setvalue

Been using a Copy method with this code in it in various places in previous projects (to deal with objects that have same named properties but do not derive from a common base class or implement a common interface). New place of work, new codebase - now it's failing at the SetValue with "Object does not match target type" even on very simple examples... and it worked last week.... public static void Copy(object fromObj, object toObj) { Type fromObjectType = fromObj.GetType(); Type toObjectType = toObj.GetType(); foreach (System.Reflection.PropertyInfo fromProperty in fromObjectType

After trying to access ivars using KVC, I have noticed that there was no protection on private and protected ivars. It doesn't matter what I put a in front of the ivar (private or protected keyword) - an ivar is always a public ivar when using KVC method "setValue". Here is my code where all of the seven ivars and properties are changeble outside the class instance: //************ interface file ***************// @interface MyClass : NSObject { @public NSNumber *public_num; @protected NSNumber *protected_num; @private NSNumber *private_num; NSNumber *private_property; } @property (retain)

For properties there are GetGetMethod and GetSetMethod so that I can do: Getter = (Func<S, T>)Delegate.CreateDelegate(typeof(Func<S, T>), propertyInfo.GetGetMethod()); and Setter = (Action<S, T>)Delegate.CreateDelegate(typeof(Action<S, T>), propertyInfo.GetSetMethod()); But how do I go about FieldInfo s? I am not looking for delegates to GetValue and SetValue (which means I will be invoking reflection each time) Getter = s => (T)fieldInfo.GetValue(s); Setter = (s, t) => (T)fieldInfo.SetValue(s, t); but if there is a CreateDelegate approach here? I mean since assignments return a value , can I

I'm having performance problems with using reflection. So I decided to create delegates for the properties of my objects and so far got this: TestClass cwp = new TestClass(); var propertyInt = typeof(TestClass).GetProperties().Single(obj => obj.Name == "AnyValue"); var access = BuildGetAccessor(propertyInt.GetGetMethod()); var result = access(cwp); static Func<object, object> BuildGetAccessor(MethodInfo method) { var obj = Expression.Parameter(typeof(object), "o"); Expression<Func<object, object>> expr = Expression.Lambda<Func<object, object>>( Expression.Convert( Expression.Call( Expression

The reason why I am asking this is because I was recommended by @Greg D (from this question ) to use SetCurrentValue() instead, but a look at the docs and didn't see whats the difference. Or whats does "without changing its value source" mean? SetValue() Sets the local value of a dependency property, specified by its dependency property identifier. SetCurrentValue() Sets the value of a dependency property without changing its value source. Kent Boogaart The MSDN link you provided says it quite well: This method is used by a component that programmatically sets the value of one of its own