Reducing duplicate error handling code in C#?

Question

I\'ve never been completely happy with the way exception handling works, there\'s a lot exceptions and try/catch brings to the table (stack unwinding, etc.), but it seems to

Answer 1

Here's what I did recently. It has probably been done elsewhere better, but it seems pretty clean and reusable.

I have a utility method that looks like this:

    public delegate void WorkMethod();

    static public void DoAndRetry(WorkMethod wm, int maxRetries)
    {
        int curRetries = 0;
        do
        {
            try
            {
                wm.Invoke();
                return;
            }
            catch (Exception e)
            {
                curRetries++;
                if (curRetries > maxRetries)
                {
                    throw new Exception("Maximum retries reached", e);
                }
            }
        } while (true);
    }

Then in my application, I use c#'s Lamda expression syntax to keep things tidy:

Utility.DoAndRetry( () => ie.GoTo(url), 5);

This calls my method and retries up to 5 times. At the fifth attempt, the original exception is rethrown inside of a retry exception.