在将文本输入到 TextBox 时立即触发 TextChanged 事件 [英] Having TextChanged Event Fire Immediately as Text is Typed into TextBox

问题描述

在具有 TextChanged 事件的 wpf TextBox 上，它似乎仅在焦点从文本框移开时触发；但不是因为输入了单个字符.

On a wpf TextBox that has an TextChanged event, it seems to only fires when focus is taken away from the textbox; but not as individual characters are typed in.

是否有一个类似于 TextChanged 的事件在文本框中输入字符时立即触发，而不是在焦点改变时触发?

Is there an event similar to TextChanged that fires immediately when a character is typed into the textbox, rather than when focus changes?

推荐答案

您可以绑定 Text 属性并使用 UpdateSourceTrigger.

You can bind the Text property and make use of the UpdateSourceTrigger.

UpdateSourceTrigger=PropertyChanged

通过将其设置为 PropertyChanged，您将在每次文本更改时收到通知.

By setting it to PropertyChanged, you will get a notification each and every time the text changes.

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