問題：
I have a TextBlock in WPF.我在 WPF 中有一個TextBlock 。 I write many lines to it, far exceeding its vertical height.我給它寫了很多行，遠遠超過它的垂直高度。 I expected a vertical scroll bar to appear automatically when that happens, but it didn't.我希望在發生這種情況時會自動出現垂直滾動條，但事實並非如此。 I tried to look for a scroll bar property in the Properties pane, but could not find one.我試圖在“屬性”窗格中查找滾動條屬性，但找不到。
How can I make vertical scroll bar created automatically for my TextBlock once its contents exceed its height?一旦TextBlock的內容超過其高度，如何爲我的TextBlock自動創建垂直滾動條？
Clarification: I would rather do it from the designer and not by directly writing to the XAML.澄清：我寧願從設計者那裏做，而不是直接寫入 XAML。
解決方案：
參考一： https://en.stackoom.com/question/50BD參考二： https://stackoom.com/question/50BD