Word wrap in C Sharp

wordwrap.cs

using System;
using System.Collections;
using System.Linq;
					
public class Program
{
    class StringHelper
    {
        public static ArrayList WordWrap(string text, int maxLength = 86)
        {
            ArrayList final = new ArrayList();
            string tmpText = text.Trim();
            string[] spaces = { " ", "\n", "\r\n" };

            while (tmpText != "")
            {
                if (tmpText.Length <= maxLength)
                {
                    final.Add(tmpText.Trim());
                    tmpText = "";
                } 
                else
                {
                    int tmpLimit = maxLength;
                    string tmpFinal = tmpText.Substring(0, maxLength);
                    string lastChar = tmpFinal.Substring(tmpFinal.Length - 1);

                    if (spaces.Contains(lastChar) == false)
                    {
                        int idxLastSpace = 0;
                        foreach (string space in spaces)
                        {
                            int tmpLastSpace = tmpFinal.LastIndexOf(space);
                            if (tmpLastSpace > idxLastSpace)
                            {
                                idxLastSpace = tmpLastSpace;
                            }
                        }

						Console.WriteLine(idxLastSpace);
                        tmpLimit = idxLastSpace;
                        tmpFinal = tmpFinal.Substring(0, tmpLimit);
                    }

                    tmpText = tmpText.Substring(tmpLimit, tmpText.Length - tmpLimit).Trim();
                    final.Add(tmpFinal);
                }
            }

            return final;
        }
    }

	public static void Main()
	{
		string words = "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.";
		ArrayList data = StringHelper.WordWrap(words, 30);
		foreach (string word in data)
		{
			Console.WriteLine(word);
		}
	}
}