array question

[usvpn]

See also, XVBT

Hi,
I use:

Dim MyArray() As String = = EmailMessage.GetHeaderField("Disposition-Notification-To")

EmailMessage is a 3rd party component, now it may or may not have anything, so the array is null/nothing in that case.
In that case, any operation on array will return System.NullReferenceException
Even if I want to check if the array :

If MyArray IsNot Nothing
or
If MyArray.Length = 0

All will result in System.NullReferenceException
How to check such an array at all?
Thanks.

 

[joe_pool_is]

First, get rid of the double equals (==). That is 'C' syntax.

Next, have you tried the logic backwards and using parenthesis?

If (MyArray Is Nothing) Then
  Return
End If
' Process your code here