.Text = "Please login to continue with the Pre-Test for """ & strtitle.ToString() & ""
Line 49:             ' Label4.Text = Replace(Label4.Text, " - Pre Course", ".") & """" & "  If you have not already registered, please enter your e-mail address below and click ""Register.""" & "<br/><br/>"
Line 50: 

Source File: E:\inetpub\wwwroot\SPH\LPHI\onlinecourses\Online\login1a.aspx.vb    Line: 48

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   PublicHealthTraining1.login1a.Page_Load(Object sender, EventArgs e) in E:\inetpub\wwwroot\SPH\LPHI\onlinecourses\Online\login1a.aspx.vb:48
   System.EventHandler.Invoke(Object sender, EventArgs e) +0
   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