WPF网格显示/隐藏列

我的网格中有以下布局

<Grid>
    <Grid.RowDefinitions >
        <RowDefinition Height="50" />
        <RowDefinition />
    </Grid.RowDefinitions>
    <Button Click="Button_Click"  Grid.Row="0" Width="50" Grid.Column="2" Content="Test" />
    <Grid Grid.Row="1">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="120" />
        <ColumnDefinition  />
        <ColumnDefinition Width="Auto"  />
    </Grid.ColumnDefinitions>
    <StackPanel Grid.Column="0" Grid.Row="1" Background="red" />
    <StackPanel Grid.Column="1" Grid.Row="1" Background="Blue" />
    <GridSplitter x:Name="gs"  Grid.Column="1" Grid.Row="1" Width="10" />
    <StackPanel x:Name="green" MinWidth="100" Grid.Column="2" Grid.Row="1" Background="Green" />
   </Grid>
</Grid>

当按下按钮时，我基本上想要这种布局：

   <StackPanel Grid.Column="0" Grid.Row="1" Background="red" />
    <StackPanel Grid.Column="1" Grid.ColumnSpan="2" Grid.Row="1" Background="Blue" />
    <!--<GridSplitter x:Name="gs"  Grid.Column="1" Grid.Row="1" Width="10" />
    <StackPanel x:Name="green" MinWidth="100" Grid.Column="2" Grid.Row="1" Background="Green" />-->

当再次按下按钮时，此布局为：

    <StackPanel Grid.Column="0" Grid.Row="1" Background="red" />
    <StackPanel Grid.Column="1" Grid.ColumnSpan="1" Grid.Row="1" Background="Blue" />
    <GridSplitter x:Name="gs"  Grid.Column="1" Grid.Row="1" Width="10" />
    <StackPanel x:Name="green" MinWidth="100" Grid.Column="2" Grid.Row="1" Background="Green" />

如何使格子分离器和最后的面板消失，中间柱中的面板填充了它的位置？（反之亦然）是否有办法在运行时更改柱跨度

---

谢谢

您可以使用触发器，也可以使用情节提要/动画，当您单击按钮时会触发

你想做这样的事

<Window.Resources>

        <Storyboard x:Key="OnClick1">
            <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="gs" Storyboard.TargetProperty="(FrameworkElement.Width)">
                <SplineDoubleKeyFrame KeyTime="00:00:00.5000000" Value="0"/>
            </DoubleAnimationUsingKeyFrames>
            <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="green" Storyboard.TargetProperty="(FrameworkElement.MinWidth)">
                <SplineDoubleKeyFrame KeyTime="00:00:00.5000000" Value="0"/>
            </DoubleAnimationUsingKeyFrames>
        </Storyboard>

    </Window.Resources>
    <Window.Triggers>
        <EventTrigger RoutedEvent="ButtonBase.Click" SourceName="button">
            <BeginStoryboard Storyboard="{StaticResource OnClick1}"/>
        </EventTrigger>
    </Window.Triggers>

为了反转此动画，您应该使用一些东西来保持状态，例如使用ToggleButton并使用ToggleButton.Checked&&ToggleButton.Unchecked路由事件。或者，将依赖项属性添加到维护状态的codebehind中

我认为主要的问题是记住还要更改MinWidth属性。MinWidth将覆盖实际宽度