我们可以将Grid Splitter移动到左侧，就像我们在wpf上点击按钮一样拖动它吗？

Question

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我想在按钮Click上拖动Grid Splitter。我尝试过Double Animation.StoryBoard，它可以在网格上运行但不适用于网格分割器。

[] 1

Answer 1

您必须调整网格列的大小，而不是网格分割器。

private void BtnLeft_Click(object sender, RoutedEventArgs e)
{
    MyGrid.ColumnDefinitions[0].Width = new GridLength(100);
}

<Grid x:Name="MyGrid">
    <Grid.ColumnDefinitions>
        <ColumnDefinition />
        <ColumnDefinition Width="Auto" />
        <ColumnDefinition />
    </Grid.ColumnDefinitions>

    <Label Content="Left" Background="LightBlue" />
    <GridSplitter Grid.Column="1" Width="10" ResizeBehavior="PreviousAndNext" />
    <Label Content="Right" Background="LightGoldenrodYellow" Grid.Column="2" />

    <Button Content="Left"  HorizontalAlignment="Left" VerticalAlignment="Top" Click="BtnLeft_Click" />
</Grid>