Question

Recently I have been using anonymous method a lot, so I wonder if I do like:

Say in my MainWindow class, I have:

ChildWindow myChildWindow = new ChildWindow();
myChildWindow.Closing+= (o, e) => {
 //DoSomething
 rootGrid.Children.Remove(o as ChildWindow);
}
this.rootGrid.Children.Add(myChildWindow );
myChildWindow.Show();

In this case I won’t be able to remove the event handler from .Closing since is defined with anonymous method.

Will this ChildWindow still be collected by GC?

Answer 1

Yes.

All you’re doing is creating a delegate with closure object and referencing that from the child window.

You aren’t creating any additional references to the child window.