## DropDownItemCollecti indexer Gets or sets the element at the specified index. ```csharp public string this[int index] { get; set; } ``` ## Examples Shows how to insert a combo box field, and edi......"One", "Two", "Three" }; FormField comboBoxField = builder.I...doc.Save(ArtifactsDir + "FormFields.DropDownItemCollecti.html");...