private void UpdateParameters()
        {
            if (actualUser != null)
            {
                BDComun.MetaDataConsult(actualUser.ID, out firtsTransactionDate, out lastTransactionDate,
                                        out generalBalance, out generalDeposit, out generalEgress);
            }
            else
            {
                firtsTransactionDate = null;
                lastTransactionDate  = null;
                generalBalance       = 0m;
                generalDeposit       = 0m;
                generalEgress        = 0m;
            }

            ValidateDate();
        }