# \#datamodel

**URL:** https://forum.universal-robots.com/tag/datamodel/47.md

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## [DataModel does not properly restore String array](https://forum.universal-robots.com/t/datamodel-does-not-properly-restore-string-array/5446)

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**Author:** [@anon75497214](https://forum.universal-robots.com/u/anon75497214)\
**Replies:** 4\
**Last updated:** [September 26, 2024, 7:25pm UTC](https://forum.universal-robots.com/t/datamodel-does-not-properly-restore-string-array/5446 "2024-09-26T19:25:22Z")

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I noticed that the datamodel does not properly restore a string array. If an entry of an array contains a comma, that entry is split up. This caused a lot of problems for us. We now try to avoid commas but it is not an…

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## [How to do DataModel versioning](https://forum.universal-robots.com/t/how-to-do-datamodel-versioning/4943)

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**Author:** [@anon75014230](https://forum.universal-robots.com/u/anon75014230)\
**Replies:** 10\
**Last updated:** [August 23, 2019, 7:16pm UTC](https://forum.universal-robots.com/t/how-to-do-datamodel-versioning/4943 "2019-08-23T19:16:04Z")

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Hello, We are experiencing an unexpected situation with the DataModel instance of our InstallationNodeContribution object, in the context of a version upgrade, i.e. our InstallationNodeContribution adding additional fe…

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## [Save Program greyed out - UndoRedo](https://forum.universal-robots.com/t/save-program-greyed-out-undoredo/2911)

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**Author:** [@anon57702353](https://forum.universal-robots.com/u/anon57702353)\
**Replies:** 3\
**Last updated:** [January 31, 2019, 2:53pm UTC](https://forum.universal-robots.com/t/save-program-greyed-out-undoredo/2911 "2019-01-31T14:53:46Z")

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Hi, I have a program node composed of two buttons and a textfield. Whenever I press the buttons their callback is invoked storing some parameters inside the DataModel. undoRedoManager.recordChanges(new UndoableChanges(…

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## [Error while starting PolyScope at "com.ur.urcap.conveyortracking \[79\]"](https://forum.universal-robots.com/t/error-while-starting-polyscope-at-com-ur-urcap-conveyortracking-79/1616)

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**Author:** [@anon29260635](https://forum.universal-robots.com/u/anon29260635)\
**Replies:** 1\
**Last updated:** [February 13, 2018, 9:19am UTC](https://forum.universal-robots.com/t/error-while-starting-polyscope-at-com-ur-urcap-conveyortracking-79/1616 "2018-02-13T09:19:09Z")

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Hello guys, i don’t know whats wrong but after current restart PolyScope seems to have a bad problem while loading its content… The funny thing is that the error occours while starting a bundle i didn’t edit at all, so…