I want to show a grid that involve a label and I want to show this in left-above of another grid.the wpf code(xml) is this :
<Grid.Triggers>
<EventTrigger RoutedEvent="FrameworkElement.Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleY)" >
<SplineDoubleKeyFrame KeyTime="0:0:0" Value="0"/>
<SplineDoubleKeyFrame KeyTime="0:0:0.5" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="0:0:2" Value="1"/>
<SplineDoubleKeyFrame KeyTime="0:0:5" Value="0"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Grid.Triggers>
<Grid.RenderTransform>
<ScaleTransform ScaleY="1" />
</Grid>
How to create this notification when press a button?
I have the C# code for this.
thanks.
Set Grid.Visibility on the grid when you push a button. You'll need an qualifying name x:Name="MyGrid" and could then set the visibility from code behind.
If you use some approach like MVVM, then you could databind the visibility of the grid to a bool in your ViewModel (and use a DataTrigger for this instead of the EventTrigger).
Edit:
As minimal as it can get:
<Grid x:Name="NotifyGrid" Visibility="Hidden">
<Label Content="Notification" />
</Grid>
<Button Content="Click" Click="Button_Click" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="50" />
And then in the Code Behind:
private void Button_Click(object sender, RoutedEventArgs e)
{
NotifyGrid.Visibility = System.Windows.Visibility.Visible;
}
Related
I tried to create a card game in WPF.
My Problem is that I want to flip a card at a certain time.
I created two storyboards in a datatemplate, one for each flip (back and front). But when I tried to access and start it from the code behind I got an error, because it can't access the grid, which contains the new card image, inside the datatemplate.
So my question is, how can I access the grid inside the datatemplate from code behind, to get my storyboard run?
Here is my code:
XAML:
<Window x:Class="KartenQuartett.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:KartenQuartett"
mc:Ignorable="d"
ResizeMode="NoResize"
Title="{Binding Title}" Height="510" Width="670" WindowStartupLocation="CenterScreen">
<Window.Resources>
<DataTemplate x:Key="RotatingItemTemplate">
<DataTemplate.Resources>
<Storyboard x:Key="Storyboard1">
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(FrameworkElement.LayoutTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)" Storyboard.TargetName="grid">
<EasingDoubleKeyFrame KeyTime="0" Value="1"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.5" Value="0">
<EasingDoubleKeyFrame.EasingFunction>
<QuinticEase EasingMode="EaseInOut"/>
</EasingDoubleKeyFrame.EasingFunction>
</EasingDoubleKeyFrame>
<EasingDoubleKeyFrame KeyTime="0:0:1" Value="-1">
<EasingDoubleKeyFrame.EasingFunction>
<QuinticEase EasingMode="EaseInOut"/>
</EasingDoubleKeyFrame.EasingFunction>
</EasingDoubleKeyFrame>
</DoubleAnimationUsingKeyFrames>
<Int32AnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.ZIndex)" Storyboard.TargetName="grid1">
<EasingInt32KeyFrame KeyTime="0" Value="0"/>
<EasingInt32KeyFrame KeyTime="0:0:0.5" Value="0"/>
<EasingInt32KeyFrame KeyTime="0:0:0.5" Value="1"/>
</Int32AnimationUsingKeyFrames>
<Int32AnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.ZIndex)" Storyboard.TargetName="image">
<EasingInt32KeyFrame KeyTime="0" Value="1"/>
<EasingInt32KeyFrame KeyTime="0:0:0.5" Value="1"/>
<EasingInt32KeyFrame KeyTime="0:0:0.5" Value="0"/>
</Int32AnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Storyboard1_reversed">
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(FrameworkElement.LayoutTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)" Storyboard.TargetName="grid">
<SplineDoubleKeyFrame KeyTime="0" Value="-1"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.5" Value="0">
<EasingDoubleKeyFrame.EasingFunction>
