在一些项目中，难免会有耗时的加载,如果加载时没有提示,给人一种假死的感觉，很不友好，那么现在福利来啦，WPF版的模态窗体，先上效果图

实际效果指针是转动的,话不多说，一大批干货来袭

XMAL的代码

  1.  Window x:Class="ZhiHeng.IntelligentExpress.WpfUI.Views.CoverForm"
  2.          xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  3.          xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  4.          xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
  5.          Title="CoverForm"   x:Name="Window"
  6.          Style="{StaticResource WindowsStyle}" Opacity="0.5">
  7.      <Window.Resources>
  8.          <Storyboard x:Key="Storyboard1">
  9.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" RepeatBehavior="Forever" Storyboard.TargetName="ellipse" Storyboard.TargetProperty="(UIElement.Opacity)">
  10.                  <SplineDoubleKeyFrame KeyTime=" />
  11.                  <SplineDoubleKeyFrame KeyTime=" />
  12.                  <SplineDoubleKeyFrame KeyTime=" />
  13.                  <SplineDoubleKeyFrame KeyTime=" />
  14.                  <SplineDoubleKeyFrame KeyTime=" />
  15.              </DoubleAnimationUsingKeyFrames>
  16.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse1">
  17.                  <SplineDoubleKeyFrame KeyTime=" />
  18.                  <SplineDoubleKeyFrame KeyTime=" />
  19.                  <SplineDoubleKeyFrame KeyTime=" />
  20.                  <SplineDoubleKeyFrame KeyTime=" />
  21.                  <SplineDoubleKeyFrame KeyTime=" />
  22.              </DoubleAnimationUsingKeyFrames>
  23.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse2">
  24.                  <SplineDoubleKeyFrame KeyTime=" />
  25.                  <SplineDoubleKeyFrame KeyTime=" />
  26.                  <SplineDoubleKeyFrame KeyTime=" />
  27.                  <SplineDoubleKeyFrame KeyTime=" />
  28.                  <SplineDoubleKeyFrame KeyTime=" />
  29.              </DoubleAnimationUsingKeyFrames>
  30.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse3">
  31.                  <SplineDoubleKeyFrame KeyTime=" />
  32.                  <SplineDoubleKeyFrame KeyTime=" />
  33.                  <SplineDoubleKeyFrame KeyTime=" />
  34.                  <SplineDoubleKeyFrame KeyTime=" />
  35.                  <SplineDoubleKeyFrame KeyTime=" />
  36.              </DoubleAnimationUsingKeyFrames>
  37.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse4">
  38.                  <SplineDoubleKeyFrame KeyTime=" />
  39.                  <SplineDoubleKeyFrame KeyTime=" />
  40.                  <SplineDoubleKeyFrame KeyTime=" />
  41.                  <SplineDoubleKeyFrame KeyTime=" />
  42.                  <SplineDoubleKeyFrame KeyTime=" />
  43.              </DoubleAnimationUsingKeyFrames>
  44.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse5">
  45.                  <SplineDoubleKeyFrame KeyTime=" />
  46.                  <SplineDoubleKeyFrame KeyTime=" />
  47.                  <SplineDoubleKeyFrame KeyTime=" />
  48.                  <SplineDoubleKeyFrame KeyTime=" />
  49.                  <SplineDoubleKeyFrame KeyTime=" />
  50.              </DoubleAnimationUsingKeyFrames>
  51.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse6">
  52.                  <SplineDoubleKeyFrame KeyTime=" />
  53.                  <SplineDoubleKeyFrame KeyTime=" />
  54.                  <SplineDoubleKeyFrame KeyTime=" />
  55.                  <SplineDoubleKeyFrame KeyTime=" />
  56.                  <SplineDoubleKeyFrame KeyTime=" />
  57.              </DoubleAnimationUsingKeyFrames>
  58.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse7">
  59.                  <SplineDoubleKeyFrame KeyTime=" />
  60.                  <SplineDoubleKeyFrame KeyTime=" />
  61.                  <SplineDoubleKeyFrame KeyTime=" />
  62.                  <SplineDoubleKeyFrame KeyTime=" />
  63.                  <SplineDoubleKeyFrame KeyTime=" />
  64.              </DoubleAnimationUsingKeyFrames>
  65.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse8">
  66.                  <SplineDoubleKeyFrame KeyTime=" />
  67.                  <SplineDoubleKeyFrame KeyTime=" />
  68.                  <SplineDoubleKeyFrame KeyTime=" />
  69.                  <SplineDoubleKeyFrame KeyTime=" />
  70.                  <SplineDoubleKeyFrame KeyTime=" />
  71.              </DoubleAnimationUsingKeyFrames>
  72.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse9">
  73.                  <SplineDoubleKeyFrame KeyTime=" />
  74.                  <SplineDoubleKeyFrame KeyTime=" />
  75.                  <SplineDoubleKeyFrame KeyTime=" />
  76.                  <SplineDoubleKeyFrame KeyTime=" />
