Silverlight 自定义 BusyIndicator

<UserControl x:Class="Test.MainPage"
    xmlns="http://scheR_608_11845@as.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://scheR_608_11845@as.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://scheR_608_11845@as.microsoft.com/expression/blend/2008"
    xmlns:@H_560_21@mc="http://scheR_608_11845@as.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    xmlns:sys="clr-namespace:System;assembly=mscorlib"
    d:DesignHeight="300" d:DesignWidth="400">
    <UserControl.resources>
        <sys:String x:Key="data">@H_560_21@m 0,0 L-2,0 L -2,-0 L0,-10 L 2,0 Z</sys:String>
        <Storyboard x:Name="Storyboard1">
            <DoubleAnimation BeginTime="0:0:0"  Duration="0:0:1" repeatBehavior="Forever"   From="1" To="0.2" Storyboard.TargetProperty="(UIElement.opacity)" Storyboard.TargetName="p1"/>
            <DoubleAnimation BeginTime="0:0:0.8" Duration="0:0:1" repeatBehavior="Forever"   From="1" To="0.2"  Storyboard.TargetProperty="(UIElement.opacity)" Storyboard.TargetName="p2"/>
            <DoubleAnimation BeginTime="0:0:0.16" Duration="0:0:1" repeatBehavior="Forever"   From="1" To="0.2"  Storyboard.TargetProperty="(UIElement.opacity)" Storyboard.TargetName="p3" />
            <DoubleAnimation BeginTime="0:0:0.24" Duration="0:0:1" repeatBehavior="Forever"   From="1" To="0.2"  Storyboard.TargetProperty="(UIElement.opacity)" Storyboard.TargetName="p4" />
            <DoubleAnimation BeginTime="0:0:0.32" Duration="0:0:1" repeatBehavior="Forever"   From="1" To="0.2"  Storyboard.TargetProperty="(UIElement.opacity)" Storyboard.TargetName="p5" />
            <DoubleAnimation BeginTime="0:0:0.40" Duration="0:0:1" repeatBehavior="Forever"   From="1" To="0.2"  Storyboard.TargetProperty="(UIElement.opacity)" Storyboard.TargetName="P6" />
            <DoubleAnimation BeginTime="0:0:0.48" Duration="0:0:1" repeatBehavior="Forever"   From="1" To="0.2" Storyboard.TargetProperty="(UIElement.opacity)" Storyboard.TargetName="P7" />
            <DoubleAnimation BeginTime="0:0:0.56" Duration="0:0:1" repeatBehavior="Forever"   From="1" To="0.2"  Storyboard.TargetProperty="(UIElement.opacity)" Storyboard.TargetName="p8" />
            <DoubleAnimation BeginTime="0:0:0.64" Duration="0:0:1" repeatBehavior="Forever"   From="1" To="0.2"  Storyboard.TargetProperty="(UIElement.opacity)" Storyboard.TargetName="p9" />
            <DoubleAnimation BeginTime="0:0:0.72" Duration="0:0:1" repeatBehavior="Forever"   From="1" To="0.2"  Storyboard.TargetProperty="(UIElement.opacity)" Storyboard.TargetName="p10" />
            <DoubleAnimation BeginTime="0:0:0.80" Duration="0:0:1" repeatBehavior="Forever"   From="1" To="0.2"  Storyboard.TargetProperty="(UIElement.opacity)" Storyboard.TargetName="p11" />
            <DoubleAnimation BeginTime="0:0:0.88" Duration="0:0:1" repeatBehavior="Forever"   From="1" To="0.2"  Storyboard.TargetProperty="(UIElement.opacity)" Storyboard.TargetName="p12" />
        </Storyboard>
    </UserControl.resources>
    <Grid x:Name="LayoutRoot" BACkground="White" Margin="100">

