I want to prevent a single event being hooked more than 1 time. How can I determine if a event is hooked to a handler and the number of time it is hooked
if("myButton.Click not being handled")
myButton.Click += new EventHandler(myButton_Click);
Thanks
How to determine if a event is handled?
ParamSE
You can't, only when the event is a direct member you can use GetInvocationList to iterate over all subscribers:
foreach (Delegate subcriber in MyEvent.GetInvocationList())
{
Console.WriteLine(subcriber.Method.Name);
}
Otherwise you can allways use a flag:
You can't, only when the event is a direct member you can use GetInvocationList to iterate over all subscribers:
private bool _wired = false;
private void WireClickEvent()
{
if( !_wired )
{
_myButton.Click += new EventHandler( ... );
_wired = true;
}
}