  77.                  <SplineDoubleKeyFrame KeyTime=" />
  78.              </DoubleAnimationUsingKeyFrames>
  79.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse10">
  80.                  <SplineDoubleKeyFrame KeyTime=" />
  81.                  <SplineDoubleKeyFrame KeyTime=" />
  82.                  <SplineDoubleKeyFrame KeyTime=" />
  83.                  <SplineDoubleKeyFrame KeyTime=" />
  84.                  <SplineDoubleKeyFrame KeyTime=" />
  85.              </DoubleAnimationUsingKeyFrames>
  86.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse11">
  87.                  <SplineDoubleKeyFrame KeyTime=" />
  88.                  <SplineDoubleKeyFrame KeyTime=" />
  89.                  <SplineDoubleKeyFrame KeyTime=" />
  90.                  <SplineDoubleKeyFrame KeyTime=" />
  91.                  <SplineDoubleKeyFrame KeyTime=" />
  92.              </DoubleAnimationUsingKeyFrames>
  93.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse12">
  94.                  <SplineDoubleKeyFrame KeyTime=" />
  95.                  <SplineDoubleKeyFrame KeyTime=" />
  96.                  <SplineDoubleKeyFrame KeyTime=" />
  97.                  <SplineDoubleKeyFrame KeyTime=" />
  98.                  <SplineDoubleKeyFrame KeyTime=" />
  99.              </DoubleAnimationUsingKeyFrames>
  100.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse13">
  101.                  <SplineDoubleKeyFrame KeyTime=" />
  102.                  <SplineDoubleKeyFrame KeyTime=" />
  103.                  <SplineDoubleKeyFrame KeyTime=" />
  104.                  <SplineDoubleKeyFrame KeyTime=" />
  105.                  <SplineDoubleKeyFrame KeyTime=" />
  106.              </DoubleAnimationUsingKeyFrames>
  107.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse14">
  108.                  <SplineDoubleKeyFrame KeyTime=" />
  109.                  <SplineDoubleKeyFrame KeyTime=" />
  110.                  <SplineDoubleKeyFrame KeyTime=" />
  111.                  <SplineDoubleKeyFrame KeyTime=" />
  112.                  <SplineDoubleKeyFrame KeyTime=" />
  113.              </DoubleAnimationUsingKeyFrames>
  114.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse15">
  115.                  <SplineDoubleKeyFrame KeyTime=" />
  116.                  <SplineDoubleKeyFrame KeyTime=" />
  117.                  <SplineDoubleKeyFrame KeyTime=" />
  118.                  <SplineDoubleKeyFrame KeyTime=" />
  119.                  <SplineDoubleKeyFrame KeyTime=" />
  120.              </DoubleAnimationUsingKeyFrames>
  121.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse16">
  122.                  <SplineDoubleKeyFrame KeyTime=" />
  123.                  <SplineDoubleKeyFrame KeyTime=" />
  124.                  <SplineDoubleKeyFrame KeyTime=" />
  125.                  <SplineDoubleKeyFrame KeyTime=" />
  126.                  <SplineDoubleKeyFrame KeyTime=" />
  127.              </DoubleAnimationUsingKeyFrames>
  128.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.Opacity)" RepeatBehavior="Forever" Storyboard.TargetName="ellipse17">
  129.                  <SplineDoubleKeyFrame KeyTime=" />
  130.                  <SplineDoubleKeyFrame KeyTime=" />
  131.                  <SplineDoubleKeyFrame KeyTime=" />
  132.                  <SplineDoubleKeyFrame KeyTime=" />
  133.              </DoubleAnimationUsingKeyFrames>
  134.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" RepeatBehavior="Forever" Storyboard.TargetName="border" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[2].(RotateTransform.Angle)">
  135.                  <SplineDoubleKeyFrame KeyTime=" />
  136.                  <SplineDoubleKeyFrame KeyTime=" />
  137.                  <SplineDoubleKeyFrame KeyTime=" />
  138.              </DoubleAnimationUsingKeyFrames>
  139.              <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" RepeatBehavior="Forever" Storyboard.TargetName="border1" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[2].(RotateTransform.Angle)">
  140.                  <SplineDoubleKeyFrame KeyTime=" />
  141.                  <SplineDoubleKeyFrame KeyTime=" />
  142.                  <SplineDoubleKeyFrame KeyTime=" />
  143.              </DoubleAnimationUsingKeyFrames>
  144.          </Storyboard>
  145.      </Window.Resources>
  146.      <Window.Triggers>
  147.          <EventTrigger RoutedEvent="FrameworkElement.Loaded">
  148.              <BeginStoryboard Storyboard="{StaticResource Storyboard1}" />
  149.          </EventTrigger>
  150.      </Window.Triggers>
  151.      <Grid x:Name="LayoutRoot">
