# Perspective: Limit text input field to regex pattern?

**URL:** <https://forum.inductiveautomation.com/t/perspective-limit-text-input-field-to-regex-pattern/38936>\
**Category:** Ignition\
**Tags:** ignition80, perspective\
**Created:** [September 22, 2020, 1:47pm UTC](https://forum.inductiveautomation.com/t/perspective-limit-text-input-field-to-regex-pattern/38936 "2020-09-22T13:47:21Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![zacht](https://avatars.discourse-cdn.com/v4/letter/z/ea5d25/32.png) [@zacht](https://forum.inductiveautomation.com/u/zacht)\
**Post date:** [September 22, 2020, 2:24pm UTC](https://forum.inductiveautomation.com/t/perspective-limit-text-input-field-to-regex-pattern/38936/2 "2020-09-22T14:24:02Z")

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I don’t know of anything built-in, but you could turn off defer updates and use a property change script similar to here ([Limit Characters in a Textbox when Typing](http://forum.inductiveautomation.com/t/limit-characters-in-a-textbox-when-typing/29372/2)).

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