TextBox子类中的预定义命令 [英] Predefined commands in TextBox subclass

问题描述

ComponentCommands.MoveFocusUp具有默认的按键手势(Ctrl + Up)，我想在派生自TextBox的自定义类中使用它.
我将TextBox子类化，并添加了以下命令绑定:

ComponentCommands.MoveFocusUp has a default key gesture (Ctrl+Up) I''d like to use in a custom class derived from TextBox.
I''ve subclassed TextBox, added following command bindings:

this.CommandBindings.Add(new CommandBinding(ApplicationCommands.Copy, CopyCommandHandler)); // Ctrl+C
this.CommandBindings.Add(new CommandBinding(ComponentCommands.MoveFocusUp, MoveCurrentLineUpCommandHandler)); // Ctrl+Up

到默认的构造函数，也定义了处理程序.但是，只有CopyCommandHandler响应键盘交互.有任何建议吗?

to the default constructor, and defined handlers too. But only CopyCommandHandler responds to keyboard interaction. Any suggestions?

推荐答案

此解决方案对我有用:
http://www.switchonthecode.com/tutorials/wpf-tutorial-command-绑定和自定义命令 [ ^ ]

This solution worked for me:
http://www.switchonthecode.com/tutorials/wpf-tutorial-command-bindings-and-custom-commands[^]

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