Getting animation element from storyboard - c#

I have this storyboard in resource dictionary file:
<Storyboard x:Key="InfoDissolve">
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Visibility)">
<DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Visible}"/>
<DiscreteObjectKeyFrame KeyTime="0:0:5" x:Name="OutVisibility" Value="{x:Static Visibility.Hidden}"/>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation
Storyboard.TargetProperty="Opacity"
BeginTime="0:0:0" From="0.0" To="1.0" Duration="0:0:0.3"/>
<DoubleAnimation
x:Name="OutOpacity"
Storyboard.TargetProperty="Opacity"
BeginTime="0:0:3" From="1.0" To="0.0" Duration="0:0:2"/>
</Storyboard>
And in the code behind I get it like this
var sb = (Storyboard) MW.FindResource("InfoDissolve");
In the code behind, I need to access the outvisibility keyframe and the outopacity doubleanimation so i can change their keytime and begintime.
How can i do that?


sb.Children
This timeline collection will contain the two DoubleAnimation objects. Just add a test on their name, and do what you want with each one (you will need to cast them I believe)

Related

Color Palette Using GridView in UWP?

I need color palette look like this.I don't know how to write code.

You can create a ViewModel which contains Color property, then get a list of Color you want to show and bind the list with GridView, creating an Ellipse in each GridViewItem to show different color. Below I take the system color list as an example.
.xaml:
<GridView x:Name="colorList2" Width="400" Height="600" Background="LightGray" ItemsSource="{x:Bind Colors,Mode=OneWay}">
<GridView.ItemContainerStyle>
<Style TargetType="GridViewItem">
<Setter Property="Margin" Value="10"/>
</Style>
</GridView.ItemContainerStyle>
<GridView.ItemsPanel>
<ItemsPanelTemplate>
<ItemsWrapGrid Orientation="Horizontal" MaximumRowsOrColumns="5"/>
</ItemsPanelTemplate>
</GridView.ItemsPanel>
<GridView.ItemTemplate>
<DataTemplate>
<Grid>
<Ellipse Fill="{Binding Color}" Height="60" Width="60"/>
</Grid>
</DataTemplate>
</GridView.ItemTemplate>
</GridView>
.cs:
public class MyColor
{
public SolidColorBrush Color { get; set; }
}
public sealed partial class BlankPage1 : Page
{
public BlankPage1()
{
this.InitializeComponent();
Colors = new ObservableCollection<MyColor>();
foreach (var color in typeof(Colors).GetRuntimeProperties())
{
Colors.Add(new MyColor() { Color = new SolidColorBrush((Color)color.GetValue(null)) });
}
}
public ObservableCollection<MyColor> Colors { get; set; }
}
Update:
If you want to change the border of clicked item to Black, you need to change override ItemContainerStyle for your GridViewItem. You can go to generic.xaml to copy the GridViewItemExpanded style which applied for GridViewItem. In the GridViewItemExpanded style, there is a Rectangle named BorderRectangle represents the Border, you just need to change its Stroke property in different visual states.
Usage:
<GridView ItemContainerStyle="{StaticResource MyRoundItem2}">
......
Style:
<Page.Resources>
<Style TargetType="GridViewItem" x:Key="MyRoundItem">
......
<Setter Property="Margin" Value="10" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="GridViewItem">
<Grid x:Name="ContentBorder"
Control.IsTemplateFocusTarget="True"
FocusVisualMargin="{TemplateBinding FocusVisualMargin}"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
CornerRadius="{TemplateBinding CornerRadius}"
RenderTransformOrigin="0.5,0.5">
<Grid.RenderTransform>
<ScaleTransform x:Name="ContentBorderScale" />
</Grid.RenderTransform>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="FocusStates">
<VisualState x:Name="Focused">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderRectangle" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Collapsed" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Unfocused" />
</VisualStateGroup>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal">
<Storyboard>
<PointerUpThemeAnimation Storyboard.TargetName="ContentPresenter" />
</Storyboard>
</VisualState>
<VisualState x:Name="PointerOver">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="BorderRectangle"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="1" />
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderRectangle" Storyboard.TargetProperty="Stroke">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListLowBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlForegroundBaseHighBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentBorder" Storyboard.TargetProperty="FocusVisualSecondaryBrush">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListLowBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentBorder" Storyboard.TargetProperty="FocusVisualSecondaryThickness">
<DiscreteObjectKeyFrame KeyTime="0" Value="2" />
</ObjectAnimationUsingKeyFrames>
<PointerUpThemeAnimation Storyboard.TargetName="ContentPresenter" />
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="BorderRectangle"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="1" />
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderRectangle" Storyboard.TargetProperty="Stroke">
