c# - Modeless dialog box in App store -

in c#, how can show modeless dialog box app store application?

my app has multiple views , long time task. show task progress in modeless box @ top-right corner of screen.

it information box, no interaction user , should not affect user. user must able navigate across views, enter data, etc.

popup control solves it:

var p = new popup(); p.child = new myusercontrol(); p.isopen = true;