<QuinticEase EasingMode="EaseInOut"/>
</EasingDoubleKeyFrame.EasingFunction>
</EasingDoubleKeyFrame>
<EasingDoubleKeyFrame KeyTime="0:0:1" Value="1">
<EasingDoubleKeyFrame.EasingFunction>
<QuinticEase EasingMode="EaseInOut"/>
</EasingDoubleKeyFrame.EasingFunction>
</EasingDoubleKeyFrame>
</DoubleAnimationUsingKeyFrames>
<Int32AnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.ZIndex)" Storyboard.TargetName="grid1">
<EasingInt32KeyFrame KeyTime="0:0:0.5" Value="1"/>
<SplineInt32KeyFrame KeyTime="0:0:0.5" Value="0"/>
<SplineInt32KeyFrame KeyTime="0:0:1" Value="0"/>
</Int32AnimationUsingKeyFrames>
<Int32AnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.ZIndex)" Storyboard.TargetName="image">
<SplineInt32KeyFrame KeyTime="0:0:0.5" Value="0"/>
<SplineInt32KeyFrame KeyTime="0:0:0.5" Value="1"/>
<SplineInt32KeyFrame KeyTime="0:0:1" Value="1"/>
</Int32AnimationUsingKeyFrames>
</Storyboard>
</DataTemplate.Resources>
<Grid x:Name="grid">
<Grid.LayoutTransform>
<TransformGroup>
<ScaleTransform CenterX="0.5" CenterY="0.5"/>
<SkewTransform CenterX="0.5" CenterY="0.5"/>
<RotateTransform CenterX="0.5" CenterY="0.5"/>
<TranslateTransform/>
</TransformGroup>
</Grid.LayoutTransform>
<Grid x:Name="grid1">
<Image x:Name="image1" Source="{Binding ImageFront}" Stretch="Fill" />
<Grid.LayoutTransform>
<TransformGroup>
<ScaleTransform ScaleX="-1"/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Grid.LayoutTransform>
</Grid>
<Image x:Name="image" Source="{Binding Image}" Stretch="Fill" />
<Button x:Name="Bdrehen" Content="Drehen" HorizontalAlignment="Left" Margin="119,407,0,0" VerticalAlignment="Top" Width="75" Click="Bdrehen_Click"/>
</Grid>
<DataTemplate.Triggers>
<EventTrigger RoutedEvent="Button.Click" SourceName="Bdrehen">
<BeginStoryboard x:Name="Storyboard1_BeginStoryboard1" Storyboard="{StaticResource Storyboard1}"/>
</EventTrigger>
<EventTrigger RoutedEvent="UIElement.MouseLeftButtonDown" SourceName="grid1">
<StopStoryboard BeginStoryboardName="Storyboard1_BeginStoryboard1"/>
<BeginStoryboard x:Name="Storyboard1_reversed_BeginStoryboard" Storyboard="{StaticResource Storyboard1_reversed}"/>
</EventTrigger>
</DataTemplate.Triggers>
</DataTemplate>
</Window.Resources>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width=".5*"></ColumnDefinition>
<ColumnDefinition Width=".5*"></ColumnDefinition>
</Grid.ColumnDefinitions>
<Grid Grid.Column="0" x:Name="gridOne">
<Image x:Name="cardFront" Source="Bilder/card_front.png" Stretch="Fill">
</Image>
<StackPanel x:Name="stack1" Margin="25">
</StackPanel>
</Grid>
<Grid Grid.Column="1" x:Name="gridTwo">
<ScrollViewer ScrollViewer.HorizontalScrollBarVisibility="Auto" ScrollViewer.VerticalScrollBarVisibility="Disabled" >
<ItemsControl ItemsSource="{Binding MyImages}"
ItemsPanel="{DynamicResource ItemsPanelTemplate1}"
ItemTemplate="{DynamicResource RotatingItemTemplate}">
<ItemsControl.Resources>
<ItemsPanelTemplate x:Key="ItemsPanelTemplate1">
<VirtualizingStackPanel Orientation="Horizontal" IsItemsHost="True"/>
</ItemsPanelTemplate>
</ItemsControl.Resources>
</ItemsControl>
</ScrollViewer>
<StackPanel x:Name="stack2" Margin="25">
</StackPanel>
</Grid>
</Grid>
So "grid" and "grid1" are the elements, which can't accessed.
For tests i created a button "Bdrehen" to check, if I can access the flip from a button. This works perfect, it also works by left-clicking on it with the mouse. But not by code.
Heres the code, where I try to start it from code behind:
DataTemplate dt = (DataTemplate)FindResource("RotatingItemTemplate");
Storyboard sb = dt.Resources["Storyboard1_reversed"] as Storyboard;
BeginStoryboard(sb);
After starting I got an error, that the "grid" can't be found in the namespace of "KartenQuartett.MainWindow".
I can find my storyboards, but not my grids inside the datatemplate.
Anyone got an idea to fix it?
