Asynchronous programming with async and await in .NET allows you to write code that executes concurrently without blocking the main thread. Here's how it works:
The async keyword is used to mark a method as asynchronous. When a method is marked as async, it can use the await keyword to pause its execution and return control to its caller until the awaited asynchronous operation completes[1][2][3].
The await keyword is used to call an asynchronous method. When the await keyword is applied to an asynchronous operation, such as a method call that returns a Task, the method that contains the await statement is suspended until the awaited operation finishes[1][2][3].
While the asynchronous operation is running, the thread that was executing the method can be used to execute other code, allowing the program to remain responsive[1][2][3].
When the asynchronous operation completes, the method that contains the await statement resumes execution from the point immediately following the await statement[1][2][3].
To run multiple asynchronous tasks in parallel and wait for them all to complete, you can use the Task.WhenAll method[4][5]. This method takes an array of Task objects and returns a single Task that compl...
