private void FormCreateOrder_Load(object sender, EventArgs e)
 {
     try
     {
         List <BuyerViewModel> listC = serviceC.GetList();
         if (listC != null)
         {
             comboBoxClient.DisplayMember = "BuyerFIO";
             comboBoxClient.ValueMember   = "Id";
             comboBoxClient.DataSource    = listC;
             comboBoxClient.SelectedItem  = null;
         }
         List <GBIpieceOfArtViewModel> listP = serviceP.GetList();
         if (listP != null)
         {
             comboBoxProduct.DisplayMember = "GBIpieceOfArtName";
             comboBoxProduct.ValueMember   = "Id";
             comboBoxProduct.DataSource    = listP;
             comboBoxProduct.SelectedItem  = null;
         }
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
 }
 private void LoadData()
 {
     try
     {
         List <GBIpieceOfArtViewModel> list = service.GetList();
         if (list != null)
         {
             dataGridView.DataSource              = list;
             dataGridView.Columns[0].Visible      = false;
             dataGridView.Columns[1].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
         }
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
 }