<DiscreteObjectKeyFrame KeyTime="0" Value="Black" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlForegroundBaseHighBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentBorder" Storyboard.TargetProperty="FocusVisualSecondaryBrush">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListMediumBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentBorder" Storyboard.TargetProperty="FocusVisualSecondaryThickness">
<DiscreteObjectKeyFrame KeyTime="0" Value="2" />
</ObjectAnimationUsingKeyFrames>
<PointerDownThemeAnimation TargetName="ContentPresenter" />
</Storyboard>
</VisualState>
<VisualState x:Name="Selected">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="MultiSelectCheck"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="1" />
<DoubleAnimation Storyboard.TargetName="BorderRectangle"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="1" />
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderRectangle" Storyboard.TargetProperty="Stroke">
<DiscreteObjectKeyFrame KeyTime="0" Value="Black" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlForegroundBaseHighBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentBorder" Storyboard.TargetProperty="FocusVisualSecondaryBrush">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAccentBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentBorder" Storyboard.TargetProperty="FocusVisualSecondaryThickness">
<DiscreteObjectKeyFrame KeyTime="0" Value="2" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="MultiSelectSquare" Storyboard.TargetProperty="Background">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAccentBrush}" />
</ObjectAnimationUsingKeyFrames>
<PointerUpThemeAnimation Storyboard.TargetName="ContentPresenter" />
</Storyboard>
</VisualState>
<VisualState x:Name="PointerOverSelected">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="MultiSelectCheck"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="1" />
<DoubleAnimation Storyboard.TargetName="BorderRectangle"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="1" />
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderRectangle" Storyboard.TargetProperty="Stroke">
<DiscreteObjectKeyFrame KeyTime="0" Value="Black" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlForegroundBaseHighBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentBorder" Storyboard.TargetProperty="FocusVisualSecondaryBrush">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListAccentMediumBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentBorder" Storyboard.TargetProperty="FocusVisualSecondaryThickness">
<DiscreteObjectKeyFrame KeyTime="0" Value="2" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="MultiSelectSquare" Storyboard.TargetProperty="Background">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAccentBrush}" />
</ObjectAnimationUsingKeyFrames>
<PointerUpThemeAnimation Storyboard.TargetName="ContentPresenter" />
</Storyboard>
</VisualState>
<VisualState x:Name="PressedSelected">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="MultiSelectCheck"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="1" />
<DoubleAnimation Storyboard.TargetName="BorderRectangle"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="1" />
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderRectangle" Storyboard.TargetProperty="Stroke">
<DiscreteObjectKeyFrame KeyTime="0" Value="Black" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlForegroundBaseHighBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentBorder" Storyboard.TargetProperty="FocusVisualSecondaryBrush">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListAccentHighBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentBorder" Storyboard.TargetProperty="FocusVisualSecondaryThickness">
<DiscreteObjectKeyFrame KeyTime="0" Value="2" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="MultiSelectSquare" Storyboard.TargetProperty="Background">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAccentBrush}" />
</ObjectAnimationUsingKeyFrames>
<PointerDownThemeAnimation TargetName="ContentPresenter" />
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="DisabledStates">
<VisualState x:Name="Enabled" />
<VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="ContentBorder"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="{ThemeResource ListViewItemDisabledThemeOpacity}" />
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="MultiSelectStates">
<VisualState x:Name="MultiSelectDisabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="MultiSelectSquare" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible" />
<DiscreteObjectKeyFrame KeyTime="0:0:0.333" Value="Collapsed" />
</ObjectAnimationUsingKeyFrames>
<FadeOutThemeAnimation TargetName="MultiSelectSquare" />
</Storyboard>
</VisualState>
<VisualState x:Name="MultiSelectEnabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="MultiSelectSquare" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible" />
</ObjectAnimationUsingKeyFrames>
<FadeInThemeAnimation TargetName="MultiSelectSquare" />
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="DataVirtualizationStates">
<VisualState x:Name="DataAvailable" />
