# Accessing elements of a string array memory tag in an expression

**URL:** <https://forum.inductiveautomation.com/t/accessing-elements-of-a-string-array-memory-tag-in-an-expression/70548>\
**Category:** Ignition\
**Created:** [March 2, 2023, 6:23pm UTC](https://forum.inductiveautomation.com/t/accessing-elements-of-a-string-array-memory-tag-in-an-expression/70548 "2023-03-02T18:23:13Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Steven\_Davis](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/steven_davis/32/63158_2.png) [@Steven\_Davis](https://forum.inductiveautomation.com/u/Steven_Davis)\
**Post date:** [March 2, 2023, 6:23pm UTC](https://forum.inductiveautomation.com/t/accessing-elements-of-a-string-array-memory-tag-in-an-expression/70548/1 "2023-03-02T18:23:13Z")

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Hey everyone. If I have a memory tag that is a string array type, lets call it - {[opcServer]opcPath/tagName}  
how would I access elements in that array using an expression.

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**Author:** ![ryan.white](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ryan.white/32/73193_2.png) [@ryan.white](https://forum.inductiveautomation.com/u/ryan.white)\
**Post date:** [March 2, 2023, 7:34pm UTC](https://forum.inductiveautomation.com/t/accessing-elements-of-a-string-array-memory-tag-in-an-expression/70548/2 "2023-03-02T19:34:21Z")

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have you tried `{[opcServer]opcPath/tagName[elementIndex]}` or `{[opcServer]opcPath/tagName}[elementIndex]` ?

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**Author:** ![Steven\_Davis](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/steven_davis/32/63158_2.png) [@Steven\_Davis](https://forum.inductiveautomation.com/u/Steven_Davis)\
**Post date:** [March 2, 2023, 8:35pm UTC](https://forum.inductiveautomation.com/t/accessing-elements-of-a-string-array-memory-tag-in-an-expression/70548/3 "2023-03-02T20:35:28Z")

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I've tried {[opcServer]opcPath/tagName}[0,0] for a dataset and it didnt work. ill try it for the list and see what i get.

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<div class="post-metadata">

**Author:** ![Steven\_Davis](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/steven_davis/32/63158_2.png) [@Steven\_Davis](https://forum.inductiveautomation.com/u/Steven_Davis)\
**Post date:** [March 2, 2023, 9:01pm UTC](https://forum.inductiveautomation.com/t/accessing-elements-of-a-string-array-memory-tag-in-an-expression/70548/4 "2023-03-02T21:01:36Z")

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For a string it was:  
{[default]Sandbox/stringArray[0]}

and for a dataset it was:  
{[default]Sandbox/booleanDataset[0,1]}