Using Delegate to execute code at the method entry and exit

Question

I have code that does very repetitive things such as logging the method entry and exit. In between, I execute some business logic. Is there a way I could handle that with a Delegate?

Here is what I have so far. However, it is really restrictive due to the func parameters I must passing. Anybody has a better idea?

        Func<Func<int>, int> logAction = new Func<Func<int>, int>(func =>
        {
            try
            {
                Console.WriteLine("Logging...");
                return func();
            }
            finally
            {
                Console.WriteLine("End Logging...");
            }
        });

Answer 1

Postsharp is perfect for this- it is an Aspect Orientated Programming library that features compile time weaving, so it wont impact on performance like run time weaving. This probably doesn't explain much if your new to AOP but basically, it will allow you to declare logging on a method like this:

<Logging> //apply an aspect that will log entrance/exit of method
void MyMethod(params)
{
    //do something that might throw an exception (or not)
}

For an example (and source code) on using postsharp for logging, see http://www.sharpcrafters.com/solutions/logging