How to catch the ending resize window?

Question

I need catch the event endresize in WPF.

Answer 1

For UWP with Rx (System.Reactive)

            //Stop window updates
            rootFrame = new Frame
            {
                HorizontalAlignment = HorizontalAlignment.Left,
                VerticalAlignment = VerticalAlignment.Top,
                Width = Window.Current.Bounds.Width,
                Height = Window.Current.Bounds.Height
            };

            //updates after throttling
            var sizeChangedObservable = Observable.FromEventPattern(
                      handler => Window.Current.SizeChanged += handler,
                      handler => Window.Current.SizeChanged -= handler);

            sizeChangedObservable.Throttle(TimeSpan.FromSeconds(0.35)).ObserveOnDispatcher(CoreDispatcherPriority.Normal).Subscribe(x =>
            {
                rootFrame.Width = x.EventArgs.Size.Width;
                rootFrame.Height = x.EventArgs.Size.Height;
            });