Here is your answer Calling Storyboard inside DataTemplate.
But keep in mind that doing that is not a good idea. Accessing any UI Element from your code behind is not a great idea, because it creates a tight coupling between your code and your UI.
I would suggest you to use MVVM instead, and to bind a boolean to run your storyboard as explained here: How to play Storyboard in ViewModel?
So I have an ItemsControl in which I'm animating newly added items with the following code:
EDIT, I have added more code as requested.
<ItemsControl Name="taskBox" ItemsSource="{Binding TaskList, Mode=OneWay}">
<ItemsControl.Resources>
<Storyboard x:Key="ItemEnterAnimation" AutoReverse="False">
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="container" Storyboard.TargetProperty="(UIElement.Opacity)">
<EasingDoubleKeyFrame KeyTime="0" Value="0" />
<EasingDoubleKeyFrame KeyTime="0:0:0.3" Value="1" />
</DoubleAnimationUsingKeyFrames>
<DoubleAnimation BeginTime="00:00:00" Duration="00:00:00.3" Storyboard.TargetName="container" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(TranslateTransform.X)" From="-30" To="0">
<DoubleAnimation.EasingFunction>
<CubicEase EasingMode="EaseOut"/>
</DoubleAnimation.EasingFunction>
</DoubleAnimation>
</Storyboard>
</ItemsControl.Resources>
<ItemsControl.ItemTemplate>
<DataTemplate>
<DataTemplate.Triggers>
<EventTrigger RoutedEvent="FrameworkElement.Loaded" >
<BeginStoryboard Storyboard="{StaticResource ItemEnterAnimation}" />
</EventTrigger>
</DataTemplate.Triggers>
<Grid Name="container">
<Grid.RenderTransform>
<TransformGroup>
<TranslateTransform/>
</TransformGroup>
</Grid.RenderTransform>
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
The problem is that there are certain things that can cause the underlying ObservableCollection (TaskList in the sample) to send a CollectionChanged(Reset) event, which causes all of the elements to reload. As a result, the enter animation will get called for every single item again.
Is there a way to only perform this animation one time when the item is first loaded?
I'm trying to animate a canvas in WPF using Storyboard and DoubleAnimationsUsingKeyFrames my code goes something like this:
<Canvas x:Name="bgCanvas" Height="261" Canvas.Top="-262" Width="720">
<Canvas.Background>
<ImageBrush ImageSource="Resources/backgroundBlurred.png" Stretch="UniformToFill"/>
</Canvas.Background>
<Canvas.Resources>
<Storyboard x:Key="bgAnim" x:Name="bgAnim">
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(bgCanvas.Opacity)" Storyboard.Target="bgCanvas">
<EasingDoubleKeyFrame KeyTime="0" Value="0" />
<EasingDoubleKeyFrame KeyTime="1.5" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</Canvas.Resources>
I'm also using Mahapps.Metro for the project. <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(bgCanvas.Opacity)" Storyboard.Target="bgCanvas"> is underlined by blue lines and the error reads:
bgCanvas is not supported in a Windows Presentation Format (WPF) Application.
I'm not sure whats wrong with the code.
BONUS: Is this the right way to animate a canvas in WPF?
Sorry for the nub questions.
You could start the animation in an EventTrigger on the Loaded event of the Canvas:
<Canvas ...>
<Canvas.Background>
<ImageBrush .../>
</Canvas.Background>
<Canvas.Triggers>
<EventTrigger RoutedEvent="Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity">
<EasingDoubleKeyFrame KeyTime="0" Value="0" />
<EasingDoubleKeyFrame KeyTime="0:0:1.5" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Canvas.Triggers>
</Canvas>
Replace (bgCanvas.Opacity) with (Canvas.Opacity)
I love the whole concept of Material Design, and especially its animations! And on my phones Musicplayer when pressing the Play/Pause button a relly neat animation starts blending between the two icons like this:
How can you do something like this in WPF? Maybe with Paths?
Tips would be really appreciated!! thanks
I have done something similar in Material Design in XAML Toolkit which replicates the menu 'burger' transitioning into a back arrow, using paths.
Essentially the menu is three horizontal line paths. To convert to a back arrow the two outer (above/below lines) are angled, scaled, and slightly moved using DoubleAnimationUsingKeyFrames.
On top of that the entire canvas is rotated 180 degrees.
This was made a lot easier by doing in blend.