<VisualState x:Name="DataPlaceholder">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="PlaceholderTextBlock" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="PlaceholderRect" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="ReorderHintStates">
<VisualState x:Name="NoReorderHint" />
<VisualState x:Name="BottomReorderHint">
<Storyboard>
<DragOverThemeAnimation TargetName="ContentBorder" ToOffset="{ThemeResource GridViewItemReorderHintThemeOffset}" Direction="Bottom" />
</Storyboard>
</VisualState>
<VisualState x:Name="TopReorderHint">
<Storyboard>
<DragOverThemeAnimation TargetName="ContentBorder" ToOffset="{ThemeResource GridViewItemReorderHintThemeOffset}" Direction="Top" />
</Storyboard>
</VisualState>
<VisualState x:Name="RightReorderHint">
<Storyboard>
<DragOverThemeAnimation TargetName="ContentBorder" ToOffset="{ThemeResource GridViewItemReorderHintThemeOffset}" Direction="Right" />
</Storyboard>
</VisualState>
<VisualState x:Name="LeftReorderHint">
<Storyboard>
<DragOverThemeAnimation TargetName="ContentBorder" ToOffset="{ThemeResource GridViewItemReorderHintThemeOffset}" Direction="Left" />
</Storyboard>
</VisualState>
<VisualStateGroup.Transitions>
<VisualTransition To="NoReorderHint" GeneratedDuration="0:0:0.2" />
</VisualStateGroup.Transitions>
</VisualStateGroup>
<VisualStateGroup x:Name="DragStates">
<VisualState x:Name="NotDragging" />
<VisualState x:Name="Dragging">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="ContentBorder"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="{ThemeResource ListViewItemDragThemeOpacity}" />
<DragItemThemeAnimation TargetName="ContentBorder" />
</Storyboard>
</VisualState>
<VisualState x:Name="DraggingTarget" />
<VisualState x:Name="MultipleDraggingPrimary">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="MultiArrangeOverlayText"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="1" />
<DoubleAnimation Storyboard.TargetName="MultiArrangeOverlayTextBorder"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="1" />
<DoubleAnimation Storyboard.TargetName="MultiSelectSquare"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="0" />
<DoubleAnimation Storyboard.TargetName="MultiSelectCheck"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="0" />
<DoubleAnimation Storyboard.TargetName="ContentBorder"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="{ThemeResource ListViewItemDragThemeOpacity}" />
<FadeInThemeAnimation TargetName="MultiArrangeOverlayText" />
<FadeInThemeAnimation TargetName="MultiArrangeOverlayTextBorder" />
<DragItemThemeAnimation TargetName="ContentBorder" />
</Storyboard>
</VisualState>
<VisualState x:Name="MultipleDraggingSecondary" />
<VisualState x:Name="DraggedPlaceholder" />
<VisualState x:Name="Reordering">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="ContentBorder"
Storyboard.TargetProperty="Opacity"
Duration="0:0:0.240"
To="{ThemeResource ListViewItemReorderThemeOpacity}" />
</Storyboard>
</VisualState>
<VisualState x:Name="ReorderingTarget">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="ContentBorder"
Storyboard.TargetProperty="Opacity"
Duration="0:0:0.240"
To="{ThemeResource ListViewItemReorderTargetThemeOpacity}" />
<DoubleAnimation Storyboard.TargetName="ContentBorderScale"
Storyboard.TargetProperty="ScaleX"
Duration="0:0:0.240"
To="{ThemeResource ListViewItemReorderTargetThemeScale}" />
<DoubleAnimation Storyboard.TargetName="ContentBorderScale"
Storyboard.TargetProperty="ScaleY"
Duration="0:0:0.240"
To="{ThemeResource ListViewItemReorderTargetThemeScale}" />
</Storyboard>
</VisualState>
<VisualState x:Name="MultipleReorderingPrimary">
<Storyboard>
<!-- These two Opacity animations are required - the FadeInThemeAnimations
on the same elements animate an internal Opacity. -->
<DoubleAnimation Storyboard.TargetName="MultiArrangeOverlayText"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="1" />
<DoubleAnimation Storyboard.TargetName="MultiArrangeOverlayTextBorder"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="1" />
<DoubleAnimation Storyboard.TargetName="MultiSelectSquare"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="0" />
<DoubleAnimation Storyboard.TargetName="MultiSelectCheck"
Storyboard.TargetProperty="Opacity"
Duration="0"
To="0" />
<DoubleAnimation Storyboard.TargetName="ContentBorder"
Storyboard.TargetProperty="Opacity"
Duration="0:0:0.240"
To="{ThemeResource ListViewItemDragThemeOpacity}" />
<FadeInThemeAnimation TargetName="MultiArrangeOverlayText" />
<FadeInThemeAnimation TargetName="MultiArrangeOverlayTextBorder" />
</Storyboard>
</VisualState>
<VisualState x:Name="ReorderedPlaceholder">
<Storyboard>
<FadeOutThemeAnimation TargetName="ContentBorder" />
</Storyboard>
</VisualState>
<VisualState x:Name="DragOver">
<Storyboard>
<DropTargetItemThemeAnimation TargetName="ContentBorder" />
</Storyboard>
</VisualState>
<VisualStateGroup.Transitions>
<VisualTransition To="NotDragging" GeneratedDuration="0:0:0.2" />
</VisualStateGroup.Transitions>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
......
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Page.Resources>

