Silverlight BusyIndi​​cator 的 Ajax 风格样式？

Question

我正在寻找一个示例样式，以将 Silverlight BusyIndi​​cator 的外观更改为更像 AJAX 应用程序的“旋转轮”外观。

绕谷歌一圈会产生一些链接，这些链接指向人们正在创建新控件以实现相同目的的地方（我怀疑他们早于 BusyIndi​​cator），但如果可能的话，我宁愿剥去 BusyIndi​​cator 的皮肤。

有人帮我指出正确的方向吗？

谢谢

标记

Answer 1

我使用 Silverlight Toolkit 制作了自己的自定义 BusyIndicator

这是你需要的：

1. 在样式文件中设置系统命名空间：

   xmlns:System="clr-namespace:System;assembly=mscorlib"

2. 将样式/模板放入您的样式文件中：

   <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>
   

3. 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

这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这种类型的控件。但由于您的要求是像 AJAX 一样拥有它，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/

以下是一些关于如何为繁忙指标自定义数据模板的提示： http://www.jeff.wilcox.name/2009/11/busy-indicator-control/

问候。