Can I access ItemsHost of ItemsControl using reflection?

问题

I'm creating custom ItemsControl that is derived from DataGrid. I need to access ItemsHost that is the Panel that actually holds rows of DataGrid. I have seen som ugly tricks to do that but I consider them worse then using reflection. So can I access ItemsHost using reflection ? And how ?

回答1:

Yes I can. It is simple - I've just created property in class inheriting from DataGrid:

protected Panel ItemsHost {
    get {
        return (Panel) typeof (MultiSelector).InvokeMember("ItemsHost",
            BindingFlags.NonPublic | BindingFlags.GetProperty | BindingFlags.Instance,
            null, this, null);
    }
}

It works like a charm :). I can get the value of ItemsHost internal property of the ItemsControl class. This way I can access any non-protected properties.

来源：https://stackoverflow.com/questions/5056728/can-i-access-itemshost-of-itemscontrol-using-reflection