I have just passed this article online: C# Corner and C# Corner and his article (a software developer with over 13 years of experience) recommended using System.Random as follows:

private int RandomNumber(int min, int max)
{
    Random random = new Random();
    return random.Next(min, max); 
}

Isn't that would give him the same number every time ??

Edit:
So my question will become: How does Random choose its seed? a constant or current time value?

Thanks