Scrollviewer隐藏了我的以下控件

问题描述

你好！

所以这是我的代码:

Hello!

So here is my code:

<DockPanel>
        <ScrollViewer DockPanel.Dock="Top" VerticalScrollBarVisibility="Auto">
            <StackPanel>
                <ListBox Name="MixControl" ScrollViewer.HorizontalScrollBarVisibility="Disabled" HorizontalAlignment="Stretch" ItemContainerStyle="{StaticResource StretchedContainerStyle}" ItemTemplate="{StaticResource MixListBoxItemTemplate}"/>
            </StackPanel>
        </ScrollViewer>
        <Expander DockPanel.Dock="Bottom" VerticalAlignment="Bottom" IsExpanded="True">
            <DockPanel>
                <TextBlock Text="Login:"></TextBlock>
                <TextBox></TextBox>
                <TextBlock Text="Password:"></TextBlock>
                <PasswordBox></PasswordBox>
            </DockPanel>
        </Expander>
    </DockPanel>

我想实现在Windows底部始终可见一个带".上面应该是Scrollviewer，在需要时显示滚动条.

但是，如果显示了滚动条，则我的底部Dockpanel将被Scrollviewer隐藏".如何实现扩展器的始终可见性?

I want to achieve to have a "band" on the bottom of my Window always visable. Above should be the Scrollviewer, showing the scrollbar when nessecary.

But if the scrollbar is shown, my bottom Dockpanel gets "hidden" by the Scrollviewer. What can I do to achieve always visability for my Expander?

Thanks!

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