public Docappointment(int ID)
        {
            InitializeComponent();
            this.ID = ID;
            DatabaseOps doctor = new DatabaseOps();

            dataGridViewINP.DataSource = doctor.GetAppointmentofDoctor(this.ID);
        }
        private void comboBoxSearchBy_SelectedIndexChanged_1(object sender, EventArgs e)
        {
            if (comboBoxSearchBy.SelectedItem.ToString() == "Current Appointments")
            {
                DatabaseOps doctor = new DatabaseOps();
                dataGridViewINP.DataSource = doctor.GetAppointmentofDoctor(this.ID, "Current Appointment");
            }

            else
            {
                DatabaseOps doctor = new DatabaseOps();
                dataGridViewINP.DataSource = doctor.GetAppointmentofDoctor(this.ID);
            }
        }
        private void comboBoxSearchBy_SelectedIndexChanged(object sender, EventArgs e)
        {
            DatabaseOps doctor = new DatabaseOps();

            dataGridViewINP.DataSource = doctor.GetAppointmentofDoctor(this.ID);
        }