## SdtListItemCollectio.Add method Adds an item to this collection. ```csharp public void Add(SdtListItem item) ``` ## Examples Shows how to work with drop down-list structured document tags. ```cs......SdtListItem("Value 1")); Assert.That(listItems[0].Value, Is.EqualTo(listItems[0]...their values. listItems.Add(new SdtListItem("Item 2", "Value 2"));...