隐藏 WPF 网格列时的 Gridsplitter 行为

Question

我对 WPF 还很陌生，所以请原谅我，如果这是“旧帽子”这些天...已经在网络/论坛上搜寻，但还没有找到我需要的答案：

我有一个包含 5 列的 WPF 网格 -三个用于数据，两个用于网格分割器，（感谢本网站上的信息！）似乎可以正常工作并调整大小。但是 - 我需要能够显示/隐藏中间列。我可以做到这一点，但是当我隐藏中间列时，左侧 gridsplitter 仍然会影响“隐藏”列 - 我需要在 2 和 2 之间有效切换。三栏。这是我的（原型）代码：

<Grid>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Name="Col0" Width="*" />
        <ColumnDefinition Name="Col1" Width="auto" />
        <ColumnDefinition Name="Col2" Width="*" />
        <ColumnDefinition Name="Col3" Width="auto" />
        <ColumnDefinition Name="Col4" Width="auto" />
    </Grid.ColumnDefinitions>
    <GridSplitter Grid.Column="1" Height="100" HorizontalAlignment="Center" Margin="0" Name="GridSplitter1" VerticalAlignment="Stretch" Width="3" />
    <GridSplitter Grid.Column="3" Height="100" HorizontalAlignment="Center" Margin="0" Name="GridSplitter2" VerticalAlignment="Stretch" Width="3" />
    <Border BorderBrush="Silver" BorderThickness="1" Grid.Column="0" HorizontalAlignment="Stretch" Margin="0" Name="Border1" VerticalAlignment="Stretch" Background="#FFC84797" />
    <Border BorderBrush="Silver" BorderThickness="1" Grid.Column="2" HorizontalAlignment="Stretch" Margin="0" Name="Border2" VerticalAlignment="Stretch" Background="Black" />
    <Border BorderBrush="Silver" BorderThickness="1" Grid.Column="4" HorizontalAlignment="Stretch" Margin="0" Name="Border3" VerticalAlignment="Stretch" Background="#FFA60000">
        <Button Content="hide" Height="33" Name="butHide" Width="85" />
    </Border>
</Grid>

Private Sub butHide_Click(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles butHide.Click

    If butHide.Content = "hide" Then

        butHide.Content = "show"
        Col2.Width = New GridLength(0)
        Border2.Visibility = System.Windows.Visibility.Collapsed
        GridSplitter2.Visibility = System.Windows.Visibility.Collapsed

    Else()

        butHide.Content = "hide"
        Col2.Width = New GridLength(1, GridUnitType.Star)
        Border2.Visibility = System.Windows.Visibility.Visible
        GridSplitter2.Visibility = System.Windows.Visibility.Visible

    End If
End Sub

Answer 1

这里对您来说最简单的事情可能就是为 Border1 设置 Grid.ZIndex="2" ，然后在 1 和 3 之间切换 ColumnSpan在点击事件中。

<Border Grid.Column="0"
        Grid.ZIndex="2"
        Name="Border1"
        .../>

代码隐藏

private void butHide_Click(object sender, RoutedEventArgs e)
{
    if (butHide.Content.ToString() == "hide")
    {
        butHide.Content = "show";
        Grid.SetColumnSpan(Border1, 3);
    }
    else
    {
        butHide.Content = "hide";
        Grid.SetColumnSpan(Border1, 1);
    }
}

Answer 2

另一个解决方案是将网格分隔符放在要调整其内容后面大小的同一列中，并为内容设置边距。请参阅此链接以获取参考解决方案： http://www.ehow.com/how_4546867_use-gridsplitter- wpf.html

    <Grid>
     <Grid.RowDefinitions>
      <RowDefinition></RowDefinition>
     </Grid.RowDefinitions>
     <Grid.ColumnDefinitions>
      <ColumnDefinition></ColumnDefinition>
      <ColumnDefinition></ColumnDefinition>
     </Grid.ColumnDefinitions>

     <GridSplitter Grid.Row="0" Grid.Column="0" HorizontalAlignment="Right" Width="4" Background="Yellow"/>
     <TextBlock Grid.Row="0" Grid.Column="0" Margin="0 0 4 0" Background="LightGray">Text Block</TextBlock>
     <TextBlock Grid.Row="0" Grid.Column="1" Background="LightGreen">Text Block 2</TextBlock>
     </Grid>

了解更多：如何在 WPF 中使用 Gridsplitter | eHow.com http://www.ehow.com/how_4546867_use-gridsplitter-wpf。 html#ixzz1mXqi6sGa