消息框的 Silverlight BusyIndicator 背景颜色
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【中文标题】消息框的 Silverlight BusyIndicator 背景颜色【英文标题】：Silverlight BusyIndicator background color for the message box 【发布时间】：2013-09-29 19:58:20 【问题描述】：在 Silverlight 中，我需要 BusyIndicator 的消息框是透明的。 我发现了一个同样的问题，但没有任何解决方案：
Silverlight BusyIndicator Background Colour
我的部分代码如下：
<toolkit:BusyIndicator x:Name="WorkingLayout" Height="80">
<toolkit:BusyIndicator.BusyContent>
<StackPanel>
<TextBlock Text="Wait please..." HorizontalAlignment="Center"></TextBlock>
<Button x:Name="CancelButton" HorizontalAlignment="Center" Content="Cancel" Width="100" Click="CancelButton_Click" />
</StackPanel>
</toolkit:BusyIndicator.BusyContent>
<!-- Rest of component code -->
</toolkit:BusyIndicator>
有没有办法让所有内容背景透明，包括包含消息的框，而不是默认的灰色渐变？
我尝试像这样将属性背景设置为透明：
<toolkit:BusyIndicator x:Name="WorkingLayout" Height="80" Background="Transparent">
但它没有用。
【问题讨论】：
【参考方案1】：你可以得到你想要的，你只需要编辑模板以满足你的需要。在表情混合中，
-
右键单击忙碌指示符，选择编辑模板，编辑副本
在模板内，找到进度条，删除
如果要删除灰色框，请将 Content Presenter 向上移动到更高的网格，并删除边框对象 这是我制作的一个示例 busyindicator，
<Setter Property="HorizontalAlignment" Value="Stretch"/>
<Setter Property="VerticalAlignment" Value="Stretch"/>
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="VerticalContentAlignment" Value="Stretch"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="toolkit:BusyIndicator">
<Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="VisibilityStates">
<VisualState x:Name="Hidden">
<Storyboard>
<ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.001" Storyboard.TargetName="busycontent" Storyboard.TargetProperty="(UIElement.Visibility)">
<DiscreteObjectKeyFrame KeyTime="00:00:00">
<DiscreteObjectKeyFrame.Value>
<Visibility>Collapsed</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.001" Storyboard.TargetName="overlay" Storyboard.TargetProperty="(UIElement.Visibility)">
<DiscreteObjectKeyFrame KeyTime="00:00:00">
<DiscreteObjectKeyFrame.Value>
<Visibility>Collapsed</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Visible">
<Storyboard>
<ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.001" Storyboard.TargetName="busycontent" Storyboard.TargetProperty="(UIElement.Visibility)">
<DiscreteObjectKeyFrame KeyTime="00:00:00">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.001" Storyboard.TargetName="overlay" Storyboard.TargetProperty="(UIElement.Visibility)">
<DiscreteObjectKeyFrame KeyTime="00:00:00">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="ellipse" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[2].(RotateTransform.Angle)" RepeatBehavior="Forever">
<EasingDoubleKeyFrame KeyTime="00:00:00" Value="0"/>
<EasingDoubleKeyFrame KeyTime="00:00:01" Value="360"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="BusyStatusStates">
<VisualState x:Name="Idle">
<Storyboard>
<ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.001" Storyboard.TargetName="content" Storyboard.TargetProperty="(Control.IsEnabled)">
<DiscreteObjectKeyFrame KeyTime="00:00:00">
<DiscreteObjectKeyFrame.Value>
<System:Boolean>True</System:Boolean>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Busy">
<Storyboard>
<ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.001" Storyboard.TargetName="content" Storyboard.TargetProperty="(Control.IsEnabled)">
<DiscreteObjectKeyFrame KeyTime="00:00:00">
<DiscreteObjectKeyFrame.Value>
<System:Boolean>False</System:Boolean>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<ContentControl x:Name="content" HorizontalContentAlignment="TemplateBinding HorizontalContentAlignment" VerticalContentAlignment="TemplateBinding VerticalContentAlignment" Content="TemplateBinding Content" ContentTemplate="TemplateBinding ContentTemplate"/>
<Rectangle x:Name="overlay" Style="TemplateBinding OverlayStyle"/>
<ContentPresenter x:Name="busycontent">
<Grid HorizontalAlignment="Center" VerticalAlignment="Center">
<Ellipse x:Name="ellipse" Margin="-13,-46,-15,-44" StrokeThickness="15" RenderTransformOrigin="0.5,0.5">
<Ellipse.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Ellipse.RenderTransform>
<Ellipse.Stroke>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="Black" Offset="0"/>
<GradientStop Color="Transparent" Offset="0.94"/>
</LinearGradientBrush>
</Ellipse.Stroke>
</Ellipse>
<ContentPresenter Margin="8,8,12,8" Content="TemplateBinding BusyContent" ContentTemplate="TemplateBinding BusyContentTemplate"/>
</Grid>
</ContentPresenter>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</UserControl.Resources>
<Grid x:Name="LayoutRoot" Background="White">
<toolkit:BusyIndicator Background="Transparent" Style="StaticResource BusyIndicatorStyle1" BorderThickness="0" x:Name="WorkingLayout" Height="80" Margin="65,110,123,110">
<!--<toolkit:BusyIndicator.OverlayStyle>
<Style TargetType="Rectangle">
<Setter Property="Fill" Value="White"/>
<Setter Property="Opacity" Value="0.5"/>
</Style>
</toolkit:BusyIndicator.OverlayStyle>-->
<toolkit:BusyIndicator.BusyContent>
<StackPanel>
<TextBlock Text="Wait please..." HorizontalAlignment="Center"></TextBlock>
<Button x:Name="CancelButton" HorizontalAlignment="Center" Content="Cancel" Width="100" />
</StackPanel>
</toolkit:BusyIndicator.BusyContent>
<!-- Rest of component code -->
</toolkit:BusyIndicator>
</Grid>
【讨论】：
谢谢，我使用这种方法来自定义 BusyIndicator 的宽度和高度。 你还在使用 silverlight 真的很棒【参考方案2】：将堆栈面板背景更改为透明。
【讨论】：
我将 Background 属性添加到 StackPanel 控件 (<StackPanel Background="Transparent">) 但没有任何改变。
在 Blend 中为忙碌指示器创建样式副本并修改样式以满足您的需要。 @LeoGC以上是关于消息框的 Silverlight BusyIndicator 背景颜色的主要内容，如果未能解决你的问题，请参考以下文章
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