Singleton Example

public sealed class KeyVaultManager

    {

        private static readonly Lazy<KeyVaultManager>

        lazy =

        new Lazy<KeyVaultManager>

            (() => new KeyVaultManager());

            public static KeyVaultManager Instance { get { return lazy.Value; } }

            private KeyVaultManager()

            {

            }

}

Task

Urls:
https://docs.microsoft.com/en-us/dotnet/standard/parallel-programming/task-based-asynchronous-programming

https://www.c-sharpcorner.com/article/task-and-thread-in-c-sharp/

https://docs.microsoft.com/en-us/dotnet/standard/parallel-programming/





Task
Create Task
Asynchronous programming with tasks.
Parallel programming with tasks


Task : Task is a unit of work, an object denoting an ongoing operation or computation.
Creating a task:

Name space: using System.Threading.Tasks.

Task T = new Task( code ...... );
T.Start();