Calling a method asynchronously in C#?

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I have an that calls a method Foo, which takes a long time. Is there a way to call Foo *asynchronously* so that the rest of the code doesn't have to wait for Foo to finish to carry on?

I am trying:

Task.Run(() => Foo("bar"));

Are there any pros or cons of doing it using Tasks like above? Or is there a better way?

What I have tried:

Task.Run(() => Foo("bar"));

Posted 15-May-22 9:29am

LF FF

Updated 15-May-22 10:00am

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OriginalGriff · Accepted Answer · 2022-05-15T10:00:00

That is what Task.Run does: Task.Run Method (System.Threading.Tasks) | Microsoft Docs[^]
For example:

C#

using System;
using System.Threading.Tasks;
using System.Threading;
					
public class Program
{
	public static void Main()
	{
		Console.WriteLine("Hello World");
		Task.Run(() => Foo("bar"));
		Console.WriteLine("After");
		Thread.Sleep(500);
		Console.WriteLine("Done");
	}
	static void Foo(string s)
	{
		Thread.Sleep(200);
		Console.WriteLine(s);
	}
}

Will give you:

Hello World
After
bar
Done