  152.          <Viewbox Width=">
  153.              <Grid HorizontalAlignment=" VerticalAlignment="Center" Width="3.333" Height="3.333" Visibility="Visible">
  154.                  <Ellipse RenderTransformOrigin="0.468,3.443" x:Name="ellipse" Fill="Black" Stroke="{x:Null}"  />
  155.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}"  x:Name="ellipse0" >
  156.                      <Ellipse.RenderTransform>
  157.                          <TransformGroup>
  158.                              <ScaleTransform ScaleX=" />
  159.                              <SkewTransform AngleX=" />
  160.                              <RotateTransform Angle=" />
  161.                              <TranslateTransform X=" />
  162.                          </TransformGroup>
  163.                      </Ellipse.RenderTransform>
  164.                  </Ellipse>
  165.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse1" >
  166.                      <Ellipse.RenderTransform>
  167.                          <TransformGroup>
  168.                              <ScaleTransform ScaleX=" />
  169.                              <SkewTransform AngleX=" />
  170.                              <RotateTransform Angle=" />
  171.                              <TranslateTransform X=" />
  172.                          </TransformGroup>
  173.                      </Ellipse.RenderTransform>
  174.                  </Ellipse>
  175.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse2" >
  176.                      <Ellipse.RenderTransform>
  177.                          <TransformGroup>
  178.                              <ScaleTransform ScaleX=" />
  179.                              <SkewTransform AngleX=" />
  180.                              <RotateTransform Angle=" />
  181.                              <TranslateTransform X=" />
  182.                          </TransformGroup>
  183.                      </Ellipse.RenderTransform>
  184.                  </Ellipse>
  185.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse3">
  186.                      <Ellipse.RenderTransform>
  187.                          <TransformGroup>
  188.                              <ScaleTransform ScaleX=" />
  189.                              <SkewTransform AngleX=" />
  190.                              <RotateTransform Angle=" />
  191.                              <TranslateTransform X=" />
  192.                          </TransformGroup>
  193.                      </Ellipse.RenderTransform>
  194.                  </Ellipse>
  195.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse4">
  196.                      <Ellipse.RenderTransform>
  197.                          <TransformGroup>
  198.                              <ScaleTransform ScaleX=" />
  199.                              <SkewTransform AngleX=" />
  200.                              <RotateTransform Angle=" />
  201.                              <TranslateTransform X=" />
  202.                          </TransformGroup>
  203.                      </Ellipse.RenderTransform>
  204.                  </Ellipse>
  205.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse5">
  206.                      <Ellipse.RenderTransform>
  207.                          <TransformGroup>
  208.                              <ScaleTransform ScaleX=" />
  209.                              <SkewTransform AngleX=" />
  210.                              <RotateTransform Angle=" />
  211.                              <TranslateTransform X=" />
  212.                          </TransformGroup>
  213.                      </Ellipse.RenderTransform>
  214.                  </Ellipse>
  215.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse6" >
  216.                      <Ellipse.RenderTransform>
  217.                          <TransformGroup>
  218.                              <ScaleTransform ScaleX=" />
  219.                              <SkewTransform AngleX=" />
  220.                              <RotateTransform Angle=" />
  221.                              <TranslateTransform X=" />
  222.                          </TransformGroup>
  223.                      </Ellipse.RenderTransform>
  224.                  </Ellipse>
  225.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse7" >
  226.                      <Ellipse.RenderTransform>
  227.                          <TransformGroup>
  228.                              <ScaleTransform ScaleX=" />
  229.                              <SkewTransform AngleX=" />
  230.                              <RotateTransform Angle=" />
