WPF之Command基础

2024-11-03 09:37:42

1、界面布局,文本框和按钮

WPF之Command基础

2、声明并定义命令private RoutedCommand sayCmd = new RoutedCommand("Say", typeof(MainWindow));

WPF之Command基础

8、命令可执行逻辑e.CanExecute = myText.Text.ToString() == "" ? false : true;

WPF之Command基础

10、执行效果如下

WPF之Command基础
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