System.Data.ConstraintCollection.FindConstraint C# (CSharp) Метод

        internal Constraint FindConstraint(Constraint constraint)
        {
            int constraintCount = List.Count;
            for (int i = 0; i < constraintCount; i++)
            {
                if (((Constraint)List[i]).Equals(constraint))
                    return (Constraint)List[i];
            }
            return null;
        }