C#

using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        private SqlConnection conn;
        private string connStr;
        SqlDataAdapter da;
        DataSet ds;
        bool b;

        public Form1()
        {
            InitializeComponent();
            connStr = "Data Source=.\\SQLEXPRESS;AttachDbFilename=" + Application.StartupPath + "\\dbOne.mdf" + ";Integrated Security=True;Connect Timeout=30;User Instance=True";
            conn = new SqlConnection(connStr);
            conn.Open();
            string selectStr = "select * from people";
            da = new SqlDataAdapter(selectStr, conn);
            ds=new DataSet();
            da.Fill(ds,"people");

            da.InsertCommand = new SqlCommand("insert into people(name, age) values (@name, @age)", conn);
            da.InsertCommand.Parameters.Add("@name",SqlDbType.VarChar,50,"name");
            da.InsertCommand.Parameters.Add("@age",SqlDbType.Int,5,"age");

            da.UpdateCommand = new SqlCommand("update people set name=@name, age=@age where id=@id",conn);
            da.UpdateCommand.Parameters.Add("@name",SqlDbType.VarChar,50,"name");
            da.UpdateCommand.Parameters.Add("@age",SqlDbType.Int,5,"age");
            da.UpdateCommand.Parameters.Add("@id",SqlDbType.Int,5,"id");

            da.DeleteCommand = new SqlCommand("delete from people where id=@id",conn);
            da.DeleteCommand.Parameters.Add("@id",SqlDbType.Int,5,"id");

            dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
            dataGridView1.DataSource = ds.Tables["people"];
            txtId.DataBindings.Add("Text",ds.Tables["people"],"id");
            txtName.DataBindings.Add("Text", ds.Tables["people"], "name");
            txtAge.DataBindings.Add("Text", ds.Tables["people"], "age");

            txtId.Enabled = false; txtName.Enabled = false; txtAge.Enabled = false; 
            btnSave.Enabled = false; btnCancel.Enabled = false;
            conn.Close();
        }

        private void btnChange_Click(object sender, EventArgs e)
        {
            b = false;
            txtName.Enabled = true; txtAge.Enabled = true;
            btnNew.Enabled = false; btnDelete.Enabled = false; btnSave.Enabled = true; btnCancel.Enabled = true;
        }

        private void btnSave_Click(object sender, EventArgs e)
        {            
            if (b) // insert new line
            {
                DataRow newLine = ds.Tables["people"].NewRow();
                newLine["name"] = txtName.Text;
                newLine["age"] = txtAge.Text;
                ds.Tables["people"].Rows.Add(newLine);
            }
            da.Update(ds,"people");
        }

        private void btnNew_Click(object sender, EventArgs e)
        {
            b = true;
            int i = ds.Tables["people"].Rows.Count;
            dataGridView1.Rows[i].Selected = true;

            txtId.Text = ""; txtName.Text = ""; txtAge.Text = "";
            txtName.Enabled = true; txtAge.Enabled = true;
            btnSave.Enabled = true; btnCancel.Enabled = true;
        }

        private void btnDelete_Click(object sender, EventArgs e)
        {
            int i = int.Parse(dataGridView1.CurrentRow.Index.ToString());
            ds.Tables["people"].Rows[i].Delete();
            da.Update(ds,"people");
        }


    }
}

private void evtOpenFile_Click(object sender, EventArgs e)
        {
            openFileDialog1.Multiselect = true;
            

            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {

                foreach (String file in openFileDialog1.FileNames)
                {

                    evtNewDocument_Click(sender, e);
                    
                    
                    RichTextBox richTextBox1 = new RichTextBox();

                    richTextBox1 = tabControl1.SelectedTab.Controls[0] as RichTextBox;

                    richTextBox1.LoadFile(openFileDialog1.FileName,RichTextBoxStreamType.PlainText);
                    saveFileDialog1.FileName = openFileDialog1.FileName;

                    FileInfo fi = new FileInfo(openFileDialog1.FileName);
                    string pot = fi.Name;

                    tabControl1.SelectedTab.Text = pot;

                    pot = "";
                }
                

            }
        }

struct chromo_typ
{
	//the binary bit string is held in a std::string
        string bits;  

	float fitness;

	chromo_typ(): bits(""), fitness(0.0f){};
	chromo_typ(string bts, float ftns): bits(bts), fitness(ftns){}
};

Indiv_Truck_Cntrl tempChild = (Indiv_Truck_Cntrl)this.MdiChildren[trxx];
               {
                   Truck_Active.Text = tempChild.Name;
                   //Performance_Log_File("from " + tempChild.Name, " tempChild.port_out = " + tempChild.port_out);
                   Main_Serial_Port1.Write(tempChild.port_out);

                   test_port = Main_Serial_Port1.ReadExisting();
                   //Performance_Log_File(tempChild.Name, " has in test_port = " + test_port);

                   if (test_port == "")
                   {
       // commment
                   }
                   else
                   {
                       Send_Truck_Info(test_port);
                   }
                   tempChild.SEND_SETTINGS_Click();  // goes to Indiv_Truck rat here!!!!!

