Async and Await in C#

Amit Kumar Singh

8y982Visual Basic .NET

Hi,

I am using Async and await to call 2 methods at a time in main method.It is executing fine.

But in method one value is greater then method 2.So one method 2 completes..Execution comes out of loop.

static void Main()

{

Method1(); 1 Lakh records (Async and await used on method 1)

Method2(); 50 Thousands records

}

Thanks

Amit

3 Replies

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Mageshwaran R6y ago
Hi,
Can you check with the below link:
https://stackoverflow.com/questions/12337671/using-async-await-for-multiple-tasks
Jaish Mathews8y ago
I am not sure about getting you fully. But please make sure that below points are considered.

1. Async operations are only inside individual methods

2. Calling of methods would behave in sync way and for that you need to call wait operator

I couldn't see any wait operator in your call. There are many ways to achieve it. Below is one way to get it inside a console application Main method. I didn't add any asyc operations inside individual methods as that is not our problem statement now.
static void Main(string[] args)

       {



           Method1().Wait();

           Console.WriteLine("Now executes Method2");

           Console.ReadLine();



           Method2().Wait();



           Console.ReadLine();

       }





       private static async Task Method1()

       {

           //Do some async here.

           for (int i = 0; i < 100000; i++)

           {

               Console.WriteLine("Method1: " + i);

           }



       }



       private static async Task Method2()

       {

           //Do some async here.

           for (int i = 0; i < 50000; i++)

           {

               Console.WriteLine("Method2: " + i);

           }

       }
Karthik Chintala8y ago
You could wait for your method 1 to complete its operation with GetAwaiter().GetResult();
static void Main()

{

    Method1();  //1 Lakh records (Async and await used on method 1)

    Method2();    //50 Thousands records

    Method1().GetAwaiter().GetResult();

}
Method1().GetAwaiter().GetResult();

Note that the above line will block the Main console thread until the asynchronous operation is completed.