Method does not have same signature etc...

[Anil Gupte]

I created a button dynamically and added an event hander as follows:
AddHandler newbtnPick.Clic k, AddressOf newbtnPick_Clic k

Private Sub newbtnPick_Clic k()

End Sub

I get an error:
Method 'Public Sub newbtnPick_Clic k()' does not have the same signature as
delegate 'Delegate Sub EventHandler(se nder As Object, e As
System.EventArg s)'.

So of coutse I added
ByVal sender As Object, ByVal e As EventArgs

to give me
Private Sub newbtnPick_Clic k(ByVal sender As Object, ByVal e As EventArgs)

End Sub

In fact even this does nto work:
Private Sub newbtnPick_Clic k(ByVal sender As Object)

End Sub

Why do I need the second parameter? And I am curious, how does it know I
will need the sender object?

Thanx,

--
Anil Gupte

https://www.keeninc.net

www.icinema.com

[Mattias Sjögren]

Re: Method does not have same signature etc...

>Why do I need the second parameter? And I am curious, how does it know I

>will need the sender object?

You need to make sure the method signature matches the delegate
signature. It doesn't matter if you're actually going to use the
parameters in your code or not.


Mattias

--
Mattias Sjögren [C# MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
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