# Numeric Entry Help

**URL:** <https://forum.inductiveautomation.com/t/numeric-entry-help/103474>\
**Category:** Ignition\
**Tags:** perspective\
**Created:** [March 10, 2025, 6:57pm UTC](https://forum.inductiveautomation.com/t/numeric-entry-help/103474 "2025-03-10T18:57:54Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![controls4689](https://avatars.discourse-cdn.com/v4/letter/c/e79b87/32.png) [@controls4689](https://forum.inductiveautomation.com/u/controls4689)\
**Post date:** [March 10, 2025, 6:57pm UTC](https://forum.inductiveautomation.com/t/numeric-entry-help/103474/1 "2025-03-10T18:57:54Z")

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Hello, I made a numeric entry in perspective that is editing a tanks fill level, when I edit the value of the tag from the tag browser it changes the numeric entry and when I change the numeric entry value it changes the tag and fill level, however when i launch the session and edit the numeric entry in the session it does not edit the tag. The only binding I have on the numeric entry is a direct tag binding to the value, any help is greatly appreciated thank you!

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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 10, 2025, 6:59pm UTC](https://forum.inductiveautomation.com/t/numeric-entry-help/103474/2 "2025-03-10T18:59:42Z")

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Is the tag binding on your numeric entry bidirectional?

> **[Tag Bindings in Perspective | Ignition User Manual](https://www.docs.inductiveautomation.com/docs/8.1/ignition-modules/perspective/working-with-perspective-components/bindings-in-perspective/tag-bindings-in-perspective#options)**
>
> A Tag binding is a straight-forward binding type. It simply binds a property directly to a Tag Property (typically the value). This sets up a subscription for that Tag. Every time the chosen Tag changes, the binding is evaluated and pushes the new...

> **[Tag Binding Video at Inductive University](https://inductiveuniversity.com/videos/perspective-tag-binding/8.1)**
>
> Tag bindings are the simplest method of configuring a link between a Perspective Component and a Tag value. This lesson demonstrates how to create a Tag binding in Perspective.

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<div class="post-metadata">

**Author:** ![controls4689](https://avatars.discourse-cdn.com/v4/letter/c/e79b87/32.png) [@controls4689](https://forum.inductiveautomation.com/u/controls4689)\
**Post date:** [March 10, 2025, 7:03pm UTC](https://forum.inductiveautomation.com/t/numeric-entry-help/103474/3 "2025-03-10T19:03:59Z")

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no it is not

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<div class="post-metadata">

**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 10, 2025, 7:06pm UTC](https://forum.inductiveautomation.com/t/numeric-entry-help/103474/4 "2025-03-10T19:06:06Z")

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If you need an entry field to write back to the tag, it's tag binding needs to be bidirectional.

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<div class="post-metadata">

**Author:** ![controls4689](https://avatars.discourse-cdn.com/v4/letter/c/e79b87/32.png) [@controls4689](https://forum.inductiveautomation.com/u/controls4689)\
**Post date:** [March 10, 2025, 7:06pm UTC](https://forum.inductiveautomation.com/t/numeric-entry-help/103474/5 "2025-03-10T19:06:54Z")

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yes i just changed it, it works now, thank you.