BKI_DichVuMatDat.DanhMuc.F109_dm_thue_de.check_validate_data C# (CSharp) Method

        private bool check_validate_data()
        {
            if (m_txt_ti_le.Text.Trim() == "")
            {
                CHRM_BaseMessages.MsgBox_Error(CONST_ID_MSGBOX.ERROR_CHUA_NHAP_TI_LE);
                return false;
            }
            if (m_txt_bu_tru.Text.Trim() == "")
            {
                CHRM_BaseMessages.MsgBox_Error(CONST_ID_MSGBOX.ERROR_CHUA_NHAP_GIA_TRI_BU_TRU);
                return false;
            }
            if (m_txt_chan_duoi.Text != "" && m_txt_chan_tren.Text != "")
            {
                if (CIPConvert.ToDecimal(m_txt_chan_tren.Text.Trim()) <= CIPConvert.ToDecimal(m_txt_chan_duoi.Text.Trim()))
                {
                    CHRM_BaseMessages.MsgBox_Error(CONST_ID_MSGBOX.ERROR_CHUA_NHAP_GIA_TRI_CHAN_DUOI_NHO_HON_CHAN_TREN);

                    return false;
                }
            }
            return true;
        }