private void frmShowMovie_Load(object sender, EventArgs e)
        {
            database = new Database(this);
            movieController = new frmMovieController(this, gridMovie);
            designController = new frmDesignController();

            //Displays information in the movie grid.
            movieController.displayGrid();

            //Hide column movie id.
            gridMovie.Columns[0].Visible = false;

            //Does not allow changes to be made.
            gridMovie.ReadOnly = true;

            //Formats the design of the grid.
            designController.changeFont(gridMovie);
        }
        //Form load event
        private void frmMain_Load(object sender, EventArgs e)
        {
            //Start instantiation
            movieController = new frmMovieController(this, gridMovie);
            designController = new frmDesignController();
            employeeController = new frmEmployeeController(this, gridEmployee);
            customerController = new frmCustomerController(this, gridCustomer);
            validationController = new frmValidationController();
            datePickerController = new frmDatePickerController(gridCustomer);
            frmLogin = new frmLogin();
            overviewController = new frmOverviewController(this, cmbShowTimes);
            //End instantiation

            //Displays information in the grids.
            movieController.displayGrid();
            employeeController.displayGrid();
            customerController.displayGrid();

            //Does not allow changes to be made to certain columns.
            gridMovie.Columns[0].ReadOnly = true; //Movie ID
            gridEmployee.Columns[0].ReadOnly = true; //Employee ID
            gridEmployee.Columns[4].ReadOnly = true; //Employee password
            gridCustomer.Columns[0].ReadOnly = true; //Customer ID
            gridCustomer.Columns[4].ReadOnly = true; //Customer password

            //Format the design of grids.
            designController.changeFont(gridMovie); //Movie grid
            designController.changeFont(gridEmployee); //Employee grid
            designController.changeFont(gridCustomer);  //Customer grid

            //Add items to combo box
            movieController.addItemsToCmb(cmbMovieRating); //Add A, B and C to combo box in movie page.
            overviewController.addItemsToCmb(cmbShowTimes); //Add show times to the combo box in overview page.

            //Add date picker to the grid.
            datePickerController.addDatePicker();

            //Puts focus on first page of tab control.
            tabControl.SelectedTab = tabControl.TabPages["tabPageOverview"];

        }