How to return task<tuple<list<int>, bool> ?

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 public async Task<Tuple<List<int>, bool>> GetQuestionOptions(List<studs> studsList)
{
//code
return new Tuple<List<int>, bool>(new List<int>(), true);
}

What I have tried:

Compilation error "The return type of an async method must be void, Task or Task<t>" ??
Please help me out.
Thanks

Posted 6-Sep-16 19:16pm

madhukrishnahere

Updated 6-Sep-16 22:04pm

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2 solutions

Solution 1

Read this : c# - The return type of an async method must be void, Task or Task<T> - Stack Overflow[^]

Posted 6-Sep-16 20:04pm

Mehdi Gholam

Comments

CPallini 7-Sep-16 2:42am

5.

Mehdi Gholam 7-Sep-16 9:37am

Thanks!

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Bernhard Hiller · Accepted Answer · 2016-09-06T22:04:00

Solution 2

Returning a simple result asynchronously is a pain.
Following code compiles:

C#

public async Task<Tuple<List<int>, bool>> GetQuestionOptions(List<studs> studsList)
{
    var tmp = new Tuple<List<int>, bool>(new List<int>(), true);
    return await Task.FromResult(tmp);
}

The magic is in return await Task.FromResult.

Posted 6-Sep-16 22:04pm

Bernhard Hiller

Comments

madhukrishnahere 1-Jan-17 22:47pm

Thank you