Animation to flash a colour and come back to its original one

I'm developing a WPF application with C# and .NET Framework 4.7.
I have this animation:
<Style.Triggers>
<EventTrigger RoutedEvent="ContentChanged">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation Duration="0:0:0.1" Storyboard.TargetProperty="(Label.Background).(SolidColorBrush.Color)"
To="Yellow" AutoReverse="True" />
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
</Style.Triggers>
</Style>
I'm trying to change the background colour to yellow, and then come back to white again, but I think AutoReverse doesn't mean that.
I have also tried:
<BeginStoryboard>
<Storyboard>
<ColorAnimation Storyboard.TargetProperty="(Label.Background).(SolidColorBrush.Color)"
To="Yellow" FillBehavior="Stop" BeginTime="0:0:0" Duration="0:0:0.3"/>
<ColorAnimation Storyboard.TargetProperty="(Label.Background).(SolidColorBrush.Color)"
From="Yellow" To="White"
BeginTime="0:0:0.3" Duration="0:0:1"/>
</Storyboard>
</BeginStoryboard>
But, at the end, the background colour is yellow.
The effect I'm trying to achieve is to change background colour when Label's content changes, and then come back quickly to its original colour. I want to create a visual effect to notice which label has changed its content.
How can I change the colour to yellow and then change it to white again?

Add another ColorAnimation to the Storyboard and set its BeginTime property to a value greater than or equal to the Duration of the first one, e.g.:
<EventTrigger RoutedEvent="ContentChanged">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation BeginTime="0:0:0" Duration="0:0:1"
Storyboard.TargetProperty="(Label.Background).(SolidColorBrush.Color)"
To="Yellow"/>
<ColorAnimation BeginTime="0:0:1" Duration="0:0:1"
Storyboard.TargetProperty="(Label.Background).(SolidColorBrush.Color)"
To="White"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>

Reusable animations

I am a complete newbie to WPF and XAML.
I have created a simple fade-in and fade-out animation for a textbox:-
<Storyboard x:Key="storyFadeInOutTop" Name="storyFadeInOutTop">
<DoubleAnimation From="0" To="1" Duration="00:00:01"
Storyboard.TargetName="txtTopCredit"
Storyboard.TargetProperty="Opacity">
</DoubleAnimation>
<DoubleAnimation From="10" To="0" Duration="00:00:01" BeginTime="00:00:01"
Storyboard.TargetName="blurTop"
Storyboard.TargetProperty="Radius">
</DoubleAnimation>
<DoubleAnimation From="0" To="10" Duration="00:00:01" BeginTime="00:00:05"
Storyboard.TargetName="blurTop"
Storyboard.TargetProperty="Radius">
</DoubleAnimation>
<DoubleAnimation From="1" To="0" Duration="00:00:01" BeginTime="00:00:06"
Storyboard.TargetName="txtTopCredit"
Storyboard.TargetProperty="Opacity">
</DoubleAnimation>
</Storyboard>
What I would like to do is run this storyboard several times within the lifecyle of the animation.
Something like:-
<Storyboard>
<!-- (Run my fade-in-fade out with BeginTime of 00:00:00) -->
<StringAnimationUsingKeyFrames Duration="00:00:01" BeginTime="00:00:07"
Storyboard.TargetName="txtTopCredit"
Storyboard.TargetProperty="Text">
<DiscreteStringKeyFrame Value="Game design and concept by" KeyTime="0:0:1" />
</StringAnimationUsingKeyFrames>
<!-- (Run my fade-in-fade out again with BeginTime of 00:00:07) -->
<StringAnimationUsingKeyFrames Duration="00:00:01" BeginTime="00:00:07"
Storyboard.TargetName="txtTopCredit"
Storyboard.TargetProperty="Text">
<DiscreteStringKeyFrame Value="Look Ive changed to another credit" KeyTime="0:0:1" />
</StringAnimationUsingKeyFrames>
<!-- (etc etc) -->
</Storyboard>
I hope you understand the gist of what I'm trying to do. I know I could just add the code in the storyboard to each section of the above but that would be very tedious. Is there an elegant way to do this?

