What are cancellation tokens in C#?

What are cancellation tokens in C#?

Cancellation tokens in C# are used to signal that an operation should be canceled. They are part of the Task Parallel Library.

How do I create a cancellation token in my code?

You can create a cancellation token by using the CancellationTokenSource class. Here's a simple example:

var cts = new CancellationTokenSource();
CancellationToken token = cts.Token;

Can I use cancellation tokens with async methods?

Yes, cancellation tokens work well with async methods. You can pass the token to the async method and check its status to cancel the operation.

What happens if I don't check the cancellation token?

If you don't check the cancellation token, your operation may continue running even if a cancellation request has been made, potentially leading to resource leaks or unresponsive applications.