WPF气泡样式弹窗效果代码分享_实用技巧

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：

<Window x:Class="BubblePanelTest.MainWindow"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  Title="MainWindow" Height="350" Width="525">
 <Window.Resources>
  <Style TargetType="Label" x:Key="TopBubblePanel">
   <Setter Property="Template">
    <Setter.Value>
     <ControlTemplate TargetType="{x:Type Label}">
      <Grid>
       <Border CornerRadius="4" BorderBrush="Black" BorderThickness="1" VerticalAlignment="Top" Background="Yellow" HorizontalAlignment="Left" Margin="0,8.5,0,0" Padding="5">
        <ContentPresenter />
       </Border>
       <Canvas Width="10" Height="10" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="10,0,0,0" Background="Transparent">
        <Path Stroke="Black" StrokeThickness="0.5" Fill="Yellow">
         <Path.Data>
          <PathGeometry Figures="M 0,10
         L 0,10,5,0
         L 5,0,10,10
         "/>
         </Path.Data>
        </Path>
       </Canvas>
      </Grid>
     </ControlTemplate>
    </Setter.Value>
   </Setter>
  </Style>
  <Style TargetType="Label" x:Key="BottomBubblePanel">
   <Setter Property="Template">
    <Setter.Value>
     <ControlTemplate TargetType="{x:Type Label}">
      <Grid>
       <Border CornerRadius="4" BorderBrush="Black" BorderThickness="1" VerticalAlignment="Bottom" Margin="0,0,0,8.5" Background="Yellow" HorizontalAlignment="Left" Padding="5">
        <ContentPresenter />
       </Border>
       <Canvas Width="10" Height="10" HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="10,0,0,0" Background="Transparent">
        <Path Stroke="Black" StrokeThickness="0.5" Fill="Yellow">
         <Path.Data>
          <PathGeometry Figures="M 0,0
         L 0,0,5,10
         L 5,10,10,0
         "/>
         </Path.Data>
        </Path>
       </Canvas>
      </Grid>
     </ControlTemplate>
    </Setter.Value>
   </Setter>
  </Style>
  <Style TargetType="Label" x:Key="LeftBubblePanel">
   <Setter Property="Template">
    <Setter.Value>
     <ControlTemplate TargetType="{x:Type Label}">
      <Grid>
       <Border CornerRadius="4" BorderBrush="Black" BorderThickness="1" VerticalAlignment="Top" Margin="8.5,0,0,0" Background="Yellow" HorizontalAlignment="Left" Padding="5">
        <ContentPresenter />
       </Border>
       <Canvas Width="10" Height="10" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="0,10,0,0" Background="Transparent">
        <Path Stroke="Black" StrokeThickness="0.5" Fill="Yellow">
         <Path.Data>
          <PathGeometry Figures="M 10,0
         L 10,0,0,5
         L 0,5,10,10
         "/>
         </Path.Data>
        </Path>
       </Canvas>
      </Grid>
     </ControlTemplate>
    </Setter.Value>
   </Setter>
  </Style>
  <Style TargetType="Label" x:Key="RightBubblePanel">
   <Setter Property="Template">
    <Setter.Value>
     <ControlTemplate TargetType="{x:Type Label}">
      <Grid HorizontalAlignment="Left">
       <Border CornerRadius="4" BorderBrush="Black" BorderThickness="1" HorizontalAlignment="Right" VerticalAlignment="Top" Margin="0,0,8.5,0" Background="Yellow" Padding="5">
        <ContentPresenter />
       </Border>
       <Canvas Width="10" Height="10" HorizontalAlignment="Right" VerticalAlignment="Top" Margin="0,10,0,0" Background="Transparent">
        <Path Stroke="Black" StrokeThickness="0.5" Fill="Yellow">
         <Path.Data>
          <PathGeometry Figures="M 0,0
         L 0,0,10,5
         L 10,5,0,10
         "/>
         </Path.Data>
        </Path>
       </Canvas>
      </Grid>
     </ControlTemplate>
    </Setter.Value>
   </Setter>
  </Style>
 </Window.Resources>
 <StackPanel>
  <Label Style="{StaticResource TopBubblePanel}" Tag="Top" Margin="2">
   <StackPanel>
    <StackPanel Orientation="Horizontal">
     <TextBlock Text="abc" />
     <TextBox Width="80"/>
    </StackPanel>
   </StackPanel>
  </Label>
  <Label Style="{StaticResource BottomBubblePanel}" Tag="Top" Margin="2">
   <StackPanel>