  231.                              <TranslateTransform X=" />
  232.                          </TransformGroup>
  233.                      </Ellipse.RenderTransform>
  234.                  </Ellipse>
  235.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse8" >
  236.                      <Ellipse.RenderTransform>
  237.                          <TransformGroup>
  238.                              <ScaleTransform ScaleX=" />
  239.                              <SkewTransform AngleX=" />
  240.                              <RotateTransform Angle=" />
  241.                              <TranslateTransform X=" />
  242.                          </TransformGroup>
  243.                      </Ellipse.RenderTransform>
  244.                  </Ellipse>
  245.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse9" >
  246.                      <Ellipse.RenderTransform>
  247.                          <TransformGroup>
  248.                              <ScaleTransform ScaleX=" />
  249.                              <SkewTransform AngleX=" />
  250.                              <RotateTransform Angle=" />
  251.                              <TranslateTransform X=" />
  252.                          </TransformGroup>
  253.                      </Ellipse.RenderTransform>
  254.                  </Ellipse>
  255.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse10" >
  256.                      <Ellipse.RenderTransform>
  257.                          <TransformGroup>
  258.                              <ScaleTransform ScaleX=" />
  259.                              <SkewTransform AngleX=" />
  260.                              <RotateTransform Angle=" />
  261.                              <TranslateTransform X=" />
  262.                          </TransformGroup>
  263.                      </Ellipse.RenderTransform>
  264.                  </Ellipse>
  265.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse11" >
  266.                      <Ellipse.RenderTransform>
  267.                          <TransformGroup>
  268.                              <ScaleTransform ScaleX=" />
  269.                              <SkewTransform AngleX=" />
  270.                              <RotateTransform Angle=" />
  271.                              <TranslateTransform X=" />
  272.                          </TransformGroup>
  273.                      </Ellipse.RenderTransform>
  274.                  </Ellipse>
  275.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse12" >
  276.                      <Ellipse.RenderTransform>
  277.                          <TransformGroup>
  278.                              <ScaleTransform ScaleX=" />
  279.                              <SkewTransform AngleX=" />
  280.                              <RotateTransform Angle=" />
  281.                              <TranslateTransform X=" />
  282.                          </TransformGroup>
  283.                      </Ellipse.RenderTransform>
  284.                  </Ellipse>
  285.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse13" >
  286.                      <Ellipse.RenderTransform>
  287.                          <TransformGroup>
  288.                              <ScaleTransform ScaleX=" />
  289.                              <SkewTransform AngleX=" />
  290.                              <RotateTransform Angle=" />
  291.                              <TranslateTransform X=" />
  292.                          </TransformGroup>
  293.                      </Ellipse.RenderTransform>
  294.                  </Ellipse>
  295.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse14" >
  296.                      <Ellipse.RenderTransform>
  297.                          <TransformGroup>
  298.                              <ScaleTransform ScaleX=" />
  299.                              <SkewTransform AngleX=" />
  300.                              <RotateTransform Angle=" />
  301.                              <TranslateTransform X=" />
  302.                          </TransformGroup>
  303.                      </Ellipse.RenderTransform>
  304.                  </Ellipse>
  305.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse15" >
  306.                      <Ellipse.RenderTransform>
  307.                          <TransformGroup>
  308.                              <ScaleTransform ScaleX=" />
  309.                              <SkewTransform AngleX=" />
  310.                              <RotateTransform Angle=" />
  311.                              <TranslateTransform X=" />
  312.                          </TransformGroup>
