EditUsers.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace SeciControls
{
    public partial class EditUsers : Form
    {
        private DataSet _data = new DataSet();
        public string[,] oldUsers = null;
        public string[,] newUsers = null;

        public EditUsers()
        {
            InitializeComponent();
        }

        private void EnterUser_Load(object sender, EventArgs e)
        {
            if (oldUsers != null)
            {
                for (int i = 0; i < oldUsers.GetLength(0); ++i)
                {
                    try
                    {
                        if (oldUsers.GetLength(1) == 2)
                        {
                            //All users
                            dgv1.Rows.Add(oldUsers[i, 0], oldUsers[i, 1], "User");
                        }
                        else
                        {
                            if (String.IsNullOrEmpty(oldUsers[i, 2]))
                            {
                                dgv1.Rows.Add(oldUsers[i, 0], oldUsers[i, 1], "User");
                            }
                            else
                            {
                                dgv1.Rows.Add(oldUsers[i, 0], oldUsers[i, 1], oldUsers[i, 2]);
                            }
                        }
                    }
                    catch
                    {
                    }
                }
            }
        }

        private void btnOK_Click(object sender, EventArgs e)
        {
            if (checkTable())
            {
                newUsers = new String[dgv1.Rows.Count, 3];
                for (int i = 0; i < dgv1.Rows.Count; ++i)
                {
                        if (dgv1.Rows[i].Cells[0].Value != null) newUsers[i, 0] = dgv1.Rows[i].Cells[0].Value.ToString();
                        if (dgv1.Rows[i].Cells[1].Value != null) newUsers[i, 1] = dgv1.Rows[i].Cells[1].Value.ToString();
                        if (dgv1.Rows[i].Cells[2].Value != null) newUsers[i, 2] = dgv1.Rows[i].Cells[2].Value.ToString();
                }

                DialogResult = DialogResult.OK;
                Close();
            }
        }

        private Boolean checkTable()
        {
            int PICount = 0;
            int ContactCount = 0;

            for (int i = 0; i < dgv1.Rows.Count; ++i)
            {
                if (dgv1.Rows[i].Cells[2].Value == null) continue;

                if (dgv1.Rows[i].Cells[2].Value.ToString() == "PI")
                {
                    ++PICount;
                }
                else if (dgv1.Rows[i].Cells[2].Value.ToString() == "Contact")
                {
                    ++ContactCount;
                }
            }

            if (ContactCount > 1 || PICount > 1)
            {
                MessageBox.Show("There MUST be only one contact and PI for an experiment.", "Invalid", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return false;
            }

            return true;
        }

        private void btnCancel_Click(object sender, EventArgs e)
        {
            DialogResult = DialogResult.Cancel;
            Close();
        }

        private void btnAdd_Click(object sender, EventArgs e)
        {
            dgv1.Rows.Add("", "", "User");
        }

        private void btnDelete_Click(object sender, EventArgs e)
        {
            if (dgv1.SelectedRows.Count > 0)
            {
                dgv1.Rows.RemoveAt(dgv1.SelectedRows[0].Index);
            }
        }
    }
}