I have a DoubleAnimation for a waiting control and it repeats forever. But I want to set time between every repeats. How can I do that?
My animation is:
<DoubleAnimation Storyboard.TargetName="rect1"
Storyboard.TargetProperty="Height"
To="10" BeginTime="0:0:0" Duration="0:0:0.3"
AutoReverse="True" RepeatBehavior="Forever"/>
Set a Duration on the enclosing Storyboard:
<Storyboard AutoReverse="True" RepeatBehavior="Forever" Duration="0:0:1">
<DoubleAnimation Storyboard.TargetName="rect1"
Storyboard.TargetProperty="Height"
To="10" Duration="0:0:0.3"/>
</Storyboard>
Related
So i have this Grid:
<Grid x:Name="notificarionGrid" Visibility="Collapsed"/>
And i want to change its Visibility value with animation, so i have this 2 Storyboard:
<Storyboard x:Key="fadeIn">
<ObjectAnimationUsingKeyFrames BeginTime="0:0:0" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation BeginTime="0:0:0.0" Storyboard.TargetProperty="Opacity" From="0" To="1" Duration="0:0:2.0"/>
</Storyboard>
<Storyboard x:Key="fadeOut">
<DoubleAnimation BeginTime="0:0:0:0" Storyboard.TargetProperty="Opacity" From="1" To="0" Duration="0:0:2.0"/>
</Storyboard>
Now this code works fine but the only problem here is that after the fadeOut my Grid Visibility become Hidden instead of Collapsed what cause some elements become not responsible under this Grid.
Any idea how to switch my Grid again to Collapsed ?
You could handle the Completed event for the Storyboard:
private void Storyboard_Completed(object sender, EventArgs e)
{
notificarionGrid.Visibility = Visibility.Collapsed;
}
XAML:
<Storyboard x:Key="fadeOut" Completed="Storyboard_Completed">
<DoubleAnimation BeginTime="0:0:0" Storyboard.TargetProperty="Opacity" From="1" To="0" Duration="0:0:2.0"/>
</Storyboard>
Or add an ObjectAnimationUsingKeyFrames to your Storyboard:
<Storyboard x:Key="fadeOut">
<DoubleAnimation BeginTime="0:0:0" Storyboard.TargetProperty="Opacity" From="1" To="0" Duration="0:0:2.0"/>
<ObjectAnimationUsingKeyFrames BeginTime="0:0:2" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Collapsed</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
Add another ObjectAnimationUsingKeyFrames for the Visibility with an appropriate BeginTime:
<Storyboard x:Key="fadeOut">
<DoubleAnimation Storyboard.TargetProperty="Opacity"
To="0" Duration="0:0:2"/>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility"
BeginTime="0:0:2">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Collapsed</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
So i have this Grid:
<Grid x:Name="notificarionGrid" Visibility="Hidden"/>
And i want to change its Visibility value with animation, so i have this 2 Storyboard:
<Storyboard x:Key="fadeIn">
<ObjectAnimationUsingKeyFrames BeginTime="0:0:0" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation BeginTime="0:0:0.0" Storyboard.TargetProperty="Opacity" From="0" To="1" Duration="0:0:2.0"/>
</Storyboard>
<Storyboard x:Key="fadeOut">
<ObjectAnimationUsingKeyFrames BeginTime="0:0:0" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Hidden</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation BeginTime="0:0:5.0" Storyboard.TargetProperty="Opacity" From="1" To="0" Duration="0:0:2.0"/>
</Storyboard>
Code behind:
FADE IN
Storyboard storyboard = Resources["fadeIn"] as Storyboard;
storyboard.Begin(notificarionGrid);
FADE OUT
Storyboard storyboard = Resources["fadeOut"] as Storyboard;
storyboard.Begin(notificarionGrid);
The only problem is that in fade out the Grid is disappear immediately not like fade in that takes 2 seconds.
What i am doing wrong ?
Remove the ObjectAnimationUsingKeyFrames that sets the Visibility property to Hidden from the Storyboard:
<Storyboard x:Key="fadeOut">
<DoubleAnimation BeginTime="0:0:0" Storyboard.TargetProperty="Opacity" From="1" To="0" Duration="0:0:2.0"/>
</Storyboard>
If you hide the element before you animate its Opacity property, you won't be able to see the fade out animation.
I am working with the WPF animations using Storyboards. What I want is to fade out all the content of the page as soon as my textbox gets focus, and to fade in everything back as soon as the focus is removed from the textbox. To do that, I have the following XAML with no code behind.
