C#

using System;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.Collections; // for using ArrayList to save shapes
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace PaintBrush
{
    public class SaveBinary
    {
        // Create file to save the data
        FileStream fs = new FileStream("Data", FileMode.Create);
        // Create binary formatter object:
        BinaryFormatter BF = new BinaryFormatter();
        BF.Serialize(fs, "1234");
        fs.Close();
    }
}

string[] default_columns { "VlFile", "EquipName", "JobName", "NickName", "Operator", "EquipmentStartTime", "JobComment", "EquipTypeDesc" };
foreach (string s in default_columns)
{
  //Here i need to add the a column with the name in S                   
}

#region Scanner
           for (int i = 0; i < readInput.Length; i++) // beginning to read char one by one
           {
               char x = readInput[i];
               #region Whitespace
               if (char.IsWhiteSpace(x)) //checking for whitespaces
               {
                   continue;
               }
               #endregion
               #region stringliteral
               else if (x == '"') //checking for " and proper"
               {
                   i++;
                   //x = readInput[i];
                   StringBuilder adder = new StringBuilder();
                   do
                   {x = readInput[i];
                       MessageBox.Show(x.ToString() + "testing");
                       adder.Append(x);                                //continuing till next " is found
                       i++;
                       if (i == readInput.Length)
                       {
                           MessageBox.Show("WRONG");
                           break;
                       }


                   } while (x != '"' && i < readInput.Length);
                   whole.Add(adder);

               }
               #endregion
               #region syntax
               else if (char.IsLetter(x) || x == '_' && x!='"') // checking for syntax
               {
                   StringBuilder adder = new StringBuilder();
                   do
                   {
                       x = readInput[i];
                       MessageBox.Show(x.ToString() + "Letter Only");
                       adder.Append(x);
                       i++;
                       if (i == readInput.Length)
                       {
                           break;
                       }


                   } while ((char.IsLetter(x) || x == '_' && x!='"') && i < readInput.Length);
                   whole.Add(adder);
               }
               #endregion
               #region digitliteral
               else if (char.IsDigit(x)) // checking for digits
               {
                   StringBuilder adder = new StringBuilder();
                   do
                   {x = readInput[i];
                       MessageBox.Show(x.ToString() + "Is Digit");
                       adder.Append(x);
                       i++;
                       if (i == readInput.Length)
                       {
                           break;
                       }


                   }
                   while (char.IsDigit(x) && i < readInput.Length);
                   whole.Add(adder);
               }
               #endregion
               #region comments
               else if (x == '$') //checking for comments
               {
                   i++;
                   x = readInput[i];
                   do
                   {
                       MessageBox.Show(x.ToString() + "testing comments"); //continuing till next " is found
                       i++;
                       if (i == readInput.Length)
                       {
                           MessageBox.Show("WRONG");
                           break;
                       }
                       x = readInput[i];

                   } while (x != '\n' && i < readInput.Length);

               }
               #endregion



           }
           #endregion