 void @H_560_21@mainPage_Loaded(object sender, RoutedEventArgs e)
        {
            Storyboard1.Begin();
        }
        <Path x:Name="p1" Data="{Binding source={Staticresource data}}" @R_404_1633@="Gray" Fill="Black" Opacity="0.2">
            <Path.RenderTransform>
                <TransformGroup>
                    <TranslateTransform Y="-8"/>
                    <RotateTransform Angle="0"/>
                </TransformGroup>
            </Path.RenderTransform>
        </Path>
        <Path x:Name="p2" Data="{Binding source={Staticresource data}}" @R_404_1633@="Gray" Fill="Black" Opacity="0.2">
            <Path.RenderTransform>
                <TransformGroup>
                    <TranslateTransform Y="-8"/>
                    <RotateTransform Angle="30"/>
                </TransformGroup>
            </Path.RenderTransform>
        </Path>
        <Path x:Name="p3" Data="{Binding source={Staticresource data}}" @R_404_1633@="Gray" Fill="Black" Opacity="0.2">
            <Path.RenderTransform>
                <TransformGroup>
                    <TranslateTransform Y="-8"/>
                    <RotateTransform Angle="60"/>
                </TransformGroup>
            </Path.RenderTransform>
        </Path>
        <Path x:Name="p4" Data="{Binding source={Staticresource data}}" @R_404_1633@="Gray" Fill="Black" Opacity="0.2">
            <Path.RenderTransform>
                <TransformGroup>
                    <TranslateTransform Y="-8"/>
                    <RotateTransform Angle="90"/>
                </TransformGroup>
            </Path.RenderTransform>
        </Path>
        <Path x:Name="p5" Data="{Binding source={Staticresource data}}" @R_404_1633@="Gray" Fill="Black" Opacity="0.2">
            <Path.RenderTransform>
                <TransformGroup>
                    <TranslateTransform Y="-8"/>
                    <RotateTransform Angle="120"/>
                </TransformGroup>
            </Path.RenderTransform>
        </Path>
        <Path x:Name="P6" Data="{Binding source={Staticresource data}}" @R_404_1633@="Gray" Fill="Black" Opacity="0.2">
            <Path.RenderTransform>
                <TransformGroup>
                    <TranslateTransform Y="-8"/>
                    <RotateTransform Angle="150"/>
                </TransformGroup>
            </Path.RenderTransform>
        </Path>
        <Path x:Name="P7" Data="{Binding source={Staticresource data}}" @R_404_1633@="Gray" Fill="Black" Opacity="0.2">
            <Path.RenderTransform>
                <TransformGroup>
                    <TranslateTransform Y="-8"/>
                    <RotateTransform Angle="180"/>
                </TransformGroup>
            </Path.RenderTransform>
        </Path>
        <Path x:Name="p8" Data="{Binding source={Staticresource data}}" @R_404_1633@="Gray" Fill="Black" Opacity="0.2">
            <Path.RenderTransform>
                <TransformGroup>
                    <TranslateTransform Y="-8"/>
                    <RotateTransform Angle="210"/>
                </TransformGroup>
            </Path.RenderTransform>
        </Path>
        <Path x:Name="p9" Data="{Binding source={Staticresource data}}" @R_404_1633@="Gray" Opacity="0.2" Fill="Black">
            <Path.RenderTransform>
                <TransformGroup>
                    <TranslateTransform Y="-8"/>
                    <RotateTransform Angle="240"/>
                </TransformGroup>
            </Path.RenderTransform>
        </Path>
        <Path x:Name="p10" Data="{Binding source={Staticresource data}}" @R_404_1633@="Gray" Fill="Black" Opacity="0.2">
            <Path.RenderTransform>
                <TransformGroup>
                    <TranslateTransform Y="-8"/>
                    <RotateTransform Angle="270"/>
                </TransformGroup>
            </Path.RenderTransform>
        </Path>
        <Path x:Name="p11" Data="{Binding source={Staticresource data}}" @R_404_1633@="Gray" Fill="Black" Opacity="0.2">
            <Path.RenderTransform>
                <TransformGroup>
                    <TranslateTransform Y="-8"/>
                    <RotateTransform Angle="300"/>
                </TransformGroup>
            </Path.RenderTransform>
        </Path>
        <Path x:Name="p12" Data="{Binding source={Staticresource data}}" @R_404_1633@="Gray" Fill="Black" Opacity="0.2">
            <Path.RenderTransform>
                <TransformGroup>
                    <TranslateTransform Y="-8"/>
                    <RotateTransform Angle="330"/>
                </TransformGroup>
            </Path.RenderTransform>
        </Path>
    </Grid>
 
</UserControl>