Question

I am trying to catch an exception but occasionally get an inner exception. I want to output both into a label.
I often get Object reference not set to instance of an object if there is no inner exception.

Catch ex As Exception
          exError = ex.Message.ToString
          If Not ex.InnerException.Message Is Nothing Then
     exError &= "<br/>" & ex.InnerException.Message.ToString

                End If

                Return View()
            End Try

Answer 1

Change it to:

 If Not ex.InnerException Is Nothing Then
     exError &= "<br/>" & ex.InnerException.Message.ToString
 End If

Or, as StingyJack pointed out:

If ex.InnerException IsNot Nothing Then
   exError &= "<br/>" & ex.InnerException.Message.ToString
End If