The full XAML file is on GitHub here, you are looking for the MaterialDesignHamburgerToggleButton style. (I tried posting a large snippet, but Stack Overflow errored.)
<Window x:Class="Demo.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="650" Width="500"
xmlns:local="clr-namespace:Demo">
<Grid>
<Button Height="40" HorizontalAlignment="Left" IsEnabled="True" IsHitTestVisible="True" Margin="262,219,0,0" Name="home_btn" VerticalAlignment="Top" Width="89">
<Button.Template>
<ControlTemplate TargetType="{x:Type Button}">
<Grid>
<Image Name="Normal" Source="pause.png" />
<Image Name="Hover" Source="play.png" Opacity="0"/>
<Image Name="Pressed" Source="pause.png" Opacity="0" />
</Grid>
<ControlTemplate.Resources>
<Storyboard x:Key="MouseDownTimeLine">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="Pressed" Storyboard.TargetProperty="Opacity">
<SplineDoubleKeyFrame KeyTime="00:00:00.05" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="MouseUpTimeLine">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="Pressed" Storyboard.TargetProperty="Opacity">
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="0"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="MouseEnterTimeLine">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="Hover" Storyboard.TargetProperty="Opacity">
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="MouseExitTimeLine">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="Hover" Storyboard.TargetProperty="Opacity">
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="0"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</ControlTemplate.Resources>
<ControlTemplate.Triggers>
<Trigger Property="ButtonBase.IsPressed" Value="True">
<Trigger.EnterActions>
<BeginStoryboard Storyboard="{StaticResource MouseDownTimeLine}"/>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard Storyboard="{StaticResource MouseUpTimeLine}"/>
</Trigger.ExitActions>
</Trigger>
<Trigger Property="UIElement.IsMouseOver" Value="True">
<Trigger.EnterActions>
<BeginStoryboard Storyboard="{StaticResource MouseEnterTimeLine}"/>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard Storyboard="{StaticResource MouseExitTimeLine}"/>
</Trigger.ExitActions>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Button.Template>
</Button>
</Grid>
</Window>
I'm trying to create a control in WPF, similar to a card, that will have bound data on both "sides". Using the following code I can get it to flip from FIRST NAME to LAST NAME, just not back. Once it flips to LAST NAME and I click it just flashes like it's performing the same animation and not running the reverse. Any insight into this problem would be greatly appreciated.
<UserControl x:Class="WpfApplication2.TileControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<UserControl.Resources>
<Storyboard x:Key="FlipFirst">
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="Back">
<EasingDoubleKeyFrame KeyTime="0" Value="0"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.4" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)" Storyboard.TargetName="Back">
<EasingDoubleKeyFrame KeyTime="0" Value="-1"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.4" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="Front">
<EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)" Storyboard.TargetName="Front">
<EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.4" Value="-1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="FlipLast">
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="Back">
<SplineDoubleKeyFrame KeyTime="0" Value="1"/>
<SplineDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<SplineDoubleKeyFrame KeyTime="0:0:0.4" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)" Storyboard.TargetName="Back">
<SplineDoubleKeyFrame KeyTime="0" Value="1"/>
<SplineDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<SplineDoubleKeyFrame KeyTime="0:0:0.4" Value="-1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="Front">
<SplineDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<SplineDoubleKeyFrame KeyTime="0:0:0.4" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)" Storyboard.TargetName="Front">
<SplineDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<SplineDoubleKeyFrame KeyTime="0:0:0.4" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</UserControl.Resources>
<UserControl.Triggers>
<EventTrigger RoutedEvent="UIElement.MouseLeftButtonDown" SourceName="Front">
<BeginStoryboard x:Name="Storyboard_Begin" Storyboard="{StaticResource FlipFirst}"/>
</EventTrigger>
<EventTrigger RoutedEvent="UIElement.MouseLeftButtonDown" SourceName="Back">
<StopStoryboard BeginStoryboardName="Storyboard_Begin" />
<BeginStoryboard x:Name="Storyboard_Reversed" Storyboard="{StaticResource FlipLast}" />
</EventTrigger>
</UserControl.Triggers>
<Grid x:Name="LayoutRoot" Width="280" Height="680">
<Grid x:Name="Back" HorizontalAlignment="Left" Height="680" VerticalAlignment="Top" Width="280" Background="{DynamicResource {x:Static SystemColors.ActiveCaptionBrushKey}}" RenderTransformOrigin="0.5,0.5">
<Grid.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Grid.RenderTransform>
<TextBlock x:Name="LastName" HorizontalAlignment="Center" TextWrapping="Wrap" VerticalAlignment="Center" Margin="0" Text="LAST NAME" Width="100" Height="100"/>
</Grid>
<Grid x:Name="Front" HorizontalAlignment="Left" Height="680" VerticalAlignment="Top" Width="280" Background="{DynamicResource {x:Static SystemColors.ActiveCaptionBrushKey}}" RenderTransformOrigin="0.5,0.5">
<Grid.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Grid.RenderTransform>
<TextBlock x:Name="FirstName" HorizontalAlignment="Center" TextWrapping="Wrap" Text="FIRST NAME" VerticalAlignment="Center" Width="100" Height="100"/>
</Grid>
</Grid>
</UserControl>
The problem with the code is that first time when animation is run, the grid named "back" becomes visible to the user and grid named "front" becomes transparent. But still it is on the top of "Back" grid and capturing all the mouse hit.
