我使用了 Grid 和 GridSplitters,因为这样可以很容易地调整中间列的大小,同时保持左右列的宽度。
XAML:
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
x:Class="MainWindow"
Title="Main Window"
Width="640" Height="480">
<Grid>
<Grid.ColumnDefinitions>
<!-- Left column -->
<ColumnDefinition Width="200" MinWidth="100"/>
<!-- Left GridSplitter column -->
<ColumnDefinition Width="5"/>
<!-- Center column. A width of * means the column will fill
any remaining space. -->
<ColumnDefinition Width="*"/>
<!-- Right GridSplitter column -->
<ColumnDefinition x:Name="RightSplitterColumn" Width="5"/>
<!-- Right column -->
<ColumnDefinition x:Name="RightColumn" Width="200"
MinWidth="100"/>
</Grid.ColumnDefinitions>
<GridSplitter Grid.Column="1" HorizontalAlignment="Stretch" />
<GridSplitter Grid.Column="3" HorizontalAlignment="Stretch" />
<Button x:Name="ToggleButton" Grid.Column="2"
Content="Toggle Right Column" Width="150" Height="25"
Click="ToggleButton_Click" />
</Grid>
</Window>
代码隐藏
隐藏右列时,我只是将列宽设置为 0,因为网格列没有可见性属性。
public partial class MainWindow : Window
{
private double rightColumnWidth;
private double rightColumnMinWidth;
private bool rightColumnHidden;
public MainWindow()
{
this.InitializeComponent();
}
private void ToggleButton_Click(object sender, RoutedEventArgs e)
{
if (rightColumnHidden)
{
// Restore the widths.
RightColumn.MinWidth = rightColumnMinWidth;
RightColumn.Width = new GridLength(rightColumnWidth);
RightSplitterColumn.Width = new GridLength(5);
}
else
{
// Remember the user-set widths for the columns.
rightColumnWidth = RightColumn.Width.Value;
rightColumnMinWidth = RightColumn.MinWidth;
// Remember to set the minimum width to 0 before changing the actual
// width.
RightColumn.MinWidth = 0;
RightColumn.Width = new GridLength(0);
RightSplitterColumn.Width = new GridLength(0);
}
rightColumnHidden = !rightColumnHidden;
}
}
至于在启动时保存和恢复列宽,我只需将宽度变量存储到设置文件中,然后在重新打开您的应用程序时应用它们。