    <StackPanel Orientation="Horizontal">
     <TextBlock Text="abc" />
     <TextBox Width="80"/>
    </StackPanel>
   </StackPanel>
  </Label>
  <Label Style="{StaticResource LeftBubblePanel}" Tag="Top" Margin="2">
   <StackPanel>
    <StackPanel Orientation="Horizontal">
     <TextBlock Text="abc" />
     <TextBox Width="80"/>
    </StackPanel>
   </StackPanel>
  </Label>
  <Label Style="{StaticResource RightBubblePanel}" Tag="Top" Margin="2">
   <StackPanel>
    <StackPanel Orientation="Horizontal">
     <TextBlock Text="abc" />
     <TextBox Width="80"/>
    </StackPanel>
   </StackPanel>
  </Label>
  <StackPanel Orientation="Horizontal" Margin="0,30,0,0">
   <Button Name="btnTestPopup1" Width="100" Height="30" Content="Bottom" Click="btnTestPopup1_Click" />
   <Button Name="btnTestPopup2" Width="100" Height="30" Content="Top" Click="btnTestPopup2_Click" />
   <Button Name="btnTestPopup3" Width="100" Height="30" Content="Right" Click="btnTestPopup3_Click" />
   <Button Name="btnTestPopup4" Width="100" Height="30" Content="Left" Click="btnTestPopup4_Click" />
  </StackPanel>
  <Popup Name="pop1" AllowsTransparency="True" StaysOpen="False" PopupAnimation="Slide" PlacementTarget="{Binding ElementName=btnTestPopup1}" Placement="Bottom" >
   <Label Style="{StaticResource TopBubblePanel}" Tag="Top">
    <StackPanel>
     <StackPanel Orientation="Horizontal">
      <TextBlock Text="abc" />
      <TextBox Width="80" Name="txtTest1" />
     </StackPanel>
     <StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
      <Button Content="确定" Click="btnOK1_Click" Width="50" Height="25" Margin="5" />
      <Button Content="取消" Click="btnCancel1_Click" Width="50" Height="25" Margin="5"/>
     </StackPanel>
    </StackPanel>
   </Label>
  </Popup>
  <Popup Name="pop2" AllowsTransparency="True" StaysOpen="False" PopupAnimation="Fade" PlacementTarget="{Binding ElementName=btnTestPopup2}" Placement="Top" >
   <Label Style="{StaticResource BottomBubblePanel}" Tag="Top">
    <StackPanel>
     <StackPanel Orientation="Horizontal">
      <TextBlock Text="abc" />
      <TextBox Width="80" Name="txtTest2" />
     </StackPanel>
     <StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
      <Button Content="确定" Click="btnOK2_Click" Width="50" Height="25" Margin="5"/>
      <Button Content="取消" Click="btnCancel2_Click" Width="50" Height="25" Margin="5"/>
     </StackPanel>
    </StackPanel>
   </Label>
  </Popup>
  <Popup Name="pop3" AllowsTransparency="True" StaysOpen="False" PopupAnimation="Scroll" PlacementTarget="{Binding ElementName=btnTestPopup3}" Placement="Right" >
   <Label Style="{StaticResource LeftBubblePanel}" Tag="Top">
    <StackPanel>
     <StackPanel Orientation="Horizontal">
      <TextBlock Text="abc" />
      <TextBox Width="80" Name="txtTest3" />
     </StackPanel>
     <StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
      <Button Content="确定" Click="btnOK2_Click" Width="50" Height="25" Margin="5"/>
      <Button Content="取消" Click="btnCancel3_Click" Width="50" Height="25" Margin="5"/>
     </StackPanel>
    </StackPanel>
   </Label>
  </Popup>
  <Popup Name="pop4" AllowsTransparency="True" StaysOpen="False" PopupAnimation="None" PlacementTarget="{Binding ElementName=btnTestPopup4}" Placement="Left" >
   <Label Style="{StaticResource RightBubblePanel}" Tag="Top">
    <StackPanel>
     <StackPanel Orientation="Horizontal">
      <TextBlock Text="abc" />
      <TextBox Width="80" Name="txtTest4" />
     </StackPanel>
     <StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
      <Button Content="确定" Click="btnOK4_Click" Width="50" Height="25" Margin="5"/>
      <Button Content="取消" Click="btnCancel4_Click" Width="50" Height="25" Margin="5"/>
     </StackPanel>
    </StackPanel>
   </Label>
  </Popup>
 </StackPanel>
</Window>

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;
  }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。

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