c# - 即使内容高于容器，WPF 控件也会底部对齐

Question

我有一个需要显示的控件，以便它始终与其容器的底部对齐，即使该控件比其容器高。我已经设置了控件的 VerticalAlignment="Bottom"，当容器较大时效果很好，但当容器缩小时，控件的顶部与容器的顶部和底部对齐被切断。我需要切掉顶部。

<Window x:Class="NestedListBox.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:system="clr-namespace:System;assembly=mscorlib"
        x:Name="Root"
        Title="MainWindow" Height="185" Width="525">
    <Grid>
        <ItemsControl VerticalAlignment="Bottom">
            <system:String>Test 1</system:String>
            <system:String>Test 2</system:String>
            <system:String>Test 3</system:String>
            <system:String>Test 4</system:String>
            <system:String>Test 5</system:String>
            <system:String>Test 6</system:String>
            <system:String>Test 7</system:String>
            <system:String>Test 8</system:String>
            <system:String>Test 9</system:String>
            <system:String>Test 10</system:String>
            <system:String>Test 1</system:String>
            <system:String>Test 2</system:String>
            <system:String>Test 3</system:String>
            <system:String>Test 4</system:String>
            <system:String>Test 5</system:String>
            <system:String>Test 6</system:String>
            <system:String>Test 7</system:String>
            <system:String>Test 8</system:String>
            <system:String>Test 9</system:String>
            <system:String>Test 10</system:String>
        </ItemsControl>
    </Grid>
</Window>

当您将窗口拖动到大于 ItemsControl 时，它会保持与底部对齐，但一旦窗口变小，顶部就会对齐。

代替 Grid，我还尝试将 DockPanel 设置为 ItemsControl DockPanel.Dock="Bottom"，但这也不起作用。

Answer 1

您可以使用 Canvas 来达到您的预期效果

请注意，VerticalAlignment 已从 ItemsControl 中删除，并且 Canvas.Bottom 设置为 0 以使其固定在 Canvas 的底部。

<Grid>
    <Canvas>
        <ItemsControl Canvas.Bottom="0">
            <system:String>Test 1</system:String>
            <system:String>Test 2</system:String>
            <system:String>Test 3</system:String>
            <system:String>Test 4</system:String>
            <system:String>Test 5</system:String>
            <system:String>Test 6</system:String>
            <system:String>Test 7</system:String>
            <system:String>Test 8</system:String>
            <system:String>Test 9</system:String>
            <system:String>Test 10</system:String>
            <system:String>Test 1</system:String>
            <system:String>Test 2</system:String>
            <system:String>Test 3</system:String>
            <system:String>Test 4</system:String>
            <system:String>Test 5</system:String>
            <system:String>Test 6</system:String>
            <system:String>Test 7</system:String>
            <system:String>Test 8</system:String>
            <system:String>Test 9</system:String>
            <system:String>Test 10</system:String>
        </ItemsControl>
    </Canvas>
</Grid>