I am looking a way to animate the resizing of a window, lets say that I have a window with Height=300 and Width=300, I have 2 buttons, when I click the first button the window size must change to Height=600 and Width=600 and when I click the other button the window size must back to the original size, well I can do this simply changing the Height and Width properties, but I would like to use something like Storyboard - DoubleAnimation to give the impression that the window size is changing gradually.
I haven't used Storyboard - DoubleAnimation so if anyone can give me some tips I would appreciate it.
You cannot animate two properties in parallel Below code can help you animate the Height and Width of Window named myWindow
<Button Content="Click">
<Button.Triggers>
<EventTrigger RoutedEvent="Button.Click">
<EventTrigger.Actions>
<BeginStoryboard >
<Storyboard RepeatBehavior="Forever" AutoReverse="False">
<DoubleAnimation Storyboard.TargetName="myWindow"
Storyboard.TargetProperty = "(Window.Height)"
To="300" Duration="0:0:5"/>
<Storyboard RepeatBehavior="Forever" AutoReverse="False">
<DoubleAnimation Storyboard.TargetName="myWindow"
Storyboard.TargetProperty = "(Window.Width)"
To="300" Duration="0:0:5"/>
</Storyboard>
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
</Button.Triggers>
</Button>
Related
I have experienced a bit a weird behavior of the MahApps Window when I set the AllowsTransparency to true. What I am doing is to set the Opacity of the whole window to 0.4 when the mouse leaves the window. When the mouse returns to the window area, the opacity is set back to a value of 1.0.
This works fine unless I want to maximize the MahApps window. It doesn't maximize, but makes a weird blue rectangle around half of the screen, and the window remains the same size as before (The window is resizable... and without the AllowsTransparency (in code, after InitializeComponent) everything works fine).
I have uploaded a short .gif to show what I mean:
I set the opacity with following xaml:
<EventTrigger RoutedEvent="Window.MouseLeave">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="Opacity" To="0.4" Duration="0:0:0.1" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
<EventTrigger RoutedEvent="Window.MouseEnter">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="Opacity" To="1" Duration="0:0:0.1" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
I hope anyone knows a solution for this.
Thank you in advance for your help.
Ramon
I want to animate my window coming in from the right edge of the screen.
This is my xaml
<Window x:Class="SidebarTest.DockWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="DockWindow" Width="275"
ShowInTaskbar="False"
WindowStyle="None" ResizeMode="NoResize"
AllowsTransparency="True" Background="Transparent" >
<Window.Triggers>
<EventTrigger RoutedEvent="Window.Loaded">
<BeginStoryboard>
<Storyboard >
<DoubleAnimation Duration="0:0:1.5" Storyboard.TargetProperty="Width" From="0" To="275" AccelerationRatio=".1"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Window.Triggers>
<Grid Background="#2F2F2F">
</Grid>
But it animates the width from left to right instead of right to left.
Like this:
How can I change this so it comes in from the edge?
In your codebehind,
public DockWindow()
{
InitializeComponent();
this.Left = this.Width + SystemParameters.FullPrimaryScreenWidth;
}
Change your trigger to
<Window.Triggers>
<EventTrigger RoutedEvent="Window.Loaded">
<BeginStoryboard>
<Storyboard >
<DoubleAnimation Duration="0:0:1.5" Storyboard.TargetProperty="Left" To="10" AccelerationRatio=".1"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Window.Triggers>
Instead of trying to scale the width I might suggest leaving the width fixed and applying a TranslateTransform to the Window itself and in effect literally sliding it in from offscreen. A quick and dirty example provided below, you'll likely want to play with the value of the X coordinate and the KeyTime to get the effect just right but hopefully this is helpful to you. Cheers
<Window.RenderTransform>
<TranslateTransform x:Name="SlideTheThingy" X="1000" />
</Window.RenderTransform>
<Window.Triggers>
<EventTrigger RoutedEvent="Window.Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="SlideTheThingy"
Storyboard.TargetProperty="X">
<SplineDoubleKeyFrame KeyTime="0:0:1.25" Value="0" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Window.Triggers>
Windows are positioned by their Top-Left corner. So, when you animate your width and the position stays constant, the window will naturally grow to the right
In order to have the effect you're looking for, you also need to animate the position of the Window using the .Left property. If you want to snap the window to the right side of the screen and slide in from there, you need to start animating with a value of Left that matches your screen's width (and a zero-pixel width), and then animate to screenWidth - finalWidthOfWindow.
