Use reflection to find all public virtual methods and provide an override

Question

I have a project where I want to be able to iterate across an instance of a class and find all methods that are marked public virtual. Then I want to override the instance of the class so that when the method is called I can call a different set of code. I know how to find all methods that are public in a class using reflection, but I cannot figure out how to override virtual methods.

Basically I am giving a proxy object to use, and when they call the method, I want to call a method on the underlying object. I can do this by manually overriding each and every method, but I would like to use something a bit more dynamic.

Interesting question. That would be quite a hack. For what purpose do you want this? — Igby Largeman, Jul 20 '11 at 16:21

score 5 · Answer 1 · answered Jul 19 '11 at 18:35

5

typeof(MyClass)
    .GetMethods(BindingFlags.Public | BindingFlags.Instance)
    .Where(m => m.IsVirtual);

answered Jul 19 '11 at 18:35

abatishchev

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Ok, so now I need a way to substitute that method for a delegate. Meaning that when someone calls it, I want to execute my delegate instead, passing all the arguments from the method call into my delegate. – user852436 Jul 20 '11 at 14:39
@user: Post a new question to ask that. Also see [`DynamicObject.TryGetMember()`](http://msdn.microsoft.com/en-us/library/system.dynamic.dynamicobject.trygetmember.aspx) – abatishchev Jul 20 '11 at 14:41

score 2 · Answer 2 · answered Jul 19 '11 at 18:31

2

MethodBase has an IsVirtual Property.

MethodBase m = typeof(MyClass).GetMethod("MyMethod");
if (m.IsVirtual)
  // yada-yada-yada...

answered Jul 19 '11 at 18:31

LarsTech

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Ok, so now I need a way to substitute that method for a delegate. Meaning that when someone calls it, I want to execute my delegate instead, passing all the arguments from the method call into my delegate. – user852436 Jul 20 '11 at 14:39

Use reflection to find all public virtual methods and provide an override

2 Answers2

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