摘要： Here's a couple classes I've found helpful when writing WPF & Silverlight applications, which I've named simply Command and CommandHelper. Sometimes, you just want to do simple commanding stuff, and you don't need the overhead of RoutedCommand. (Also, Silverlight doesn't have RoutedCommand) The Command class below gives you a quick & easy way to define commands and ways to invoke them: keyboard shortcuts, context menus, toolbars, etc. 阅读全文