<Page.Triggers>
<EventTrigger RoutedEvent="TextBox.GotFocus">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="Grid1"
Storyboard.TargetProperty="Opacity"
From="1" To="0.1" Duration="0:0:0.2"
AutoReverse="False" >
</DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
<EventTrigger RoutedEvent="TextBox.LostFocus">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="Grid1"
Storyboard.TargetProperty="Opacity"
From="0.1" To="1" Duration="0:0:0.2"
AutoReverse="False">
</DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
To move focus out of textbox, I have the following button:
<Button
Name="SearchButton"
Height="30" Width="30"
Grid.Column="1"
Focusable="True"
IsHitTestVisible="True"
Style="{StaticResource SearchButton}"
Padding="3,3,3,3"
Margin="3,3,3,3" Click="Button_Click"/>
When I run the app, clicking on the textbox makes the fade out work fine. But when I click on the button, the fade in does not kick in.
Can anyone please give me some insights?
You should place your triggers in the TextBox directly, not on the Page level:
<TextBox>
<TextBox.Triggers>
<EventTrigger RoutedEvent="TextBox.GotFocus">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="Grid1"
Storyboard.TargetProperty="Opacity"
From="1" To="0.1" Duration="0:0:0.2"
FillBehavior="HoldEnd">
</DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
<EventTrigger RoutedEvent="TextBox.LostFocus">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="Grid1"
Storyboard.TargetProperty="Opacity"
From="0.1" To="1" Duration="0:0:0.2"
FillBehavior="Stop">
</DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</TextBox.Triggers>
</TextBox>
Otherwise, the storyboards will be triggered for each and every GotFocus and LostFocus routed event of each UIElement on the Page because of these events' bubbling strategy.
I have the following code:
<Storyboard x:Key="CounterStoryboard" >
<!-- Panel appear -->
<ObjectAnimationUsingKeyFrames Duration="0:0:0" Storyboard.TargetName="CounterPanel" Storyboard.TargetProperty="(UIElement.Visibility)">
<DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Visible}"/>
</ObjectAnimationUsingKeyFrames>
<!-- 3-->
<DoubleAnimation
Storyboard.TargetProperty="(UIElement.Opacity)"
Storyboard.TargetName="CounterLabel3" From="1" To="0" Duration="0:0:1" BeginTime="0:0:0">
</DoubleAnimation>
<!-- 2 -->
<DoubleAnimation
Storyboard.TargetProperty="(UIElement.Opacity)"
Storyboard.TargetName="CounterLabel2" From="0" To="1" Duration="0:0:0" BeginTime="0:0:1">
</DoubleAnimation>
<DoubleAnimation
Storyboard.TargetProperty="(UIElement.Opacity)"
Storyboard.TargetName="CounterLabel2" From="1" To="0" Duration="0:0:1" BeginTime="0:0:1">
</DoubleAnimation>
<!-- 1 -->
<DoubleAnimation
Storyboard.TargetProperty="(UIElement.Opacity)"
Storyboard.TargetName="CounterLabel1" From="0" To="1" Duration="0:0:0" BeginTime="0:0:2">
</DoubleAnimation>
<DoubleAnimation
Storyboard.TargetProperty="(UIElement.Opacity)"
Storyboard.TargetName="CounterLabel1" From="1" To="0" Duration="0:0:1" BeginTime="0:0:2">
</DoubleAnimation>
<!-- Panel disappear -->
<ObjectAnimationUsingKeyFrames Duration="0:0:0" Storyboard.TargetName="CounterPanel" Storyboard.TargetProperty="(UIElement.Visibility)">
<DiscreteObjectKeyFrame KeyTime="0:0:3" Value="{x:Static Visibility.Collapsed}"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
This acts like a counter, from 3 to 1. Everything works fine, except from the last part. The Panel disappear is not working. It should make the panel invisible, but it's still there...
What I'm doing wrong?
NOTE: I call the storyboard like this:
sb = (Storyboard)FindResource("CounterStoryboard");
sb = sb.Clone();
sb.Completed += sb_Completed;
sb.Begin(this);
Your last animation has a Duration of 0:0:0 yet you set KeyTime to 0:0:3 which is beyond duration time. You can change KeyTime to 0:0:0 and set BeginTime to 0:0:3
<ObjectAnimationUsingKeyFrames Duration="0:0:0" BeginTime="0:0:3" Storyboard.TargetName="CounterPanel" Storyboard.TargetProperty="(UIElement.Visibility)">
<DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Collapsed}"/>
</ObjectAnimationUsingKeyFrames>
I am developing an application in which I have a user control inside a window. I want to perform some growing animation on the size of that control when it gets attached to the window.
Can anyone help me with it ??
In your styling:
<YourControl.Triggers>
<EventTrigger RoutedEvent="YourControl.Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="Width" From="0" To="150" Duration="0:0:5" />
<DoubleAnimation Storyboard.TargetProperty="Height" From="0" To="100" Duration="0:0:5" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</YourControl.Triggers>