RoutedUICommand 的 ownerType 是什么

Question

我正在尝试了解 constructor parameters of RoutedUICommand。

ownerType 参数有什么用？
仅将 null 或 typeof(object) 作为 ownerType 传递是有效的解决方案吗？
调用空构造函数时ownerType的值是多少？

我当前的上下文如下：

public static class CustomApplicationCommands
{
    public static RoutedUICommand SettingsCommand = new RoutedUICommand(
        text: "Opens the settings window",
        name: nameof(SettingsCommand),
        ownerType: typeof(object), // ???
        inputGestures: new InputGestureCollection(new InputGesture[] {
            new KeyGesture(Key.F10)
        })
    );
}

欢迎随时询问更多信息。我将非常感谢您的回答。谢谢！

Answer 1

What is the ownerType argument for?

它在内部用于 convert commands to and from strings, e.g., when reading or writing Xaml. It's also used in computing the Text property。

Is it a valid solution to just pass null or typeof(object) as ownerType?
What is the value of ownerType, when calling the empty constructor?

是的，您可以传递 null，这确实是调用默认构造函数时发生的情况。

RoutedUICommand 的 ownerType 是什么

What is the ownerType of RoutedUICommand

c#

wpf

routed-commands