How can I walk through the InnerExceptions? Would the following code be
correct?
Private Sub ShowException(ByVal ex As Exception)
MsgBox(ex.Message)
If ex.InnerException Is Nothing = False Then _
ShowException(ex.InnerException)
End Sub
I thought I saw a snippet a while ago using a For...Each loop, but I'm
unable to find it again.
*** Sent via Developersdex http://www.developersdex.com *** 5  7536 
Hello Terry,
I've not had call to walk over inner exceptions, however, if you really want
to, then you'll need to use a recursive function.
Private Function GetInnerException(byref tException As Exception) As String
Dim tReturn As String = String.Empty
If Not Nothing Is tException Then
tReturn = tException.ToString()
If Not Nothing Is tException.InnerException Then
tReturn = tReturn & GetInnerException(tException.InnerException)
End If
End If
Return tReturn
End Function How can I walk through the InnerExceptions? Would the following code
be correct?
Private Sub ShowException(ByVal ex As Exception)
MsgBox(ex.Message)
If ex.InnerException Is Nothing = False Then _
ShowException(ex.InnerException)
End Sub
I thought I saw a snippet a while ago using a For...Each loop, but I'm
unable to find it again.
*** Sent via Developersdex http://www.developersdex.com ***
No, there is no need for a recursive function. It can be done just as
easily using a simple loop:
Private Function GetInnerException(byref tException As Exception) As String
Dim tReturn As String = String.Empty
Do While Not tException Is Nothing
tReturn &= tException.ToString()
tException = tException.InnerException
Loop
Return tReturn
End Function
Save the recursion for when it's useful. :)
GhostInAK wrote: Hello Terry,
I've not had call to walk over inner exceptions, however, if you really
want to, then you'll need to use a recursive function.
Private Function GetInnerException(byref tException As Exception) As String
Dim tReturn As String = String.Empty
If Not Nothing Is tException Then
tReturn = tException.ToString()
If Not Nothing Is tException.InnerException Then
tReturn = tReturn & GetInnerException(tException.InnerException)
End If
End If
Return tReturn
End Function
How can I walk through the InnerExceptions? Would the following code
be correct?
Private Sub ShowException(ByVal ex As Exception)
MsgBox(ex.Message)
If ex.InnerException Is Nothing = False Then _
ShowException(ex.InnerException)
End Sub
I thought I saw a snippet a while ago using a For...Each loop, but I'm
unable to find it again.
*** Sent via Developersdex http://www.developersdex.com ***
Thanks. I knew recursion wasn't necessary because I'd seen it before
done this way.
*** Sent via Developersdex http://www.developersdex.com ***
Hello Göran,
No no no. tException is declared ByRef. You dont wanna be changing it's
value willy-nilly like that. If you want to use a loop like that then pass
the exception ByVal.
-Boo No, there is no need for a recursive function. It can be done just as
easily using a simple loop:
Private Function GetInnerException(byref tException As Exception) As
String
Dim tReturn As String = String.Empty
Do While Not tException Is Nothing
tReturn &= tException.ToString()
tException = tException.InnerException
Loop
Return tReturn
End Function
Save the recursion for when it's useful. :)
GhostInAK wrote:
Hello Terry,
I've not had call to walk over inner exceptions, however, if you
really want to, then you'll need to use a recursive function.
Private Function GetInnerException(byref tException As Exception) As
String
Dim tReturn As String = String.Empty
If Not Nothing Is tException Then
tReturn = tException.ToString()
If Not Nothing Is tException.InnerException Then
tReturn = tReturn & GetInnerException(tException.InnerException)
End If
End If
Return tReturn
End Function
How can I walk through the InnerExceptions? Would the following code
be correct?
Private Sub ShowException(ByVal ex As Exception)
MsgBox(ex.Message)
If ex.InnerException Is Nothing = False Then _
ShowException(ex.InnerException)
End Sub
I thought I saw a snippet a while ago using a For...Each loop, but
I'm
unable to find it again.
*** Sent via Developersdex http://www.developersdex.com ***
You are right. I didn't notice the byref when I copied the code. There
is no reason to send the reference to the exception by reference. Simply
remove the byref from the method:
Private Function GetInnerException(tException As Exception) As String
Dim tReturn As String = String.Empty
Do While Not tException Is Nothing
tReturn &= tException.ToString()
tException = tException.InnerException
Loop
Return tReturn
End Function
GhostInAK wrote: Hello Göran,
No no no. tException is declared ByRef. You dont wanna be changing
it's value willy-nilly like that. If you want to use a loop like that
then pass the exception ByVal.
-Boo
No, there is no need for a recursive function. It can be done just as
easily using a simple loop:
Private Function GetInnerException(byref tException As Exception) As
String
Dim tReturn As String = String.Empty
Do While Not tException Is Nothing
tReturn &= tException.ToString()
tException = tException.InnerException
Loop
Return tReturn
End Function
Save the recursion for when it's useful. :)
GhostInAK wrote:
Hello Terry,
I've not had call to walk over inner exceptions, however, if you
really want to, then you'll need to use a recursive function.
Private Function GetInnerException(byref tException As Exception) As
String
Dim tReturn As String = String.Empty
If Not Nothing Is tException Then
tReturn = tException.ToString()
If Not Nothing Is tException.InnerException Then
tReturn = tReturn & GetInnerException(tException.InnerException)
End If
End If
Return tReturn
End Function
How can I walk through the InnerExceptions? Would the following code
be correct?
Private Sub ShowException(ByVal ex As Exception)
MsgBox(ex.Message)
If ex.InnerException Is Nothing = False Then _
ShowException(ex.InnerException)
End Sub
I thought I saw a snippet a while ago using a For...Each loop, but
I'm
unable to find it again.
*** Sent via Developersdex http://www.developersdex.com ***
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