C#WPF - ScrollViewer + TextBlock麻烦

Question

我有一个TextBlock内部的ScrollViewer,与拉伸到其窗口对准.我需要TextBlock表现如下:

• 使用窗口调整大小,不使用滚动条
• 当调整大小低于某个宽度时, 应该出现TextBlock保持a MinWidth和滚动条的需要
• TextWrapping或者TextTrimming应该适当地工作

我该如何获得此功能？

我尝试了几种方法,包括绑定到ActualWidth&ActualHeight,但无法使其工作.

这不是那么困难,我错过了什么？

这是一个放在XamlPad中的代码示例(尚未设置MinWidth):

<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
            <TextBlock TextWrapping="Wrap" Text="Some really long text that should probably wordwrap when you resize the window." />
    </ScrollViewer>
</Window>

Answer 1

这有效:

<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <ScrollViewer HorizontalScrollBarVisibility="Auto" 
                  VerticalScrollBarVisibility="Auto"
                  Name="Scroller">
        <TextBlock HorizontalAlignment="Stretch"
                   VerticalAlignment="Stretch"
                   MinWidth="100"
                   Width="{Binding ElementName=Scroller, Path=ViewportWidth}"
                   TextWrapping="Wrap"
                   Text="Some really long text that should probably wordwrap when you resize the window." />
    </ScrollViewer>
</Window>