You should be able to set the RepeatBehavior property on the storyboard (inherited from Timeline)
<Storyboard x:Key="storyFadeInOutTop" Name="storyFadeInOutTop" RepeatBehavior="Forever">
<DoubleAnimation From="0" To="1" Duration="00:00:01"
Storyboard.TargetName="txtTopCredit"
Storyboard.TargetProperty="Opacity">
</DoubleAnimation>
<DoubleAnimation From="10" To="0" Duration="00:00:01" BeginTime="00:00:01"
Storyboard.TargetName="blurTop"
Storyboard.TargetProperty="Radius">
</DoubleAnimation>
<DoubleAnimation From="0" To="10" Duration="00:00:01" BeginTime="00:00:05"
Storyboard.TargetName="blurTop"
Storyboard.TargetProperty="Radius">
</DoubleAnimation>
<DoubleAnimation From="1" To="0" Duration="00:00:01" BeginTime="00:00:06"
Storyboard.TargetName="txtTopCredit"
Storyboard.TargetProperty="Opacity">
</DoubleAnimation>
</Storyboard>
RepeatBehavior can also be set to a positive integer.

Fade in hidden element

I can fade in / out using the following code
<Storyboard x:Name="EnterStoryboard">
<FadeOutThemeAnimation Storyboard.TargetName="PauseImage" />
</Storyboard>
<Storyboard x:Name="ExitStoryboard">
<FadeInThemeAnimation Storyboard.TargetName="PauseImage" />
</Storyboard>
To fadein:
EnterStoryboard.Begin();
To fadeout:
ExitStoryboard.Begin();
How can I fadein if the element is hidden from the beginning (I tried to set opacity=0 and visibility=collapsed).
EDIT:
based on AstiK solution, here's the new Storyboards (Instead of the built-in FadeInThemeAnimation / FadeOutThemeAnimation)
<Storyboard x:Name="EnterStoryboard">
<DoubleAnimation BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" From="0" To="1" Duration="00:00:00.3" Storyboard.TargetName="Image"/>
</Storyboard>
<Storyboard x:Name="ExitStoryboard">
<DoubleAnimation BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" From="1" To="0" Duration="00:00:00.3" Storyboard.TargetName="Image"/>
</Storyboard>

In your original approach, you should have kept Opacity ="0" and Visibility="Visible" from the beginning. I think you are looking for something like this:
<Grid Height="50" Width="100" Background="Red" Opacity="0">
<Grid.Style>
<Style TargetType="Grid">
<Style.Triggers>
<EventTrigger RoutedEvent="MouseEnter">
<BeginStoryboard>
<Storyboard>
<Storyboard >
<DoubleAnimation BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" From="0" To="1" Duration="00:00:03"/>
</Storyboard>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Style.Triggers>
</Style>
</Grid.Style>
</Grid>

use this:
<Storyboard x:Name="EnterStoryboard">
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Visibility)" Storyboard.TargetName="PauseImage">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<FadeOutThemeAnimation Storyboard.TargetName="PauseImage" />
set to collapsed in the same way for ExitStoryboard

how to show a window with sliding effect from right to left in WPF

I want to show all my windows except Main page from right to left transition style.
I tried this
<Window.Triggers>
<EventTrigger RoutedEvent="Window.Loaded">
<BeginStoryboard>
<!--<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="Opacity" From="0" To="1" Duration="0:0:2" FillBehavior="HoldEnd" />
</Storyboard>-->
<Storyboard >
<ThicknessAnimation Duration="0:0:.8" Storyboard.TargetProperty="Margin" To="-1200,0,-100,0" AccelerationRatio=".1"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Window.Triggers>
The same if i put stackpanel trigger it's coming from left to right inside the window.
Like wise i need for showing window itself.
How to achieve this ?

A DoubleAnimation on the Left property should do the trick
<Window.Triggers>
<EventTrigger RoutedEvent="Window.Loaded">
<BeginStoryboard>
<Storyboard >
<DoubleAnimation Duration="0:0:.8" Storyboard.TargetProperty="Left" From="1920" To="0" AccelerationRatio=".1"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Window.Triggers>

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