Does LINQ to objects stop processing Any() when condition is true?

Question

Consider the following:

bool invalidChildren = this.Children.Any(c => !c.IsValid());

This class has a collection of child objects that h

Answer 1

Here's a quick and dirty empirical test to see for yourself:

class Kebab
{
    public static int NumberOfCallsToIsValid = 0;

    public bool IsValid()
    {
        NumberOfCallsToIsValid++;
        return false;
    }
}

...

var kebabs = new Kebab[] { new Kebab(), new Kebab() };
kebabs.Any(kebab => !kebab.IsValid());

Debug.Assert(Kebab.NumberOfCallsToIsValid == 1);

The result is that yes, the Any LINQ operator stops as soon as a collection item matches the predicate.