How can I run both of these methods 'at the same time' in .NET 4.5?

Question

I have a method which does 2 independent pieces of logic. I was hoping I can run them both at the same time .. and only continue afterwards when both those

Answer 1

Adding to the other answers, you could do something like:

public PewPew SomeMethod(Foo foo)
{
    Task> catsTask = GetAllTheCatsAsync(foo);
    Task> foodTask = GetAllTheFoodAsync(foo);

    // wait for both tasks to complete
    Task.WaitAll(catsTask, foodTask);

    return new PewPew
    {
        Cats = catsTask.Result,
        Food = foodTask.Result
    };
}

public async Task> GetAllTheCatsAsync(Foo foo)
{
    await Task.Delay(7000); // wait for a while
    return new List();
}

public async Task> GetAllTheFoodAsync(Foo foo)
{
    await Task.Delay(5000); // wait for a while
    return new List();
}