private async void OkButton_Click(object sender, RoutedEventArgs e)
        {
            if (!decimal.TryParse(PriceTextBox.Text, out var price))
            {
                MessageBox.Show("Incorrect price");

                return;
            }

            var entity = _id == 0 ? new Equipment() : await _equipmentService.GetAsync(_id);

            entity.Price   = price;
            entity.Info    = InfoTextBox.Text;
            entity.BrandId = (BrandComboBox.SelectedItem as Brand)?.Id ?? 0;
            entity.ToolId  = (ToolComboBox.SelectedItem as Tool)?.Id ?? 0;

            try
            {
                if (_id == 0)
                {
                    await _equipmentService.CreateAsync(entity);
                }
                else
                {
                    await _equipmentService.UpdateAsync(entity);
                }

                MainWindow.PublicEquipDataGrid.ItemsSource = await _equipmentService.GetAllAsync();

                Close();
            }
            catch (Exception exception)
            {
                MessageBox.Show("Server error");
            }
        }