public static void OnSourceChanged(DependencyObject dp, DependencyPropertyChangedEventArgs args)
{
GeneralObject edit = (GeneralObject)dp;
GeneralObject source = args.NewValue as GeneralObject;
if (source == null)
{
return;
}
edit.CopyFrom(source);
//对象变为未修改,不是新的
edit.IsNew = false;
edit.IsModified = false;
}