Question

我在DockPanel控件中有两个Expanders，位于顶部的第一个Expander设置为isExpanded为true而另一个Expander设置为not。

我只是希望第二个Expander在运行时将第一个Expander设置为isExpanded false时上升...

这是我的XAML代码：

<DockPanel LastChildFill="False" Margin="0,26,0,0" Background="#FF552D2D" HorizontalAlignment="Left" Width="149">
        <StackPanel ScrollViewer.VerticalScrollBarVisibility="Auto">
            <Expander x:Name="AdminManage" Header="Manage" Margin="0" Foreground="#FF14D0EE" Height="198" IsExpanded="True" Collapsed="AdminManage_Collapsed" Width="544">
                <StackPanel x:Name="AdminStackPanel" Height="177" Margin="0,0,-2,0">
                    <Button Content="" Background="#FF552D2D" BorderBrush="{x:Null}" BorderThickness="0" Opacity="0.5" Foreground="White" VerticalAlignment="Center" Margin="23,0,0,0" HorizontalContentAlignment="Left" HorizontalAlignment="Left" Width="124"/>
                    <Button Content="" Margin="23,0,0,0" Background="#FF552D2D" BorderBrush="{x:Null}" BorderThickness="0" Opacity="0.5" Foreground="White" VerticalAlignment="Center" HorizontalContentAlignment="Left" HorizontalAlignment="Left" Width="124"/>
                    <Button Content="" Margin="23,0,0,0" Background="#FF552D2D" BorderBrush="{x:Null}" BorderThickness="0" Opacity="0.5" Foreground="White" VerticalAlignment="Center" HorizontalContentAlignment="Left" HorizontalAlignment="Left" Width="124"/>
                    <Button Content="" Margin="23,0,0,0" Background="#FF552D2D" BorderBrush="{x:Null}" BorderThickness="0" Opacity="0.5" Foreground="White" VerticalAlignment="Center" HorizontalContentAlignment="Left" HorizontalAlignment="Left" Width="124"/>
                    <Button Content="" Margin="23,0,0,0" Background="#FF552D2D" BorderBrush="{x:Null}" BorderThickness="0" Opacity="0.5" Foreground="White" VerticalAlignment="Center" HorizontalContentAlignment="Left" HorizontalAlignment="Left" Width="124"/>
                    <Button Content="" Margin="23,0,0,0" Background="#FF552D2D" BorderBrush="{x:Null}" BorderThickness="0" Opacity="0.5" Foreground="White" VerticalAlignment="Center" HorizontalContentAlignment="Left" HorizontalAlignment="Left" Width="124"/>
                    <Button Content="" Margin="23,0,0,0" Background="#FF552D2D" BorderBrush="{x:Null}" BorderThickness="0" Opacity="0.5" Foreground="White" VerticalAlignment="Center" HorizontalContentAlignment="Left" HorizontalAlignment="Left" Width="124"/>
                    <Button Content="" Margin="23,0,0,0" Background="#FF552D2D" BorderBrush="{x:Null}" BorderThickness="0" Opacity="0.5" Foreground="White" VerticalAlignment="Center" HorizontalContentAlignment="Left" HorizontalAlignment="Left" Width="124"/>
                </StackPanel>
            </Expander>
            <Expander Header="Account" Margin="0" VerticalAlignment="Top" Foreground="#FF14D0EE" Height="66">
                <StackPanel Height="44" Margin="0,0,-2,0">
                    <Button Content="" Margin="23,0,0,0" Background="#FF552D2D" BorderBrush="{x:Null}" BorderThickness="0" Opacity="0.5" Foreground="White" VerticalAlignment="Center" HorizontalContentAlignment="Left" HorizontalAlignment="Left" Width="124"/>
                    <Button Content="" Margin="23,0,0,0" Background="#FF552D2D" BorderBrush="{x:Null}" BorderThickness="0" Opacity="0.5" Foreground="White" VerticalAlignment="Center" HorizontalContentAlignment="Left" HorizontalAlignment="Left" Width="124"/>
                </StackPanel>
            </Expander>
        </StackPanel>
    </DockPanel>

Answer 1

从管理员Height中移除您的Expander媒体资源，我测试它会像预期的那样工作

Answer 2

通过下面你的意思是扩展扩展器？
如果是这样，你可以像下面那样进行元素绑定。您还需要一个转换器来反转第一个扩展器的布尔值。

            <Expander Header="Account" Margin="0" VerticalAlignment="Top" Foreground="#FF14D0EE" Height="66" 
IsExpanded="{Binding IsExpanded, ElementName=AdminManage, Converter={StaticResource InvertBooleanConverter}"
                <StackPanel Height="44" Margin="0,0,-2,0">
                 <!-- your content here -->
                </StackPanel>
            </Expander>

否则，如果您打算交换位置，则需要在Grid而不是StackPanel内添加扩展器，并在{{1}时更改扩展器的附加Grid.Row属性更改

展开并折叠WPF扩展器

2 个答案: