# DXEVAL System Variable [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [System Variables](Help%20System/GSTARCAD/2027/System%20Variables/(System%20Variables).md) **Function Description:** The DXEVAL system variable is used to control when data extraction tables are compared against the data source. It may display update notification when the data is not current. | | | | --- | --- | | Type | Integer | | Saved in | Drawing | | Initial value | 12 | | Range | 0 ~ 511 | **System Variable Value:** **0:** no notification **1:** open **2:** save **4:** print **8:** publish **16:** eTransmit/ Archive **32:** automatically update when saving **64:** automatically update when printing **128:** automatically update when printing **256:** automatically update when eTransmiting/ Archiving --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/systemVariables/DXEVAL.html) · © Gstarsoft Co., Ltd.