public class Engine
       {
          private string c_TRUCK_ID;
          public string TRUCK_ID  //IS PART OF THE OUTPUT STREAM, SUGGESTED UDP/BROADCAST SYSTEM
           {
               get { return c_TRUCK_ID;} set { c_TRUCK_ID = value;}
           }

          private string c_TRUCK_NUM;
          public string TRUCK_NUM //THIS IS ASSIGNED WHEN TRUCK IS RECOGNIZED/POLLED
          {
               get { return c_TRUCK_NUM;} set { c_TRUCK_NUM = value; }
          }

          private string c_TRUCK_IP;
          public string TRUCK_IP  //IP ADDRESS RIGHT HERE, COMES FROM INDIVIDUAL SERVER/TRUCK
          {
             get { return c_TRUCK_IP;} set { c_TRUCK_IP = value;}
          }

          public string RPM = "RPM";
          private string c_RPM_var;
          public string RPM_var
          {
             get { return c_RPM_var;} set { c_RPM_var = value;}
          }

          public string GEAR = "GEAR";
          private string c_GEAR_var;
          public string GEAR_var
          {
              get { return c_GEAR_var;} set { c_GEAR_var = value;}
          }
          private string c_GEAR_Name;
          public string GEAR_Name
          {
              get { return c_GEAR_Name; } set { c_GEAR_Name = value; }
          }

          public string OIL_PRES = "OIL PRESSSURE ENG";
          private string c_OIL_PRES_var;
          public string OIL_PRES_var
          {
              get { return c_OIL_PRES_var;} set { c_OIL_PRES_var = value;}
          }

          public string COOLANT_TEMP = "COOLANT TEMP ENG";
          private string c_COOLANT_TEMP_var;
          public string COOLANT_TEMP_var
          {
              get { return c_COOLANT_TEMP_var;} set { c_COOLANT_TEMP_var = value;}
          }

          public string BAT_VOLT = "BATTERY VOLTAGE";
          private string c_BAT_VOLT_var;
          public string BAT_VOLT_var
          {
              get { return c_BAT_VOLT_var;} set { c_BAT_VOLT_var = value;}
          }

          public string TRANS_OUT_RPM = "TRANSMISSION OUTPUT RPM";
          private string c_TRANS_OUT_RPM_var;
          public string TRANS_OUT_RPM_var
          {
              get { return c_TRANS_OUT_RPM_var; } set { c_TRANS_OUT_RPM_var = value; }
          }

          public string FUEL_PRESS = "FUEL PRESSURE ENG";
          private string c_FUEL_PRESS_var;
          public string FUEL_PRESS_var
           {
               get { return c_FUEL_PRESS_var; } set { c_FUEL_PRESS_var = value; }
           }

          public string LOCKUP_CONV = "LOCKUP CONVERTER";  // transmission
          public string c_LOCKUP_CONV_var;
          public string LOCKUP_CONV_var
           {
               get { return c_LOCKUP_CONV_var; } set { c_LOCKUP_CONV_var = value; }
           }

          public string OVER_PRESS = "OVER_PRESS SETPOINT";
          private string c_OVER_PRESS_var;
          public string OVER_PRESS_var
           {
               get { return c_OVER_PRESS_var; } set { c_OVER_PRESS_var = value; }
           }

          public string FRAC_PRESS = "FRAC PRESSURE";
          private string c_FRAC_PRESS_var;
          public string FRAC_PRESS_var
           {
               get { return c_FRAC_PRESS_var;} set { c_FRAC_PRESS_var = value;}
           }

          public string PUMP_LUBE_PRESS = "PUMP LUBE PRESSURE";
          private string c_PUMP_LUBE_PRESS_var;
          public string PUMP_LUBE_PRESS_var
           {
               get { return c_PUMP_LUBE_PRESS_var;} set { c_PUMP_LUBE_PRESS_var = value;}
           }
           public string PUMP_LUBE_TEMP = "PUMP_LUBE TEMPERATURE";
          private string c_PUMP_LUBE_TEMP_var;
          public string PUMP_LUBE_TEMP_var
           {
               get { return c_PUMP_LUBE_TEMP_var;} set { c_PUMP_LUBE_TEMP_var = value;}
           }

          public string PUMP_FLOW = "PUMP FLOW RATE";
          private string c_PUMP_FLOW_var;
          public string PUMP_FLOW_var
           {
               get { return c_PUMP_FLOW_var;} set { c_PUMP_FLOW_var = value;}
           }

          public string ENG_HRS = "ENGINE HOURS";
          private string c_ENG_HRS_var;
          public string ENG_HRS_var
           {
               get { return c_ENG_HRS_var;} set { c_ENG_HRS_var = value;}
           }

          public string ENG_TYPE = "ENGINE TYPE";
          private string c_ENG_TYPE_var;
          public string ENG_TYPE_var
           {
               get { return c_ENG_TYPE_var;} set { c_ENG_TYPE_var = value;}
           }
          private string c_ENG_TYPE_name;
          public string ENG_TYPE_name
          {
              get { return c_ENG_TYPE_name;} set { c_ENG_TYPE_name = value;}
          }

          public string TRANS_TYPE = "TRANSMISSION TYPE";
          private string c_TRANS_TYPE_var;
          public string TRANS_TYPE_var
           {
               get { return c_TRANS_TYPE_var;} set { c_TRANS_TYPE_var = value;}
           }
          private string c_TRANS_TYPE_name;
          public string TRANS_TYPE_name
           {
               get { return c_TRANS_TYPE_name;} set { c_TRANS_TYPE_name = value;}
           }

          public string DIAG = "DIAGNOSTICS";
          private string c_DIAG_var;
          public string DIAG_var
           {
               get { return c_DIAG_var; } set { c_DIAG_var = value; }
           }
       }