public Theater1(Show show, Customer customer, int theater)
        {
            InitializeComponent();
            switch (THEATER)
            {
            case 1: listShows = Theater1.ReadXML <Show>(tab1path); break;      //get shows information

            case 2: listShows = Theater1.ReadXML <Show>(tab2path); break;      //get shows information

            case 3: listShows = Theater1.ReadXML <Show>(tab3path); break;      //get shows informationbreak;
            }
            int inde = 0; for (int i = 0; i < listShows.Count; i++)

            {
                if (listShows.ElementAt(i).Name == show.Name)
                {
                    inde = i; i = listShows.Count;
                }
            }                                                                                                                                            //gets index

            //all global vars for a particular customer
            INDEX    = inde;     //passing the index of the  show in the list of showws
            CUSTOMER = customer; //passing who the customer is
            SHOW     = show;     //passing show selected info
            THEATER  = theater;
        }
        private void Theater1_Load(object sender, EventArgs e)
        {
            AlreadyReservedShow = false;
            CreateButtons();
            switch (THEATER)
            {
            case 1: listShows = Theater1.ReadXML <Show>(tab1path); break;                                 //get shows information

            case 2: listShows = Theater1.ReadXML <Show>(tab2path); break;                                 //get shows information

            case 3: listShows = Theater1.ReadXML <Show>(tab3path); break;                                 //get shows informationbreak;
            }
            foreach (Button a in buttonArray)                                                             //for the whole theater seats
            {
                foreach (Viewer b in listShows.ElementAt(INDEX).viewers)                                  //check everyone in the show, all the viewers
                {
                    foreach (string c in b.Seating)                                                       //if their seats
                    {
                        if (a.Text == c)                                                                  //match up with the button
                        {
                            a.BackColor = Color.Red;                                                      //then turn it red indicate taken
                            a.Enabled   = false;                                                          //disable reserved seats
                            if ((b.Firstname == CUSTOMER.Firstname) && (b.Lastname == CUSTOMER.Lastname)) //checks to see if the vewer matches with the customer
                            {
                                AlreadyReservedShow = true;
                            }                                 // bool indicating person already in show
                        }
                    }
                }
            }
        }
        private void button5_Click(object sender, EventArgs e)
        {
            switch (TicketsTab.SelectedTab.Name)
            {
            case "Tab2":
                sched = EmployeeSellTickets.ReadXML <Show>(tab2path);
                if (schedLB2.SelectedItem != null)
                {
                    Show     selectedshow = (Show)schedLB2.SelectedItem;
                    Theater1 theater1     = new Theater1(selectedshow, CUSTOMER, 2);
                    theater1.ShowDialog();
                }
                else
                {
                    MessageBox.Show("Select a show please");
                } break;

            case "Tab3":
                sched = EmployeeSellTickets.ReadXML <Show>(tab3path);
                if (schedLB3.SelectedItem != null)
                {
                    Show     selectedshow = (Show)schedLB3.SelectedItem;
                    Theater1 theater1     = new Theater1(selectedshow, CUSTOMER, 3);
                    theater1.ShowDialog();
                }
                else
                {
                    MessageBox.Show("Select a show please");
                } break;

            default:
                sched = EmployeeSellTickets.ReadXML <Show>(tab1path);
                if (schedLB.SelectedItem != null)
                {
                    Show     selectedshow = (Show)schedLB.SelectedItem;
                    Theater1 theater1     = new Theater1(selectedshow, CUSTOMER, 1);
                    theater1.ShowDialog();
                }
                else
                {
                    MessageBox.Show("Select a show please");
                } break;
            }
        }
        private void button2_Click(object sender, EventArgs e)
        {
            bool AtLeast1Picked = false;

            //List<Customer> custXML = Theater1.ReadXML<Customer>("..\\..\\Customer.xml"); //get all the customers info

            if (!(AlreadyReservedShow))
            {
                //if he isn't in the list of viewers add them
                Viewer currentcustomer = new Viewer(CUSTOMER.Firstname, CUSTOMER.Lastname, CUSTOMER.Seats);
                listShows.ElementAt(INDEX).viewers.Add(currentcustomer);//access current show in list of shows and adding customer to that show
            }
            else
            {
                Viewer oldcust = new Viewer();
                foreach (Viewer t in listShows.ElementAt(INDEX).viewers)
                {
                    if ((t.Firstname == CUSTOMER.Firstname) && (t.Lastname == CUSTOMER.Lastname))
                    {
                        oldcust = t;
                    }
                }
                listShows.ElementAt(INDEX).viewers.Remove(oldcust);
                listShows.ElementAt(INDEX).viewers.Add(oldcust); //to put them at the end
            }

            foreach (Button p in buttonArray)
            {
                if (p.BackColor == Color.Yellow)
                {
                    //add the yellow seats selected to persons listing
                    int count = listShows.ElementAt(INDEX).viewers.Count;
                    listShows.ElementAt(INDEX).viewers.ElementAt(count - 1).Seating.Add(p.Text); //add to the viewers seating list
                    AtLeast1Picked = true;                                                       //make it true indicate person picked at least one
                }
            }

            if (AtLeast1Picked)
            {
                foreach (Button reserve in buttonArray)
                {
                    if (reserve.BackColor == Color.Yellow)
                    {
                        reserve.BackColor = Color.Red;
                        reserve.Enabled   = false;
                    }
                }

                /*Customer cust = new Customer();
                 *
                 * foreach (Customer a in custXML)
                 * {
                 *  if (a.Firstname == CUSTOMER.Firstname)
                 *  {
                 *      cust = a;
                 *  }
                 * }
                 * custXML.Remove(cust);
                 * custXML.Add(CUSTOMER);
                 * Theater1.WriteXML<Customer>("..\\..\\Customer.xml", custXML);*/
                switch (THEATER)
                {
                case 1: Theater1.WriteXML <Show>(tab1path, listShows); break;

                case 2: Theater1.WriteXML <Show>(tab2path, listShows); break;

                case 3: Theater1.WriteXML <Show>(tab3path, listShows); break;
                }
                AtLeast1Picked = false;
                MessageBox.Show("Seats successfully reserved.");
            }
            else
            {
                MessageBox.Show("Please select at least 1 seat.");
            }
        }