Unknown Sample .dll - Printable Version

Code:
using Microsoft.VisualBasic;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;

public class Treatment
    {

        //----- Private variables (attributes of the instantiated object), requires accessor/mutator methods seen below to change/retrieve values

        private string treatID;
        private string actionTaken;
        private byte totHours;
        private string medPrescribed;
        private float medCost;
        private float hourlyFee;
        private byte diagCode;
        //------------------------//

        //----- Default constructor. Sets basic values for the attributes of the object when it is first instantiated
        public Treatment()
        {
            treatID = "";
            actionTaken = "";
            totHours = 0;
            medPrescribed = "";
            medCost = 0;
            hourlyFee = 40;
            diagCode = 1;
        }
        //---------------------//

        //-----Accessors/Mutators (Get/Set)
        public string TreatmentID
        {
            get
            { return treatID; }
            set
            { treatID = value; }
        }
        public string ActionTaken
        {
            get
            { return actionTaken; }
            set
            { actionTaken = value; }
        }
        public byte TotalHours
        {
            get
            { return totHours; }
            set
            { totHours = value; }
        }
        public string MedicationPrescribed
        {
            get
            { return medPrescribed; }
            set
            { medPrescribed = value; }
        }
        public float MedicationCost
        {
            get
            { return medCost; }
            set
            { medCost = value; }
        }
        public float HourlyFee
        {
            get
            { return hourlyFee; }
            set
            { hourlyFee = value; }
        }
        public byte DiagnosisCode
        {
            get
            { return diagCode; }
            set
            {
                int y;
                string dCode = value.ToString();
                bool result = int.TryParse(dCode, out y);
                while (result == false || Convert.ToInt32(dCode) <= 0)
                {
                    dCode = Interaction.InputBox("The diagnostic code must be a number from 1-100.\nPlease enter the correct diagnostic code.", "Input Error");
                }                
            }
        }
        //--------------------------------------------//

        //----Class methods. I think I messed this up. I believe the requirements stated that I needed to store the value calculated by the first method inside the class,
        //----Ended up storing it on the form that I created.
        public double CalcTreatmentCost(float insuranceCoverageAmount) 
        { return ((totHours * hourlyFee) + (medCost - insuranceCoverageAmount)); }

        public void PrintTreatInfo()
        {
            MessageBox.Show("         Treatment ID: \n" + treatID +
                            "         Action Taken: \n" + actionTaken +
                            "          Total Hours: \n" + totHours.ToString() +
                            "Medication Prescribed: \n" + medPrescribed +
                            "      Medication Cost: \n" + medCost.ToString("C2") +
                            "           Hourly Fee: \n" + hourlyFee.ToString("C2") +
                            "      Diagnostic Code: \n" + diagCode.ToString());                             
        }
    }