  313.                      </Ellipse.RenderTransform>
  314.                  </Ellipse>
  315.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse16" >
  316.                      <Ellipse.RenderTransform>
  317.                          <TransformGroup>
  318.                              <ScaleTransform ScaleX=" />
  319.                              <SkewTransform AngleX=" />
  320.                              <RotateTransform Angle=" />
  321.                              <TranslateTransform X=" />
  322.                          </TransformGroup>
  323.                      </Ellipse.RenderTransform>
  324.                  </Ellipse>
  325.                  <Ellipse RenderTransformOrigin="0.468,3.443" Fill="Black" Stroke="{x:Null}" x:Name="ellipse17" >
  326.                      <Ellipse.RenderTransform>
  327.                          <TransformGroup>
  328.                              <ScaleTransform ScaleX=" />
  329.                              <SkewTransform AngleX=" />
  330.                              <RotateTransform Angle=" />
  331.                              <TranslateTransform X=" />
  332.                          </TransformGroup>
  333.                      </Ellipse.RenderTransform>
  334.                  </Ellipse>
  335.                  <Ellipse RenderTransformOrigin="0.5,0.499" x:Name="ellipse_Copy" Fill="Black" Stroke="{x:Null}" Margin="-0.012,0,0.001,-9.67" VerticalAlignment="Bottom" Height="3.344">
  336.                      <Ellipse.RenderTransform>
  337.                          <TransformGroup>
  338.                              <ScaleTransform ScaleX=" />
  339.                              <SkewTransform AngleX=" />
  340.                              <RotateTransform Angle=" />
  341.                              <TranslateTransform X=" />
  342.                          </TransformGroup>
  343.                      </Ellipse.RenderTransform>
  344.                  </Ellipse>
  345.                  <Border RenderTransformOrigin="0.492,1.006" Margin="1.081,0,1.086,-8.056" x:Name="border" VerticalAlignment="Bottom" Height="8.622" Background="Black" CornerRadius="1,1,0,0">
  346.                      <Border.RenderTransform>
  347.                          <TransformGroup>
  348.                              <ScaleTransform ScaleX=" />
  349.                              <SkewTransform AngleX=" />
  350.                              <RotateTransform Angle=" />
  351.                              <TranslateTransform X=" />
  352.                          </TransformGroup>
  353.                      </Border.RenderTransform>
  354.                  </Border>
  355.                  <Border Height="4.994" Background="Black" CornerRadius="1,1,0,0" RenderTransformOrigin="0.496,1.001" Margin="0.705,0,0.714,-8.058" x:Name="border1" VerticalAlignment="Bottom">
  356.                      <Border.RenderTransform>
  357.                          <TransformGroup>
  358.                              <ScaleTransform ScaleX=" />
  359.                              <SkewTransform AngleX=" />
  360.                              <RotateTransform Angle=" />
  361.                              <TranslateTransform X=" />
  362.                          </TransformGroup>
  363.                      </Border.RenderTransform>
  364.                  </Border>
  365.              </Grid>
  366.          </Viewbox>
  367.          <Label Content=" Foreground="Orange" HorizontalAlignment="Left" Margin="396,668,0,0" VerticalAlignment="Top" RenderTransformOrigin="0.274,0.462"/>
  368.      </Grid>
  369.  </Window>

后台C#代码

  1.   public partial class CoverForm : Window
  2.      {
  3.          public CoverForm(Action workAction)
  4.          {
  5.              InitializeComponent();
  6.              this.workAction = workAction;
  7.              System.Threading.Thread t = new System.Threading.Thread(ExecWorkAction);
  8.              t.IsBackground = true;
  9.              t.Start();
  10.          }
  11.          private Action workAction = null;
  12.          private void ExecWorkAction()
  13.          {
  14.              try
  15.              {
  16.                  var workTask = new Task(workAction);
  17.                  workTask.Start();
  18.                  Task.WaitAll(workTask);
  19.              }
  20.              finally
  21.              {
  22.                  this.Dispatcher.Invoke(new Action(() => { this.Close(); }));
  23.              }
  24.          }
  25.      }

调用的代码

  1.   new CoverForm(() => {耗时的代码 }); }).Show();

有需要的尽管拿去吧，要问我是谁，请叫我是雷锋。

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