private void lbl_text_NumberToString()
        {
            NAS.BO.Accounting.CurrencyBO BO = new NAS.BO.Accounting.CurrencyBO();

            string c = "";

            if (gridlookupCurrency.Value != null)
            {
                c = gridlookupCurrency.Value.ToString();
            }

            string sotien = "0", tygia = "0";

            if (spinAmount.Number != null)
            {
                if (double.Parse(spinAmount.Number.ToString()) > 0)
                {
                    sotien = spinAmount.Number.ToString();
                }
            }

            if (spinExchangeRate.Number != null)
            {
                if (double.Parse(spinExchangeRate.Number.ToString()) > 0)
                {
                    tygia = spinExchangeRate.Number.ToString();
                }
                else if (number != null)
                {
                    tygia = number;
                }
            }



            if (c != null && !c.Equals(""))
            {
                lbl_text_Number.Text = BO.NumberToString(session, double.Parse(sotien), c.ToString(), double.Parse(tygia)).ToString();
            }
        }