窗口最顶端的混乱 - 没有出路？

Question

In my WPF application I have a fullscreen MainWindow . From The MainWindow the user can open a PreviewWindow . The PreviewWindow is a modal window so it is on top of the MainWindow. So far so good.

Still the user is able to select the MainWindow from the Windows Taskbar while the PreviewWindow is open. Then the PreviewWindow is hidden under the MainWindow but the MainWindow is inavtive since the PreviewWindow is still the only active window. For the user it looks like the application is not responding anymore.

I don't know why my users work like that but they do and it causes a lot of confusion.

Our first solution was the make the PreviewWindow topmost but that did not help much. From the PreviewWindow the user can open a SaveDialog . But with the PreviewWindow topmost the SaveDialog is hidden under the PreviewWindow .

My idea is to make the PreviewWindow topmost untill the user opens the SaveDialog . And make it topmost again after the SaveDialog has endet.

Is this the only way to do it? Is there a way to bring a modal window back to top when its parent window is choosen?

Answer 1

Two things:

1. Make sure your PreviewWindow has ShowInTaskbar set to False .
2. Set PreviewWindow.Owner = MainWindow and then try with both Show() and ShowDialog() .

Answer 2

If it is a modal window, you should be displaying it using Window.ShowDialog() .

Is there some reason you cannot do that?

Answer 3

Other answers are not complete or relevant. Sorry guys ;)

Use ShowDialog() in order to wait end of second window before continuing with first window. Use Owner property to link windows.

   previewWindow = new Window2();
   previewWindow.Owner = this;
   previewWindow.ShowDialog();

That's work with 3 or more windows if you want (w1 launch w2, w2 launch w3, ...). When selecting first window in taskbar, all windows will appear.

You don't need to set TopMost or ShowInTaskbar properties (but you can if you want particular behaviour)