Use properties Message, StackTrace and InnerException : Exception « Development « VB.Net Tutorial

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VB.Net
VB.Net Tutorial » Development » Exception 
7. 4. 2. Use properties Message, StackTrace and InnerException
 
 


Class Tester

   Shared Sub Main()

      Try
         Method1()

      Catch exceptionParameter As Exception
         Console.WriteLine(exceptionParameter.ToString())

         Console.WriteLine(exceptionParameter.Message)

         Console.WriteLine(exceptionParameter.StackTrace)

         Console.WriteLine(exceptionParameter.InnerException.ToString())
      End Try
   End Sub 

   Public Shared Sub Method1()
      Method2()
   End Sub

   Public Shared Sub Method2()
      Method3()
   End Sub

   Public Shared Sub Method3()
      Try
         Convert.ToInt32("Not an integer")
      Catch formatException As FormatException
         Throw New Exception("Exception occurred in Method3", _
            formatException)
      End Try
   End Sub
End Class

        
  
 
  




System.Exception: Exception occurred in Method3 ---> System.FormatException: Input string was not in
 a correct format.
   at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFor
matInfo info, Boolean parseDecimal)
   at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
   at Tester.Method3()
   --- End of inner exception stack trace ---
   at Tester.Method3()
   at Tester.Main()
Exception occurred in Method3
   at Tester.Method3()
   at Tester.Main()
System.FormatException: Input string was not in a correct format.
   at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFor
matInfo info, Boolean parseDecimal)
   at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
   at Tester.Method3()
7. 4. Exception
7. 4. 1. Basics of Visual Basic exception handling
7. 4. 2. Use properties Message, StackTrace and InnerException
7. 4. 3. Get Message from Exception
7. 4. 4. Convert Exception to String
7. 4. 5. Exception fields
7. 4. 6. Display Exception Trace
7. 4. 7. Throw Exception out of a Method
7. 4. 8. Catch Exception in a function
7. 4. 9. Set Exception HelpLink
7. 4. 10. Serializable Exception Inheriting NullReferenceException
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