Thank you
After some investigation, I cannot seem to get this to work.
I created this method:
private static void DisplayDelegate(Delegate obj) {
foreach (Delegate d in obj.GetInvocationList()) {
Console.WriteLine("Method Name: {0}", d.Method);
Console.WriteLine("Type Name: {0}", d.Target);
}
}
and called the method as such:
DisplayDelegate(cb.CheckedChanged)
where
cb is a System.Web.UI.WebControls.CheckBox
and the compiler tells me:
The event 'System.Web.UI.WebControls.CheckBox.CheckedChanged' can only
appear on the left hand side of += or -=
What might I be doing incorrectly here?
Is what I want to do even possible?
Thanks,
Mike
On 2/14/07, Phil Sayers <[EMAIL PROTECTED]> wrote:
google for GetInvocationList
that should point you in the right direction
-----Original Message-----
From: Discussion of advanced .NET topics.
[mailto:[EMAIL PROTECTED] Behalf Of Mike Andrews
Sent: Wednesday, February 14, 2007 2:52 PM
To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM
Subject: [ADVANCED-DOTNET] Determining if an event has been assigned a
delegate...
Guys,
Do any of you know if it's possible to determine if an event for an object
has been assigned a delegate?
Example:
Dim cb As New CheckBox()
cb.Name = "MyCheckBox"
AddHandler(cb.CheckChanged, AddressOf CheckChanged)
...
Public Sub CheckChanged(Object sender, EventArgs e)
...
End Sub
Is it possible to know if cb.CheckChanged has been assigned a handler or
not?
Thanks,
Mike
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