Why doesn't Any() work on a c# null object

Question

When calling Any() on a null object, it throws an ArgumentNullException in C#. If the object is null, there definitely aren\'t \'any\', and it should probably return false.

Answer 1

Because Any() it is a extension method like this:

public static bool Any(this IEnumerable enumerable)
{
    if (enumerable == null)
        throw ArgumentNullException("enumerable");
    ...
}