Caliburn Micro中TextBox的GotFocus事件？

Question

我正在使用Calibrun Micro和WPF，我有一个textBox，当我收到焦点时，我想在ViewModel中调用一个方法，当它离开LostFocus时也是如此。

Answer 1

You can use the Message.Attach syntax to hook on the GotFocus and LostFocus event

The following code will call the GotFocusMethod and LostFocusMethod on your viewmodel:

<TextBox cal:Message.Attach="[Event GotFocus] = [Action GotFocusMethod]; 
                 [Event LostFocus] = [Action LostFocusMethod]" />

Note: don't forget the separating the actions with a semicolon ; when you declare multiple actions.