Creating an IEnumerable<> from a generator method using a factory function

Question

I have a factory function, and want to use it to create an Enumerable. In C# I didn't find a straight-forward declarative way to do the job. So I did it like this:

public IEnumerable<Contact> Get()
{
    return Enumerable.Range(1, 5).Select(x => GenerateRandomContact());
}

Is there any better way?

// Expected format
public IEnumerable<Contact> Get()
{
    return Enumerable.Generate(GenerateRandomContact).Take(5);
}

Answer 1

Something like:

public static IEnumerable<T> Generate(Func<T> generator)
{
    while(true)
        yield return generator.Invoke();
}

But you can't extend static classes. So you should place it in a helper class.