Word Textron .NET component - C#: FormFields

using System;
using Docs.Word;

namespace SampleManager
{
	class FormFields_Create
	{
		internal static Document Main1()
		{
			//	Create a new document and get NodeList of first section
			Document Doc = Document.CreateNew();
			NodeList Nodes = Doc.Sections[0].Nodes;
			
			//	Enable protection from editing for all sections with enabled protection
			Doc.Properties.DocStatus.ProtectionEnabled = true;
			//	Enables protection for the first section of document
			Doc.Sections[0].Style.Protected = true;

//	Add checkbox form field which is checked by default
			Nodes.AddParagraph("Some checkbox option:");
			Nodes.AddParagraph().AddFormField_CheckBox("CheckBox 1", true);
			
			//	Add textbox form field with default text "Hello!" and maximum length of 15
			Nodes.AddParagraph("Some textbox for text input:");
			Nodes.AddParagraph().AddFormField_TextBox("TextBox 1", 15, "Hello!");

//	Add dropdown list form field with items "Item1", "Item2", "Item3"
			Nodes.AddParagraph("Some dropdown listbox:");
			Nodes.AddParagraph().AddFormField_DropList("DropList 1", "Item1", "Item2", "Item3");

return Doc;
		}
	}
}