I actually figured it out, I needed to set the horizontal Alignment to right of the component I wanted to animate the size of. And it worked like a charm!
I want to achieve in XAML using event triggers where button's style (button and text gets bigger) change when mouse enter is triggered. Then when the mouse leave event is triggered, it will get back to it's previous style.
I have already worked out on that but my problem is when a button is clicked, the style for the mouse enter must be preserved unless other button is clicked.
<Style.Triggers>
<EventTrigger RoutedEvent="Button.MouseEnter">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="LayoutTransform.ScaleX"
To="2" Duration="0:0:0.25"/>
<DoubleAnimation Storyboard.TargetProperty="LayoutTransform.ScaleY"
To="2" Duration="0:0:0.25"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
<EventTrigger RoutedEvent="Button.MouseLeave">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="LayoutTransform.ScaleX"
To="1" Duration="0:0:0.25"/>
<DoubleAnimation Storyboard.TargetProperty="LayoutTransform.ScaleY"
To="1" Duration="0:0:0.25"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
</Style.Triggers>
Any help is appreciated. Thanks!
First of all, thank you for all you comments. They were great and correct but I have to find a way to implement it using the standard buttons (not radio or toggle).
I was able to figure this one out. So, I thought of extending the Control button to add something like a flag to determine if the button has been clicked then handled the OnMouseLeave event.
Here's my XAML, so far when someone enter any image in my Window, the animation pops up correctly.
<Style.Triggers>
<EventTrigger RoutedEvent="Image.MouseEnter">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Duration="0:0:0.25" From="1" To="1.2" AutoReverse="True"
Storyboard.TargetProperty="RenderTransform.ScaleX"/>
<DoubleAnimation Duration="0:0:0.1" From="1" To="1.2" AutoReverse="True"
Storyboard.TargetProperty="RenderTransform.ScaleY"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Style.Triggers>
Now I'd like to create another storyboard, one that fires on Image.MouseDown, however this time the animation should change the margin of a Grid called x:Name="container".
Can I access other controls properties inside a trigger? If so, how?
I can think of 2 options here:
Create an EventTrigger for your Grid and set its SourceName property to Image name that fires MouseDown or it`s parent;
Add another EventTrigger directly to the Image and set Storyboard.TargetName for animation to Grid`s name.
I'm triying to hide/show a stackpanel when I click in a button. This is what I made so far:
<Button.Triggers>
<EventTrigger RoutedEvent="Mouse.PreviewMouseDown">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="Height"
Storyboard.TargetName="PanelDeCampos"
From="{Binding ElementName=PanelDeCampos,Path=ActualHeight}"
To="0"
Duration="0:0:0.25" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Button.Triggers>
This animation works well, and it hides the panel when I click on it. But now I need to find a way to launch the reverse animation when the button is clicked again. Could I store the current state and decide what animation launch or something like this?
Thanks.
You can change your button to a ToggleButton and use the Checked and Unchecked routed events to set up your 2 storyboards:
<ToggleButton>
<ToggleButton.Triggers>
<EventTrigger RoutedEvent="Checked">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="Height"
Storyboard.TargetName="PanelDeCampos"
From="{Binding ElementName=PanelDeCampos,Path=ActualHeight}"
To="0"
Duration="0:0:0.25" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
<EventTrigger RoutedEvent="Unchecked">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="Height"
Storyboard.TargetName="PanelDeCampos"
From="0"
Duration="0:0:0.25"
To="1000" /> <!-- or whatever height you want-->
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</ToggleButton.Triggers>
</ToggleButton>
What about a little trick:
Together with the storyboard you have in place now, you are hidding the current button and setting another button (which looks the same) visible.
The other button has the reverse storyboard, and reverse button visibility settings.
With that you don't have to worry about a state, and you can do it only in XAML.
Other Idea would be to handle the click in the code behind, maintain a flag there, and trigger the storyboard from the code. As this is a view-only functionality I don't see a conflict with MVVM.