1.1 KiB
1.1 KiB
释义
本不属于某个对象的属性，在被需要的时候后来附加;在特定环境下，对象才具有的属性，如当一个控件在Grid中时，会附加Grid.Column属性等
本质上是依赖属性 用clr属性包装时不同，是采用两个方法
public static int GetMyProperty(DependencyObject obj)
{
return (int)obj.GetValue(MyPropertyProperty);
}
public static void SetMyProperty(DependencyObject obj, int value)
{
obj.SetValue(MyPropertyProperty, value);
}
// Using a DependencyProperty as the backing store for MyProperty. This enables animation, styling, binding, etc...
public static readonly DependencyProperty MyPropertyProperty =
DependencyProperty.RegisterAttached("MyProperty", typeof(int), typeof(ownerclass), new PropertyMetadata(0));
把年级附加属性附加给人
class Human:DependencyObject
{
}
Human human=new Human()
School.SetMyProperty(human,6)//设置属性
int grade=School.GetMyProperty(human)//得到属性值