# DXEVAL System Variable [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [System Variables](Help%20System/GSTARCAD/2021/System%20Variables/(System%20Variables).md) → [D](Help%20System/GSTARCAD/2021/System%20Variables/D/(D).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 --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/D/DXEVAL%20System%20Variable--45fba1f3e6b3.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/D/DXEVAL%20System%20Variable--45fba1f3e6b3.md) · [GstarCAD 2018](../../../2018/System%20Variables/D/DXEVAL%20System%20Variable--45fba1f3e6b3.md) · [GstarCAD 2019](../../../2019/System%20Variables/D/DXEVAL%20System%20Variable--45fba1f3e6b3.md) · [GstarCAD 2020](../../../2020/System%20Variables/D/DXEVAL%20System%20Variable--45fba1f3e6b3.md)