# CONSTRAINTNAMEFORMAT System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [C](Help%20System/GSTARCAD/2026/System%20Variables/C/(C).md) ## Function Description: The CONSTRAINTNAMEFORMAT system variable is used to control the text styles of dimension constrains. | | | | --- | --- | | Type | Integer | | Saved in | Registry | | Initial value | 2 | | Range | 0,1,2 | ## System Variable Value: **0:** name **1:** value **1:** expressions --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables_Cgsv/CONSTRAINTNAMEFORMAT.html) · © Gstarsoft Co., Ltd.