Pane size lost when maximize a minimized tab that was previously maximized

[Etienne]

Hi,

I have a docking with some tabPane that I dedock and maximize in a second monitor. When I minimize my application and then maximize it, the tabPane isn't maximized anymore. Is there a way to fix this problem ?

Thank you,

Etienne

[Kalin]

Hello Etienne,

This is an expected behavior and it is caused by the default framework behavior of the native WPF Window. The floating Pane is placed in ToolWindow which inherits from RadWidndow and RadWindow is hosted in native WPF Window. So you can observe the same behavior using native WPF Windows - if you maximize a child Window with Owner MainWindow on the second screen and minimize and restore the MainWindow the child Window will get restored to its initial size.

Hope this helps.

Regards,
Kalin
Telerik

 

 

[Etienne]

Hello Kalin,

So is there a way to get the behavior that I expect with RadDocking ?

Also, I compared with Visual Studio and it's not the same behavior than RadDocking. When the parent window of a maximized child window is minimized and maximized back, the child window is maximized.

Thank you,

Etienne

[Kalin]

Hi Etienne,

You would need to manually implement that behavior. For example to hook to the StateChanged event of the Window and when minimizing the find all of the maximized ToolWindows and the MainWindow is restored to Maximize the needed ToolWindows (you might need to use a Dispatcher). Also note that this might cause flickering (when manually maximizing the ToolWindow).

Indeed the VisialStudio behaves differently - it behaves differently for the different child windows (test the same scenario with one of the coding child windows).

Hope this helps.

Regards,
Kalin
Telerik

 

 

[Markus Hopfenspirger]

I had the same problem and with the help of this thread and some others I developed this helper function. You can call this Function on StateChanged of the window.

Instead of ActionScheduler.ScheduleAction(...) you can probably use Dispatcher.BeginInvoke(...)

public static void HandleWindowsStateChanged(Window window) {
    try {
        if (window.WindowState == WindowState.Minimized) return;

        var docking = window.ChildrenOfType<Telerik.Windows.Controls.RadDocking>();
        foreach (var radDocking in docking) {
            foreach (var pane in radDocking.Panes) {
                if (pane.IsFloating) {
                    var toolWindow = pane.ParentOfType<ToolWindow>();
                    if (toolWindow != null && toolWindow.WindowState == WindowState.Maximized) {
                        ActionScheduler.ScheduleAction(() => toolWindow.WindowState = WindowState.Maximized, true, delayInMilliseconds: 600);
                    }
                }
            }
        }
    } catch {
        //Ignor errors here
    }
}

[Kalin]

Hi Markus,

Thanks for sharing your implementation.

Regards,
Kalin
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