wpf半圆形进度条代码
时间: 2023-04-04 14:01:44 浏览: 91
以下是 WPF 半圆形进度条的代码示例:
```xml
<Grid>
<Path Stroke="Gray" StrokeThickness="10" Data="M 100,50 A 50,50 1 1 99.99,50" />
<Path Stroke="Blue" StrokeThickness="10" Data="M 100,50 A 50,50 1 1 99.99,50"
StrokeStartLineCap="Round" StrokeEndLineCap="Round">
<Path.Data>
<PathGeometry>
<PathFigure StartPoint="100,">
<ArcSegment Point="100," Size="50,50" SweepDirection="Clockwise" />
</PathFigure>
</PathGeometry>
</Path.Data>
<Path.Triggers>
<EventTrigger RoutedEvent="Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="(Path.Data).(PathGeometry.Figures)[].(PathFigure.StartPoint).X"
From="100" To="" Duration="::5" RepeatBehavior="Forever" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Path.Triggers>
</Path>
</Grid>
```
这个代码使用了两个 `Path` 元素,一个用于绘制灰色的半圆形,另一个用于绘制蓝色的进度条。蓝色的进度条使用了 `PathGeometry` 和 `ArcSegment` 来绘制一个半圆形的弧线,并通过 `DoubleAnimation` 实现了进度条的动画效果。