How to implement task based interface method in C#

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public class ICountry<t>
{

C#

Task<IEnumerable<T>> GetAllAsync();

}

public class Country<t>:ICountry<t>
{
public async Task<ienumerable><t>> GetAllAsync()
{
//return await _Context.Set<t>().ToList();

error is

C#

'List<t>' does not contain a definition for 'GetAwaiter' and no extension method 'GetAwaiter' accepting a first argument of type 'List<t>' could be found (are you missing a using directive or an assembly reference?)

}
}

What I have tried:

i try this

public async Task<ienumerable><t>> GetAllAsync()
{
return await _Context.Set<t>().ToList();
// error
'List<t>' does not contain a definition for 'GetAwaiter' and no extension method 'GetAwaiter' accepting a first argument of type 'List<t>' could be found (are you missing a using directive or an assembly reference?)

}
it show me the error
List<t> does not contain defination for getawaiter no extension method

Posted 27-Aug-16 12:04pm

awaisshabir

Updated 27-Aug-16 19:39pm

v2

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BillWoodruff · Answer 1 · 2016-08-27T13:30:00

See if this gives you some ideas:

C#

using System;
using System.Collections.Generic;
using System.Threading.Tasks;

namespace YourNameSpace
{
    public interface ICountry<T> 
    {
        Task<IEnumerable<T>> GetAllAsync();
    }

    public class AwaitEx<T> : ICountry<T>
    {
        public async Task<IEnumerable<T>> GetAllAsync(???? context)
        {
            // ???? return await context.Set(????);
        }
    }
}

You need to show code that will tell us what 'Context is.