private void btnEdit_Click(object sender, EventArgs e)
        {
            Patient obj = patientBindingSource.Current as Patient;

            if (obj != null)
            {
                using (AddEditPatientForm frm = new AddEditPatientForm(obj))
                {
                    if (frm.ShowDialog() == DialogResult.OK)
                    {
                        try
                        {
                            patientBindingSource.EndEdit();
                            _context.SaveChanges();
                            MetroFramework.MetroMessageBox.Show(this, "Success", "Message", MessageBoxButtons.OK,
                                                                MessageBoxIcon.Question);
                        }
                        catch (Exception ex)
                        {
                            MessageBox.Show(ex.Message, "Message", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        }
                    }
                }
            }
        }
 private void btnAdd_Click(object sender, EventArgs e)
 {
     using (AddEditPatientForm frm = new AddEditPatientForm(new Patient()))
     {
         if (frm.ShowDialog() == DialogResult.OK)
         {
             try
             {
                 patientBindingSource.Add(frm.PatientInfo);
                 _context.Patients.Add(frm.PatientInfo);
                 _context.SaveChanges();
                 MetroFramework.MetroMessageBox.Show(this, "Success", "Message", MessageBoxButtons.OK,
                                                     MessageBoxIcon.Question);
             }
             catch (Exception ex)
             {
                 MessageBox.Show(ex.Message, "Message", MessageBoxButtons.OK, MessageBoxIcon.Error);
             }
         }
     }
 }