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The C# Workshop
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So far, you have created tasks and used the static Task factory methods to run and coordinate such tasks. In earlier versions of C#, these were the only ways to create tasks.
The C# language now provides the async and await keywords to mark a method as asynchronous. This is the preferred way to run asynchronous code. Using the async/await style results in less code and the code that is created is generally easier to grasp and therefore easier to maintain.
Note
You may often find that legacy concurrent-enabled applications were originally created using Task.Factory.StartNew methods are subsequently updated to use the equivalent Task.Run methods or are updated directly to the async/await style.
The async keyword indicates that the method will return to the caller before it has had a chance to complete its operations, therefore the caller should wait for it to complete at some point in time.
Adding the async keyword to a method instructs the...