需求:界面由多部分控件组成,想要拖拽控件之间的分隔栏以改变尺寸。
MainWindow.xaml:
- <Grid>
- <Grid.ColumnDefinitions>
- <ColumnDefinition Width="300"/>
- <ColumnDefinition Width="300"/>
- </Grid.ColumnDefinitions>
-
- <ListBox Grid.Row="0" Grid.Column="0">
- <ListBoxItem>aaaa</ListBoxItem>
- <ListBoxItem>bbbb</ListBoxItem>
- <ListBoxItem>cccb</ListBoxItem>
- </ListBox>
-
- <TextBlock Grid.Row="0" Grid.Column="1">sadfas</TextBlock>
-
- <GridSplitter Grid.Row="0" Grid.Column="0" Width="0" VerticalAlignment="Stretch" HorizontalAlignment="Right"/>
-
- </Grid>
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运行效果如下:
红色虚线表示了拖动分隔栏以改变控件的尺寸边缘。
坑点:
- 必须使用Grid及其行和列来定义,否则能显示但无法拖动。例如下面的写法是无效的:
- <StackPanel Orientation="Horizontal">
- <TextBlock Text="LLLLLLLLLLLLLL"/>
- <GridSplitter Width="10" HorizontalAlignment="Center" VerticalAlignment="Stretch" Background="Wheat"/>
- <TextBlock Text="RRRRRRRRRRRRRR"/>
- </StackPanel>
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- 对于左右分割列,必须指定分隔栏GridSplitter的宽度Width,以及设置VerticalAlignment,否则无效。
- 对于上下分割行,必须指定分隔栏GridSplitter的高度Height,以及设置HorizontalAlignment,否则无效。
再来一个详细一点的例子:
- <Window x:Class="WpfApplication1.MainWindow"
- xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
- xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
- xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
- xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
- xmlns:local="clr-namespace:WpfApplication1"
- xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
- xmlns:xcdg="http://schemas.xceed.com/wpf/xaml/datagrid"
- mc:Ignorable="d"
- Title="MainWindow" Height="600" Width="1000">
-
- <Grid>
- <Grid.RowDefinitions/>
- <Grid.ColumnDefinitions>
- <ColumnDefinition/>
- <ColumnDefinition Width="10"/>
- <ColumnDefinition/>
- </Grid.ColumnDefinitions>
-
- <TextBlock Grid.Row="0" Grid.Column="0" Text="LLLLLLLLLLLLLL"/>
- <GridSplitter Grid.Row="0" Grid.Column="1" Width="10" HorizontalAlignment="Center" VerticalAlignment="Stretch" Background="Wheat"/>
-
- <Grid Grid.Row="0" Grid.Column="2">
- <Grid.RowDefinitions>
- <RowDefinition/>
- <RowDefinition Height="10"/>
- <RowDefinition/>
- </Grid.RowDefinitions>
- <Grid.ColumnDefinitions>
- <ColumnDefinition/>
- </Grid.ColumnDefinitions>
-
- <TextBlock Grid.Row="0" Grid.Column="0" Text="RRRRRRTTTTTTTT"/>
- <GridSplitter Grid.Row="1" Grid.Column="0" Height="10" HorizontalAlignment="Stretch" Background="Wheat"/>
- <TextBlock Grid.Row="2" Grid.Column="0" Text="RRRRRRBBBBBBBB"/>
-
- </Grid>
- </Grid>
-
- </Window>
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运行效果如图:下面的水平和垂直的黄色分隔栏都是可以拖动的。
重要的参考: