Question

我正在寻找一个示例Style来将Silverlight BusyIndicator的外观更改为更像AJAX应用程序的“旋转轮”外观。

围绕谷歌的圈子会产生一些链接，人们正在创建新的控件来实现相同的目标（我怀疑它们是在BusyIndicator之前预定的）但是如果可能的话，我宁愿给BusyIndicator上皮。

有人告诉我正确的方向吗？

由于

标记

Answer 1

我是从Silverlight Toolkit

创建自己的自定义BusyIndicator

以下是您的需求：

在样式文件中设置System命名空间：

的xmlns：系统= “CLR-命名空间：系统;装配= mscorlib程序”

将样式/模板放在样式文件中：

<ControlTemplate x:Key="AjaxBusyIndicatorControlTemplate" TargetType="toolkit:BusyIndicator">
    <Grid x:Name="ColorLayer">               
        <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="VisibilityStates">
                <VisualState x:Name="Hidden">
                    <Storyboard>
                        <ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.001" Storyboard.TargetProperty="(UIElement.Visibility)" Storyboard.TargetName="busycontent">
                            <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.TargetProperty="(UIElement.Visibility)" Storyboard.TargetName="overlay">
                            <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.TargetProperty="(UIElement.Visibility)" Storyboard.TargetName="busycontent">
                            <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.TargetProperty="(UIElement.Visibility)" Storyboard.TargetName="overlay">
                            <DiscreteObjectKeyFrame KeyTime="00:00:00">
                                <DiscreteObjectKeyFrame.Value>
                                    <Visibility>Visible</Visibility>
                                </DiscreteObjectKeyFrame.Value>
                            </DiscreteObjectKeyFrame>
                        </ObjectAnimationUsingKeyFrames>
                    </Storyboard>
                </VisualState>
            </VisualStateGroup>
            <VisualStateGroup x:Name="BusyStatusStates">
                <VisualState x:Name="Idle">
                    <Storyboard>
                        <ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.001" Storyboard.TargetProperty="(Control.IsEnabled)" Storyboard.TargetName="content">
                            <DiscreteObjectKeyFrame KeyTime="00:00:00">
                                <DiscreteObjectKeyFrame.Value>
                                    <System:Boolean>True</System:Boolean>
                                </DiscreteObjectKeyFrame.Value>
                            </DiscreteObjectKeyFrame>
                        </ObjectAnimationUsingKeyFrames>
                    </Storyboard>
                </VisualState>
                <VisualState x:Name="Busy">
                    <Storyboard RepeatBehavior="Forever" AutoReverse="False">
                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(CompositeTransform.Rotation)" Storyboard.TargetName="loader">
                            <EasingDoubleKeyFrame KeyTime="0" Value="0"/>
                            <EasingDoubleKeyFrame KeyTime="0:0:1" Value="359.999"/>
                        </DoubleAnimationUsingKeyFrames>
                        <ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.001" Storyboard.TargetProperty="(Control.IsEnabled)" Storyboard.TargetName="content">
                            <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" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>
        <Rectangle x:Name="overlay" Style="{TemplateBinding OverlayStyle}"/>
        <ContentPresenter x:Name="busycontent">
            <Path x:Name="loader" Height="19" Width="19" Canvas.Left="0.5" Canvas.Top="0.5" Stretch="Fill" UseLayoutRounding="False" Stroke="Black" StrokeThickness="0.2" RenderTransformOrigin="0.5,0.5"
                Data="M9.5,3 C5.9101491,3 3,5.9101491 3,9.5 C3,13.08985 5.9101491,16 9.5,16 C13.08985,16 16,13.08985 16,9.5 C16,5.9101491 13.08985,3 9.5,3 z M9.5,0 C14.746705,0 19,4.2532949 19,9.5 C19,14.746705 14.746705,19 9.5,19 C4.2532949,19 0,14.746705 0,9.5 C0,4.2532949 4.2532949,0 9.5,0 z">
                <Path.RenderTransform>
                    <CompositeTransform/>
                </Path.RenderTransform>
                <Path.Fill>
                    <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                        <GradientStop Color="#FF0089FF" Offset="0"/>
                        <GradientStop Color="White" Offset="1"/>
                    </LinearGradientBrush>
                </Path.Fill>
            </Path>
        </ContentPresenter>
    </Grid>
</ControlTemplate>

<Style x:Key="AjaxBusyIndicator" TargetType="toolkit:BusyIndicator"  >
    <Setter Property="Template" Value="{StaticResource AjaxBusyIndicatorControlTemplate}"/>
</Style>

在您的XAML中使用它：

<Grid x:Name="LayoutRoot" Background="White">
    <toolkit:BusyIndicator IsBusy="True" Style="{StaticResource AjaxBusyIndicator}">
        <TextBox Text="TEST test test" />
    </toolkit:BusyIndicator>
</Grid>

Answer 2

确实是一个常见的场景.. Silverlight开发人员通常使用 http://blogs.msdn.com/b/brada/archive/2009/03/20/silverlight-3-activity-control.aspx这种控制。但正如你的要求是让它像AJAX一样我认为这个链接可能会有所帮助： http://chrisa.wordpress.com/2008/10/09/a-wait-indicator-in-silverlight/

以下是有关如何为忙碌指示器自定义数据模板的一些提示： http://www.jeff.wilcox.name/2009/11/busy-indicator-control/

问候。

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