Bring a Window to the Front in Wpf

Bring a window to the front in WPF

Well I figured out a work around. I'm making the call from a keyboard hook used to implement a hotkey. The call works as expected if I put it into a BackgroundWorker with a pause. It's a kludge, but I have no idea why it wasn't working originally.

void hotkey_execute()
{
    IntPtr handle = new WindowInteropHelper(Application.Current.MainWindow).Handle;
    BackgroundWorker bg = new BackgroundWorker();
    bg.DoWork += new DoWorkEventHandler(delegate
        {
            Thread.Sleep(10);
            SwitchToThisWindow(handle, true);
        });
    bg.RunWorkerAsync();
}

How can I bring the main WPF window to the front?

Try this code

 Dispatcher.Invoke(() =>
            {
                this.Activate();
                this.WindowState = System.Windows.WindowState.Normal;
                this.Topmost = true;
                this.Focus(); 
            });

WPF - Bring Window to Front

Window.Activate is the way to go (If you dont want to set to owner). If this does not work (as you describe), there is an error at another location.
Maybe your MainWindow has TopMost set to true ? Or you have a deferred call that focuses your main window or a control within?

Calling ShowDialog() as proposed in another answer is not an option unless you want that the whole app is blocked until the modal opened window is closed.

There is an error in the Win32-Api that influences also the window-management if WPF, but the description of your problem does not sound like this.

Additionally here a hack, but I hope that you don't need it:

Dispatcher.BeginInvoke(new Action(delegate {       
        view.Activate();
        }), System.Windows.Threading.DispatcherPriority.ContextIdle, null);

How do bring a WPF Window to front?

You could use Window.Activate instead:

window.Activate();

This is the WPF equivelent to calling SetForegroundWindow.

Bring UserControl in front of Window Foreground

Your usercontroll is named popUp and in the button click event you call pop to be visible. that might be a typo.

In general: If you want an UIelement to be on top of other UIelements you only need to make sure it is the last UIelement in the same container.

Example of the right order for two colored Grid's And a button in the same a grid.(you can play with this and change the order a few times to see the effects.)
XAML:

 <Grid x:Name="ContainerGridForAllthreeUIElements">
    <Grid x:Name="BlueGrid" Background="Blue"/>
    <Grid x:Name="RedGrid" Background="Red" Visibility="Collapsed" Margin="40">
        <Viewbox>
            <TextBlock Text=" I'll be back" Margin="10"/>
        </Viewbox>            
    </Grid>
    <Button 
        x:Name="Button_Toggle" 
        Content="Click to toggle"
        Click="Button_Toggle_Click" 
        HorizontalAlignment="Center"
        VerticalAlignment="Center"/>
</Grid>

Code behind:

private void Button_Toggle_Click(object sender, RoutedEventArgs e)
    {
        if(RedGrid.Visibility == Visibility.Collapsed)
        {
            RedGrid.Visibility = Visibility.Visible;
            BlueGrid.Opacity = 0.4;
        }
        else
        {
            BlueGrid.Opacity = 1;
            RedGrid.Visibility = Visibility.Collapsed;
        }
    }

Happy coding.

Followup: Bring a window to the front in WPF

With a hack it's possible. Just do that:

Topmost = true;
Topmost = false;

and the window should be in front.

How to bring a new window open in front of Main Window in WPF after switching to any other application in MVVM architecture?

I got it correct when I gave like this:

  NewWindow newWindow = new NewWindow ();
  newWindow.Owner= Application.Current.MainWindow;
  newWindow.ShowDialog();

Bringing another process to front in WPF

I think you can do it with the following code

var process = Process.Start(binaryLocation
                                  + @"\TestApp.exe", powDBop + " " + mDBop);

  SetForegroundWindow(process.MainWindowHandle);

 [DllImport("user32.dll")]
 private static extern bool SetForegroundWindow(IntPtr hWnd);

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