title: Is it possible to modify a method body at run-time in .NET?
body: <p>I know that it is possible (in theory) to create a new type at run-time, but is it possible to modify a method body of an existing type at run-time? My plan (if I can get this to work) is to tag up methods with a custom attribute, and then at run-time search for methods with the attribute, and insert some of my own code into the method body.</p>
  
  <p>Any suggestions?</p>
  
  <p>I suppose if I can't get that approach to work, I could always go with a virtual method in a base class (with the attributes), combined with a static factory to spit out a derived dynamic type with my run-time generated method in the child class. This would not be quite as clean to use though.</p>