# \[BUG-15945\] Expression structure cannot handle a dataset **URL:** \ **Category:** Ignition\ **Created:** [February 1, 2020, 8:50pm UTC](https://forum.inductiveautomation.com/t/bug-15945-expression-structure-cannot-handle-a-dataset/31842 "2020-02-01T20:50:34Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![weertske](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/weertske/32/3353_2.png) [@weertske](https://forum.inductiveautomation.com/u/weertske)\ **Post date:** [February 1, 2020, 8:50pm UTC](https://forum.inductiveautomation.com/t/bug-15945-expression-structure-cannot-handle-a-dataset/31842/1 "2020-02-01T20:50:34Z")
As far as I can tell, this is a bug. The expression structure binding cannot handle a dataset. ---
**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\ **Post date:** [February 3, 2020, 9:02am UTC](https://forum.inductiveautomation.com/t/bug-15945-expression-structure-cannot-handle-a-dataset/31842/2 "2020-02-03T09:02:30Z")
If it’s a bug, IA will need to know the version you’re using ---
**Author:** ![weertske](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/weertske/32/3353_2.png) [@weertske](https://forum.inductiveautomation.com/u/weertske)\ **Post date:** [February 3, 2020, 4:10pm UTC](https://forum.inductiveautomation.com/t/bug-15945-expression-structure-cannot-handle-a-dataset/31842/3 "2020-02-03T16:10:52Z")
Version: 8.0.8 RC1 ---
**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Post date:** [February 3, 2020, 5:20pm UTC](https://forum.inductiveautomation.com/t/bug-15945-expression-structure-cannot-handle-a-dataset/31842/4 "2020-02-03T17:20:33Z")
Don’t forget to supply how you’re trying to use it. 🙂 ---
**Author:** ![weertske](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/weertske/32/3353_2.png) [@weertske](https://forum.inductiveautomation.com/u/weertske)\ **Post date:** [February 3, 2020, 6:01pm UTC](https://forum.inductiveautomation.com/t/bug-15945-expression-structure-cannot-handle-a-dataset/31842/5 "2020-02-03T18:01:06Z")
You guys, I am being so careless and you are holding me accountable.🕶 I tested it two ways, by binding it to a dataset tag and a property dataset. In both cases, it didn’t pass the dataset to the new property. ---
**Author:** ![osolorzano](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/osolorzano/32/6432_2.png) [@osolorzano](https://forum.inductiveautomation.com/u/osolorzano)\ **Post date:** [February 3, 2020, 7:13pm UTC](https://forum.inductiveautomation.com/t/bug-15945-expression-structure-cannot-handle-a-dataset/31842/6 "2020-02-03T19:13:26Z")
You are right, it doesn’t work even in the simplest example and throws a lot of errors into the gateway log as it tries to resolve the binding. I’ll get an internal ticket written up for this. ---
**Author:** ![weertske](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/weertske/32/3353_2.png) [@weertske](https://forum.inductiveautomation.com/u/weertske)\ **Post date:** [May 12, 2020, 6:46pm UTC](https://forum.inductiveautomation.com/t/bug-15945-expression-structure-cannot-handle-a-dataset/31842/7 "2020-05-12T18:46:15Z")
Did this ever get fixed? ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [May 12, 2020, 6:48pm UTC](https://forum.inductiveautomation.com/t/bug-15945-expression-structure-cannot-handle-a-dataset/31842/8 "2020-05-12T18:48:47Z")
Nope, hasn’t been picked up yet. We’ll update the thread once it has. ---
**Author:** ![Carl.Gould](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/carl.gould/32/7262_2.png) [@Carl.Gould](https://forum.inductiveautomation.com/u/Carl.Gould)\ **Post date:** [October 13, 2020, 11:21pm UTC](https://forum.inductiveautomation.com/t/bug-15945-expression-structure-cannot-handle-a-dataset/31842/9 "2020-10-13T23:21:24Z")
Good news - it’s fixed for 8.1.1 ---
**Author:** ![weertske](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/weertske/32/3353_2.png) [@weertske](https://forum.inductiveautomation.com/u/weertske)\ **Post date:** [October 14, 2020, 3:07pm UTC](https://forum.inductiveautomation.com/t/bug-15945-expression-structure-cannot-handle-a-dataset/31842/10 "2020-10-14T15:07:14Z")
Thank you.