Which is the best way to add a retry/rollback mechanism for sync/async tasks in C#?

Question

Imagine of a WebForms application where there is a main method named CreateAll(). I can describe the process of the method tasks step by step as follows:

1) Stores to da

Answer 1

For me this sounds like 'Distributed Transactions', since you have different resources (database, service communication, file i/o) and want to make a transaction that possible involves all of them.

In C# you could solve this with Microsoft Distributed Transaction Coordinator. For every resource you need a resource manager. For databases, like sql server and file i/o, it is already available, as far as i know. For others you can develop your own.

As an example, to execute these transactions you can use the TransactionScope class like this:

using (TransactionScope ts = new TransactionScope())
{
    //all db code here

    // if an error occurs jump out of the using block and it will dispose and rollback

    ts.Complete();
}

(Example taken from here)

To develop your own resource manager, you have to implement IEnlistmentNotification and that can be a fairly complex task. Here is a short example.