# Binding to Custom Component Methods

**URL:** <https://forum.inductiveautomation.com/t/binding-to-custom-component-methods/19245>\
**Category:** Ignition\
**Tags:** scripting\
**Created:** [August 14, 2018, 4:58pm UTC](https://forum.inductiveautomation.com/t/binding-to-custom-component-methods/19245 "2018-08-14T16:58:24Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [August 16, 2018, 11:24am UTC](https://forum.inductiveautomation.com/t/binding-to-custom-component-methods/19245/11 "2018-08-16T11:24:01Z")

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When you use the tag() expression, it has to go get that value for any re-evaluation of that expression, including an actual tag value change. When you break it out to an indirect binding, that binding will only make a request when the path changes, and sits waiting just for tag changes otherwise. The expression will re-evaluate on the new tag property change, but other reevaluations will only grab the subscribed tag value. Much more efficient.

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