# Block group / expression item

**URL:** <https://forum.inductiveautomation.com/t/block-group-expression-item/6170>\
**Category:** Ignition\
**Created:** [April 5, 2013, 8:08pm UTC](https://forum.inductiveautomation.com/t/block-group-expression-item/6170 "2013-04-05T20:08:40Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Pat](https://avatars.discourse-cdn.com/v4/letter/p/8491ac/32.png) [@Pat](https://forum.inductiveautomation.com/u/Pat)\
**Post date:** [April 5, 2013, 8:08pm UTC](https://forum.inductiveautomation.com/t/block-group-expression-item/6170/1 "2013-04-05T20:08:40Z")

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Is it possible to use an expression item’s value as a value in a block group item?

It seems the only possible values for a block item is OPC, SQLTag, or Static. 😐

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**Author:** ![Travis.Cox](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@Travis.Cox](https://forum.inductiveautomation.com/u/Travis.Cox)\
**Post date:** [April 5, 2013, 8:43pm UTC](https://forum.inductiveautomation.com/t/block-group-expression-item/6170/2 "2013-04-05T20:43:20Z")

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No, you can’t use an expression for the block item. There are expression items but the value will the same for each block item. You can create several expression SQLTags that you use in a block though.

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**Author:** ![Colby.Clegg](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/colby.clegg/32/3282_2.png) [@Colby.Clegg](https://forum.inductiveautomation.com/u/Colby.Clegg)\
**Post date:** [April 17, 2013, 11:26pm UTC](https://forum.inductiveautomation.com/t/block-group-expression-item/6170/3 "2013-04-17T23:26:01Z")

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As a side note, it’s been a feature request for some time to let expression items evaluate for each row, and allow them to reference the block items, which I think might let you accomplish what you want. I’m not sure, though, when this will make it in.

Regards,

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**Author:** ![richardNZ15](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/richardnz15/32/33373_2.png) [@richardNZ15](https://forum.inductiveautomation.com/u/richardNZ15)\
**Post date:** [September 13, 2017, 9:25pm UTC](https://forum.inductiveautomation.com/t/block-group-expression-item/6170/4 "2017-09-13T21:25:42Z")

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Has this been implemented yet? The ability to run expression on each row of a block item? Looking at it now, it looks like you cant. Clicking the tag icon only displays Basic OPC /Group Items