Hi,

I tried this out with the following code and it's working fine for me.

        private void button1_Click(object sender, EventArgs e)
        {
            ValueList valueList = new ValueList();
            valueList.ValueListItems.Add(0, "Apple");
            valueList.ValueListItems.Add(1, "Banana");
            valueList.ValueListItems.Add(2, "Cherry");

            ValueList clonedValueList = valueList.Clone();

            foreach (ValueListItem item in clonedValueList.ValueListItems)
            {
                Debug.WriteLine(item.DisplayText, item.DataValue.ToString());
            }                
        }

Result:

0: Apple
1: Banana
2: Cherry