如果任何人绊倒再次介绍如何通过反射来提高它:
var args = FormatterServices.GetUninitializedObject(typeof(SizeChangedEventArgs)) as SizeChangedEventArgs;
Debug.Assert(args != null);
var field = typeof(SizeChangedEventArgs).GetField("_previousSize", BindingFlags.Instance | BindingFlags.NonPublic);
Debug.Assert(field != null);
field.SetValue(args, new Size(0,0));
field = typeof(SizeChangedEventArgs).GetField("_element", BindingFlags.Instance | BindingFlags.NonPublic);
Debug.Assert(field != null);
field.SetValue(args, GraphicsWrapper);
field = typeof(RoutedEventArgs).GetField("_source", BindingFlags.Instance | BindingFlags.NonPublic);
Debug.Assert(field != null);
field.SetValue(args, GraphicsWrapper);
field = typeof(RoutedEventArgs).GetField("_routedEvent", BindingFlags.Instance | BindingFlags.NonPublic);
Debug.Assert(field != null);
field.SetValue(args, SizeChangedEvent);
GraphicsWrapper.RaiseEvent(args);
...其中th e GraphicsWrapper
是您希望从中提出的WPF控件。
这和Type.GetField()/ FieldInfo.SetValue解决了我的问题。 – 2009-07-29 12:16:18