CNSA-212-FP/Louis'-Pharmacy_CNSA212-FP/frmRefillAdd.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Net.NetworkInformation;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Louis__Pharmacy_CNSA212_FP
{
    public partial class frmRefillAdd : Form
    {
        private static bool isAdd;

        public frmRefillAdd(bool isNew)
        {
            isAdd = isNew;
            InitializeComponent();

            if (isNew)
            {
                lblPurpose.Text = "Add Refill";
                btnAdd.Text = "Add";
            }
            else
            {
                lblPurpose.Text = "Edit Refill";
                btnAdd.Text = "Edit";
            }
        }

        private void frmRefillAdd_Load(object sender, EventArgs e)
        {
            txtRefillID.Enabled = false;

            if (isAdd)
            {
                double nextID = PharmacyDataTier.GetNextRefillID();
                txtRefillID.Text = nextID.ToString();
            }
            else
            {

            }
        }

        public void FillRefill(string refillID)
        {
            DataSet ds = new DataSet();
            PharmacyDataTier data = new PharmacyDataTier();

            ds = PharmacyDataTier.RefillSearch(refillID);
            txtRefillID.Text = ds.Tables[0].Rows[0]["Refill_id"].ToString();
            txtRefillDate.Text = ds.Tables[0].Rows[0]["RefillDate"].ToString();
            txtPatientID.Text = ds.Tables[0].Rows[0]["Patient_id"].ToString();
            txtMedicationID.Text = ds.Tables[0].Rows[0]["Medication_id"].ToString();
            txtRxNumber.Text = ds.Tables[0].Rows[0]["RxNum"].ToString();
        }

        private void btnAdd_Click(object sender, EventArgs e)
        {
            string refillID = "";
            DateTime date = new DateTime();
            string patientID = "";
            string medicationID = "";
            string rxNum = "";
            string numRefills = "";
            string pastNumRefills = "";

            rxNum = txtRxNumber.Text.Trim();

            DataSet ds = new DataSet();

            ds = PharmacyDataTier.NumberofRefills(rxNum);

            if (ds.Tables[0].Columns[0] == ds.Tables[0].Columns[1])
            {
                MessageBox.Show("This prescription has reached the maximum number of refills.", "Max Refill", MessageBoxButtons.OK, MessageBoxIcon.Error );
            }
            else
            {
                if (isAdd)
                {
                    refillID = txtRefillID.Text.Trim();
                    date = DateTime.Parse(txtRefillDate.Text.Trim());
                    patientID = txtPatientID.Text.Trim();
                    medicationID = txtMedicationID.Text.Trim();

                    PharmacyDataTier.AddRefill(refillID, date, patientID, medicationID, rxNum);
                    PharmacyDataTier.PastRefills(rxNum);
                }
                else
                {
                    refillID = txtRefillID.Text.Trim();
                    date = DateTime.Parse(txtRefillDate.Text.Trim());
                    patientID = txtPatientID.Text.Trim();
                    medicationID = txtMedicationID.Text.Trim();
                    rxNum = txtRxNumber.Text.Trim();

                    PharmacyDataTier.UpdateRefill(refillID, date, patientID, medicationID, rxNum);
                }
            }
        }
    }
}