public void RemoveItem()
        {
            DataValueCollection <string> collection = new DataValueCollection <string>();

            collection.Set("Name", "Bob");
            collection.Set("Age", 25);

            collection.Remove("Name");

            Assert.IsFalse(collection.IsSet("Name"));
            Assert.IsTrue(collection.IsSet("Age"));
        }
        public void Count()
        {
            DataValueCollection <string> collection = new DataValueCollection <string>();

            collection.Set("Name", "Bob");
            collection.Set("Age", 25);

            Assert.AreEqual(2, collection.Count);

            collection.Remove("Name");

            Assert.AreEqual(1, collection.Count);
        }