<Window x:Class="AnimateNavigateTransitions.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="AnimateNavigateTransitions" Height="300" Width="300">
<Window.Resources>
<Storyboard x:Key="transitionAnimation" TargetName="transitionPlaceholder">
<DoubleAnimation Storyboard.TargetProperty="Opacity"
From="1" To="0" DecelerationRatio="1"
Duration="0:0:0.4" />
</Storyboard>
</Window.Resources>
<StackPanel>
<Frame Name="mainFrame" Source="Page1.xaml" />
<Canvas Name="transitionPlaceholder" IsHitTestVisible="False" />
</StackPanel>
</Window>
//File:Window.xaml.cs
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Windows.Navigation;
using System.Windows.Media.Animation;
namespace AnimateNavigateTransitions
{
public partial class Window1 : System.Windows.Window
{
VisualBrush lastPageBrush;
public Window1()
{
InitializeComponent();
mainFrame.Navigating += new System.Windows.Navigation.NavigatingCancelEventHandler(mainFrame_Navigating);
mainFrame.Navigated += new NavigatedEventHandler(mainFrame_Navigated);
}
void mainFrame_Navigating(object sender, NavigatingCancelEventArgs e)
{
Page lastPage = mainFrame.Content as Page;
if (lastPage == null){
lastPageBrush = null;
return;
}
lastPageBrush = new VisualBrush(lastPage);
lastPageBrush.Viewbox = new Rect(0, 0, lastPage.ActualWidth,lastPage.ActualHeight);
lastPageBrush.ViewboxUnits = BrushMappingMode.Absolute;
lastPageBrush.Stretch = Stretch.None;
Point pageOffset = lastPage.TransformToVisual(this).Transform(new Point());
transitionPlaceholder.Margin = new Thickness(pageOffset.X, pageOffset.Y,0, 0);
}
void mainFrame_Navigated(object sender, NavigationEventArgs e)
{
if (lastPageBrush == null){
return ;
}
transitionPlaceholder.Background = lastPageBrush;
lastPageBrush = null;
Storyboard sb = (Storyboard) FindResource("transitionAnimation");
sb.Begin(this);
}
}
}
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