WPF可编辑组合框IsFocused问题
我正在通过修改 ComboBox ControlTemplate 来开发带水印的 ComboBox。当 ComboBox 不处于可编辑模式时一切都很好，但是当我将编辑模式更改为 True 时，IsFocused 属性永远不会设置为 True。这是因为在编辑模式下，ComboBox 使用TextBox。这是此 StackOverflow 的精确副本问题：。该问题没有得到答复。
如果您知道如何解决此问题，请留言，或者请指出提供 Watermark ComboBox 实现的链接。 谢谢， 雷伊.
I am developing a Watermarked ComboBox by modifying the ComboBox ControlTemplate. Everything is fine when the ComboBox is not in an editable mode, but when I change the edit mode to True, the IsFocused property is never set to True. This is because in edit mode, the ComboBox is using a TextBox. This is an exact copy of this StackOverflow question: . There are no responses to that question.
Please drop a line if you know how to solve this, or please point me to links that provide a Watermark ComboBox implementation.
Thanks,
Rey.
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您可以尝试使用
IsKeyboardFocused或IsKeyboardFocusWithin相反You could try to use the
IsKeyboardFocusedorIsKeyboardFocusWithininstead尝试使用位于ComboBox<内的TextBox控件的IsFocused或IsKeyboardFocused或IsKeyboardFocusWithin属性/em> 控制。可以在 e.OriginalSource（TextChangedEventArgs 属性）中找到文本框。
这对我有用。
Try using the IsFocused or IsKeyboardFocused or IsKeyboardFocusWithin properties of the TextBox control which is within the ComboBox control. The TextBox can be found at e.OriginalSource(TextChangedEventArgs property).
It worked for me.