private void buttonDeleteFeeling_Click(object sender, EventArgs e)
 {
     if (dataGridViewFeeling.SelectedRows.Count == 1)
     {
         GetFeeling_Result selected = (GetFeeling_Result)dataGridViewFeeling.SelectedRows[0].DataBoundItem;
         DialogResult      result   = MessageBox.Show("Êtes-vous sûr de vouloir supprimer la ressenti pour le client '" + selected.DisplayName() + "'?", "Confirmation de suppression", MessageBoxButtons.YesNo, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button2);
         if (result == DialogResult.Yes)
         {
             try {
                 using (ProjetSGBDEntities context = new ProjetSGBDEntities()) {
                     context.DeleteFeeling(CurrentClient.Id, selected.ClientId, selected.ModifiedAt);
                 }
                 PopulateFeelings();
             } catch (Exception ex) {
                 ModelError modelError = new ModelError(ex);
                 if (modelError.Number == ModelError.DATA_NOT_UP_TO_DATE)
                 {
                     MessageBox.Show(modelError.Message, "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
                     PopulateFeelings();
                 }
                 else
                 {
                     MessageBox.Show(modelError.Message, "Erreur fatale!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 }
             }
         }
     }
 }