当将文本键入到TextBox中时，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才触发；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.

是否存在类似于TextChanged的事件，当在文本框中键入字符时而不是在焦点改变时会立即触发 ?

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

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

UpdateSourceTrigger=PropertyChanged

通过将其设置为PropertyChanged，每当文本更改时，您都会收到一条通知.

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

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