Wait window in a windows application

Question

I basically need to show a wait window to the user. For this i have put two seperate window forms in the application. the first form is the main form with a button. The second one is a empty one with just a label text. On click of the button in Form1 i do the below

Form2 f = new Form2();
f.Show();
Thread.Sleep(2000);
f.Close();

My idea here is to show the wait window to the user for 2 second. But when i do this the Form 2 is not completely loaded because of which the label in it is blank. Please let me know your inputs on this.

Answer 1

That's because you probably do some lengthy operation in the same thread (UI thread). You should execute your code in a new thread (see Thread class) or at least call Application.DoEvents periodically from inside your lengthy operation to update the UI.