private void btnAddAppointment_Click_1(object sender, EventArgs e)
{
// Create an instance of a form
AppointmentMgr temp = new AppointmentMgr();
// Make it visible/active
temp.Show();
}
private void gvAppointments_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
string strAppointment_ID = gvAppointments.Rows[e.RowIndex].Cells[0].Value.ToString();
int intAppointment_ID = Convert.ToInt32(strAppointment_ID);
AppointmentMgr Editor = new AppointmentMgr(intAppointment_ID);
this.Close();
Editor.ShowDialog();
}