WPF: Popup always floats on top. How do i correct that?

The popup that gets opened in my app always stays on top. It goes away when i minimize开发者_运维知识库 the app. But otherwise if the app opens a new window or if i switch to another program without minimizing the app, the popup stays on top. How do i hide the popup when the app loses focus?

Thanks

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It sounds like you need to set the owner/parent of the popup to the correct window by setting the Owner property to the window that created it.

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You can pass owner (parent window) to the constructor of the popup window and then specify

public class PopupWindow: Window
{
    public PopupWindow(Window owner)
    {
        this.Owner = owner;
    }
}

Then open your popup window

Now to open your popup window you will use something like this:

var popup = new PopupWindow(ownerWindow);
popup.Show();

or if caller is a parent (owner)

var popup = new PopupWindow(this);
popup.Show();