Question

I am trying to pass in a delegate using an anonymous method into progressBar.Invoke(Delegate):

progressBar.Invoke(() => progressBar.Value = count);

But I get the following error:

Cannot convert lambda expression to type ‘System.Delegate’ because it is not a delegate type.

Could someone please explain what I am doing wrong?

Answer 1

That method takes a Delegate, not an Action. Therefore, when you do just this:

() => { .. }

It doesn’t know what delegate you want. Do this instead:

progressBar.Invoke(new Action(() => progressBar.Value = count));