Apply Attribute with AttributeTargets = Method to all methods in a class

Question

There is an Attribute called DataSourceAttribute in C#. It needs to be declared on each Method again and again. Is it possible to declare it one time at the class level so that I don't need to repeat myself. If so, how?

In Data Driven UnitTesting, the data source need to be specified with the help of this attribute: [DataSource (...),...]. There are about 10-15 such methods, and I do not want to declare the attribute for each method. I'd like to declare it once and have all the methods inherit it from the class level usage.

Answer 1

Take a look at Afterthough. It is a framework that applies custom chunks of code, including properties, methods, attributes to your solution post-compile.