Question

我创建了一个包含图像，文本和说明的用户控件。我希望动画它以在用户悬停时显示边框。我已经这样做了，但动画会在控件的每个元素上触发，因此边框不断出现并再次消失。

这是我控制的代码。请提前帮助并谢谢！

    <UserControl
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:i="http://schemas.microsoft.com/expression/2010/interactivity" xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions"
mc:Ignorable="d"
x:Class="SilverlightApplication2.CommandLinks"
d:DesignWidth="640" d:DesignHeight="480" Width="280" Cursor="Hand">
<UserControl.Resources>
    <Storyboard x:Name="CommandLinksMounseOver">
        <ColorAnimation Duration="0:0:0.1" To="#FFB0D0E0" Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" Storyboard.TargetName="brdBorder" d:IsOptimized="True"/>
        <DoubleAnimation Duration="0:0:0.1" To="1" Storyboard.TargetProperty="(UIElement.RenderTransform).(CompositeTransform.TranslateX)" Storyboard.TargetName="brdBorder" d:IsOptimized="True"/>
        <DoubleAnimation Duration="0:0:0.1" To="-1" Storyboard.TargetProperty="(UIElement.RenderTransform).(CompositeTransform.TranslateY)" Storyboard.TargetName="brdBorder" d:IsOptimized="True"/>
    </Storyboard>
    <Storyboard x:Name="CommandLinksMouseOut">
        <ColorAnimation Duration="0:0:0.1" To="#FFD9E8F0" Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" Storyboard.TargetName="brdBorder" d:IsOptimized="True"/>
        <DoubleAnimation Duration="0:0:0.1" To="-1" Storyboard.TargetProperty="(UIElement.RenderTransform).(CompositeTransform.TranslateX)" Storyboard.TargetName="brdBorder" d:IsOptimized="True"/>
        <DoubleAnimation Duration="0:0:0.1" To="1" Storyboard.TargetProperty="(UIElement.RenderTransform).(CompositeTransform.TranslateY)" Storyboard.TargetName="brdBorder" d:IsOptimized="True"/>
    </Storyboard>
</UserControl.Resources>
<i:Interaction.Triggers>
    <i:EventTrigger EventName="MouseEnter">
        <ei:ControlStoryboardAction x:Name="OnMouseOut" Storyboard="{StaticResource CommandLinksMouseOut}"/>
        <ei:ControlStoryboardAction x:Name="OnMouseOver" Storyboard="{StaticResource CommandLinksMounseOver}"/>
    </i:EventTrigger>
</i:Interaction.Triggers>

<Grid x:Name="LayoutRoot">
    <Border x:Name="brdBorder" Margin="0" CornerRadius="3" BorderThickness="1" Padding="8" BorderBrush="#00B3D1E1" RenderTransformOrigin="0.5,0.5">
        <Border.RenderTransform>
            <CompositeTransform/>
        </Border.RenderTransform>
        <Grid>
            <Image x:Name="imgIcon" HorizontalAlignment="Left" Width="32" Margin="0" Source="Universal Binary.png" VerticalAlignment="Top" RenderTransformOrigin="0.5,0.5" Height="32">
                <Image.RenderTransform>
                    <CompositeTransform/>
                </Image.RenderTransform>
            </Image>
            <TextBlock x:Name="txtMainInstruction" TextWrapping="Wrap" Text="Main instruction text" VerticalAlignment="Top" Padding="0" Foreground="#FF2C5A88" FontSize="13.333" FontFamily="Verdana" Margin="40,0,0,0" RenderTransformOrigin="0.5,0.5">
                <TextBlock.RenderTransform>
                    <CompositeTransform/>
                </TextBlock.RenderTransform>
            </TextBlock>
            <TextBlock x:Name="txtDescription" TextWrapping="Wrap" Text="Enter the description here if needed" VerticalAlignment="Top" Foreground="#FF666666" FontSize="12" FontFamily="Verdana" Margin="40,20,0,0" RenderTransformOrigin="0.5,0.5">
                <TextBlock.RenderTransform>
                    <CompositeTransform/>
                </TextBlock.RenderTransform>
            </TextBlock>
        </Grid>
    </Border>
</Grid>

Answer 1

除了设置透明背景（我把它放在brdBorder元素上）之外，你的触发器也存在问题。他们应该是这样的：

<i:Interaction.Triggers>
    <i:EventTrigger EventName="MouseLeave">
        <ei:ControlStoryboardAction x:Name="OnMouseOut" Storyboard="{StaticResource CommandLinksMouseOut}"/>
    </i:EventTrigger>
    <i:EventTrigger EventName="MouseEnter">
        <ei:ControlStoryboardAction x:Name="OnMouseOver" Storyboard="{StaticResource CommandLinksMounseOver}"/>
    </i:EventTrigger>
</i:Interaction.Triggers>

Answer 2

控件没有背景。因此，只有文本和图像被点击测试可见。在LayoutRoot上尝试Background =“＃00000000”（透明）。

如何仅激活一次故事板而不是用户控件的所有元素（Silverlight + Expression Blend）

2 个答案: