An example of delegate Command to yet another Command.

redalert2c

于 2013-02-22 14:24:00 发布

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本文介绍了如何使用SimpleDelegateCommand创建匿名命令，并通过传递委托来触发实际的命令操作。此外，还探讨了如何将这些命令与窗口的InputBinding相结合，实现特定的手势操作。

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YOu can delegate a command to yet another comand, this is useful when you can create some anonymouse comnad and the real command action is perfomred by a command that is embedded in the anonymous commnad. Let's see an example.

 if (parameters.Gesture != null)
                {
                    var command =
                        new SimpleDelegateCommand(
                            (p) =>
                            m_chromeManager.CreateWindow(parameters.WindowFactoryID, parameters.InitialParameters));
                    //button.SetValue(ButtonBase.CommandProperty,
                    //                command);
                    m_shell.MainWindow.InputBindings.Add(new InputBinding(command, parameters.Gesture));
                }

s you can see , we can create a SimpleDelegateCommand, and in the args passed to it, you can pass in one delegate, and this delegate can dispatch and call the real command underneath .

Another point of info that you may need to notice is that, in the example above, the top windows's InputBinding is used to set the CommandBindings.

Joe,