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得到WPF附加属性我已经定制的附加属性:无法通过反射
public class Freezable
{
public static bool GetIsFrozen(DependencyObject obj)
{
return (bool)obj.GetValue(IsFrozenProperty);
}
public static void SetIsFrozen(DependencyObject obj, bool value)
{
obj.SetValue(IsFrozenProperty, value);
}
public static readonly DependencyProperty IsFrozenProperty =
DependencyProperty.RegisterAttached("IsFrozen", typeof(bool), typeof(UIElement), new UIPropertyMetadata(false));
}
此属性,代码和值测试存储成功。
Freezable.SetIsFrozen(control, value);
var correctValue =Freezable.GetIsFrozen(control);
但是,然后我试图通过反射得到我的财产。我有一个异常,无法找到属性(getMethod为null,setMethod为null)!
public void FindAttachedProperty(Type elementType, string propertyName)
{
MethodInfo getMethod = elementType.GetMethod("Get" + propertyName, BindingFlags.Public | BindingFlags.Static);
MethodInfo setMethod = elementType.GetMethod("Set" + propertyName, BindingFlags.Public | BindingFlags.Static);
}
Canvas.Left,Canvas.Right working well and without any problems。我做错了什么,为什么我不能得到我的附属财产!?