private void ComboBox_ObjOfTransact_LostFocus(object sender, RoutedEventArgs e)
{
if (ComboBox_ObjOfTransact.Text != "0")
{
int id = 0;
ObjectOfTransaction obj;
int.TryParse(ComboBox_ObjOfTransact.Text, out id);
using (var service = new DataServiceClient())
{
obj = service.GetObjectOfTransactionById(id);
TextBox_TransactionAmount.Text = obj.Cost.ToString();
ComboBox_KindOfCalc.Text = ((EnumKindOfCalculating)obj.KindOfCalculatingID).ToString();
}
}
}