RetryTask using Task Parallel Library

Have you ever had to implement some form of retry functionality? I have, a couple of times in fact. Common scenarios would be to retry web service requests in the event of CommunicationException, or retry some time consuming method invocation. The parameters for these retry logic would be to wait a specified amount of time and to retry a specified number of times.

A very common retry logic I’ve seen to implement the retry logic is using a while loop to enforce the maximum number of retries, and a Thread.Sleep to perform the wait time. This is an example below.

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