WPF气泡样式弹窗效果代码分享

页面设计需求，做了一个气泡形状的弹出框，效果如下：

设计思路如下：

1. 使用Path绘制气泡的尖尖，将这个放到顶层；

2. 在用border绘制长方形框，将这个放到底层，并且设置Margin值，使得Path图层和border看起来衔接在一起。 

代码如下：

后台代码，很简单，就是控制pupup显示或隐藏

private void btnTestPopup1_Click(object sender, RoutedEventArgs e)
  {
   pop1.IsOpen = true;
  }
  private void btnOK1_Click(object sender, RoutedEventArgs e)
  {
   pop1.IsOpen = false;
  }
  private void btnCancel1_Click(object sender, RoutedEventArgs e)
  {
   pop1.IsOpen = false;
  }

  private void btnTestPopup2_Click(object sender, RoutedEventArgs e)
  {
   pop2.IsOpen = true;
  }
  private void btnOK2_Click(object sender, RoutedEventArgs e)
  {
   pop2.IsOpen = false;
  }
  private void btnCancel2_Click(object sender, RoutedEventArgs e)
  {
   pop2.IsOpen = false;
  }

  private void btnTestPopup3_Click(object sender, RoutedEventArgs e)
  {
   pop3.IsOpen = true;
  }
  private void btnOK3_Click(object sender, RoutedEventArgs e)
  {
   pop3.IsOpen = false;
  }
  private void btnCancel3_Click(object sender, RoutedEventArgs e)
  {
   pop3.IsOpen = false;
  }

  private void btnTestPopup4_Click(object sender, RoutedEventArgs e)
  {
   pop4.IsOpen = true;
  }
  private void btnOK4_Click(object sender, RoutedEventArgs e)
  {
   pop4.IsOpen = false;
  }
  private void btnCancel4_Click(object sender, RoutedEventArgs e)
  {
   pop4.IsOpen = false;
  }

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