wpf - 从右到左动画宽度

Question

我想为从屏幕右边缘进入的窗口制作动画。

这是我的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>

但它是从左到右而不是从右到左设置宽度动画。像这样:

我如何更改它以使其从边缘进入？

Answer 1

在你的代码隐藏中，

public DockWindow()
    {
        InitializeComponent();
        this.Left = this.Width + SystemParameters.FullPrimaryScreenWidth;
    }

将触发器更改为

<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>