InvalidCastException : Predefined Exception « Development « VB.Net Tutorial

1. VB.Net Tutorial
2. Development
3. Predefined Exception

Option Strict On

Public Module ThrowStatement
   Public Function GetEvenNumber() As Integer
      Dim inputString As String = "asdf"

      Throw New InvalidCastException("Unable to convert '" & inputString & "' to an integer")

      Return 0
   End Function


   Public Sub Main
         Try
            Console.WriteLine(GetEvenNumber())
         Catch e As InvalidCastException
            Console.WriteLine(e.GetType().Name & ": " & e.Message)
         Catch e As Exception
            Console.WriteLine(e.GetType().Name & ": " & e.Message)
         End Try
   End Sub
End Module

InvalidCastException: Unable to convert 'asdf' to an integer