Is there any way to create a generic event handler that can be
subscribed to any event? If I have a sub..
Private Sub DataTable_Somet hingChanged(sen der As Object, e As
System.EventArg s)
and subscribe it to
AddHandler dataTable.Colum nChanged, AddressOf SomethingChange d
it gives me this error
Method 'Private Sub DataTable_Somet hingChanged(sen der As Object, e As
System.EventArg s)' does not have the same signature as delegate
'Delegate Sub DataColumnChang eEventHandler(s ender As Object, e As
System.Data.Dat aColumnChangeEv entArgs)'.
Even though the signature doesn't match exactly, it is still
compatible. If it wasn't a delegate but just a regular method call I
could pass an instance of DataColumnChang eEventArgs to a variable
expecting EventArgs. But that appears no to be the case with
delegates.
Any work-around? What I want to do is have one function that listens
to several events and at this point it seems I need a separate
function for each since they need different signatures (I don't care
about the details at all, I just want to know the event was
triggered).
Thanks,
Sam
B-Line is now hiring one VB.NET developer for
WinForms + WebServices position with ASPX in future.
Seaking mid to senior level developer. For
information or to apply e-mail sam_blinex_com.
1  1579  Is there any way to create a generic event handler that can be
subscribed to any event?
In v1.x, no. In v2.0 the runtime supports it, but I'm not sure VB.NET
will.
Any work-around?
Create multiple event handlers that all call a common method.
Mattias
--
Mattias Sjögren [MVP] mattias @ mvps.org http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
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