So, when user again left click the mouse, it is captured by front grid not the back grid.
To solve this problem, You need to IsHitTestVisible to false when grid is transparent.
See the below code.
<UserControl x:Class="WpfApplication2.TileControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<UserControl.Resources>
<Storyboard x:Key="FlipFirst">
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="Back">
<EasingDoubleKeyFrame KeyTime="0" Value="0"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.4" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)" Storyboard.TargetName="Back">
<EasingDoubleKeyFrame KeyTime="0" Value="-1"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.4" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="Front">
<EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)" Storyboard.TargetName="Front">
<EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.4" Value="-1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="FlipLast">
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="Back">
<SplineDoubleKeyFrame KeyTime="0" Value="1"/>
<SplineDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<SplineDoubleKeyFrame KeyTime="0:0:0.4" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)" Storyboard.TargetName="Back">
<SplineDoubleKeyFrame KeyTime="0" Value="1"/>
<SplineDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<SplineDoubleKeyFrame KeyTime="0:0:0.4" Value="-1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="Front">
<SplineDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<SplineDoubleKeyFrame KeyTime="0:0:0.4" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)" Storyboard.TargetName="Front">
<SplineDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
<SplineDoubleKeyFrame KeyTime="0:0:0.4" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</UserControl.Resources>
<UserControl.Triggers>
<EventTrigger RoutedEvent="UIElement.MouseLeftButtonDown" SourceName="Front">
<BeginStoryboard x:Name="Storyboard_Begin" Storyboard="{StaticResource FlipFirst}"/>
</EventTrigger>
<EventTrigger RoutedEvent="UIElement.MouseLeftButtonDown" SourceName="Back">
<StopStoryboard BeginStoryboardName="Storyboard_Begin" />
<BeginStoryboard x:Name="Storyboard_Reversed" Storyboard="{StaticResource FlipLast}" />
</EventTrigger>
</UserControl.Triggers>
<Grid x:Name="LayoutRoot" Width="280" Height="680">
<Grid.Resources>
<Style TargetType="Grid">
<Setter Property="IsHitTestVisible" Value="True" />
<Style.Triggers>
<Trigger Property="Opacity" Value="0">
<Setter Property="IsHitTestVisible" Value="False"/>
</Trigger>
</Style.Triggers>
</Style>
</Grid.Resources>
<Grid x:Name="Back" HorizontalAlignment="Left" Height="680" VerticalAlignment="Top" Width="280" Background="{DynamicResource {x:Static SystemColors.ActiveCaptionBrushKey}}" RenderTransformOrigin="0.5,0.5">
<Grid.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Grid.RenderTransform>
<TextBlock x:Name="LastName" HorizontalAlignment="Center" TextWrapping="Wrap" VerticalAlignment="Center" Margin="0" Text="LAST NAME" Width="100" Height="100"/>
</Grid>
<Grid x:Name="Front" HorizontalAlignment="Left" Height="680" VerticalAlignment="Top" Width="280" Background="{DynamicResource {x:Static SystemColors.ActiveCaptionBrushKey}}" RenderTransformOrigin="0.5,0.5">
<Grid.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Grid.RenderTransform>
<TextBlock x:Name="FirstName" HorizontalAlignment="Center" TextWrapping="Wrap" Text="FIRST NAME" VerticalAlignment="Center" Width="100" Height="100"/>
</Grid>
</Grid>
</UserControl>