Changing the cursor in WPF sometimes works, sometimes doesn't

Question

On several of my usercontrols, I change the cursor by using

this.Cursor = Cursors.Wait;

when I click on something.

Now I want to do

Answer 1

Do you need the cursor to be a "wait" cursor only when it's over that particular page/usercontrol? If not, I'd suggest using Mouse.OverrideCursor:

Mouse.OverrideCursor = Cursors.Wait;
try
{
    // do stuff
}
finally
{
    Mouse.OverrideCursor = null;
}

This overrides the cursor for your application rather than just for a part of its UI, so the problem you're describing goes away.