C# 如何让 WPF TextBlock 在异步设置 Text 属性的位置滚动？
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How to get a WPF TextBlock to scroll where the Text property is set asynchronously?
提问by MalcomTucker
I have a TextBlock, wrapped in a ScrollViewer, and the Textproperty of the TextBlockis set with the result of a Task. The scrollbars of the TextBlockdo not adjust to the size of the text returned by the task.
我有一个TextBlock, 包裹在 a 中ScrollViewer，并且 的Text属性TextBlock是用任务的结果设置的。的滚动条TextBlock不会根据任务返回的文本大小进行调整。
Any ideas?
有任何想法吗？
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="500"/>
</Grid.ColumnDefinitions>
<ScrollViewer VerticalScrollBarVisibility="Auto"
Height="177"
Width="500"
HorizontalScrollBarVisibility="Disabled">
<TextBlock Height="177"
Text="Extracted Xml"
Width="504"
HorizontalAlignment="Stretch"
TextWrapping="Wrap" />
</ScrollViewer>
</Grid>
采纳答案by Nogard
ScrollViewercalculates it's scrollbars based on dimensions of child controls.
ScrollViewer根据子控件的尺寸计算它的滚动条。
Thus, remove Heightproperty from your TextBlockand ScrollBars should work as expected
因此，Height从您的TextBlock和 ScrollBars 中删除属性应该按预期工作
