Drag & Drop / Window Focus

[LMSSonos]

This question is more c# console specific than probably Terminal.Gui.

I have implemented drag & drop with a TextField and attached the TextChanging event. In that event I call File.Exists() for the TextChangingEventArgs.NewText once it is true, i handle it as if it was a drop. This works very well.

My main issue is, that in that case i set the focus to another TextField where I can enter the description, the thing I'm struggling is to bring the window to front and activate it, so that I just can go on typing. I tried the BringWindowToTop which works to bring the window on top, but I did not find any way to activate it.