# Binding a Radio Button to an Expression Tag **URL:** \ **Category:** Ignition\ **Created:** [May 16, 2016, 3:07pm UTC](https://forum.inductiveautomation.com/t/binding-a-radio-button-to-an-expression-tag/11672 "2016-05-16T15:07:57Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Keith.Britton](https://avatars.discourse-cdn.com/v4/letter/k/f05b48/32.png) [@Keith.Britton](https://forum.inductiveautomation.com/u/Keith.Britton)\ **Post date:** [May 16, 2016, 3:07pm UTC](https://forum.inductiveautomation.com/t/binding-a-radio-button-to-an-expression-tag/11672/1 "2016-05-16T15:07:57Z")
Noob here … can someone please show me how to code the expression for connecting to `{Root Container.Radio Button ABC.selected}`My long-term goal is to implement the GUI calendar features (like Mondays, Weekdays, ignore Holidays, etc.) into an active Calendar that does stuff and not just look pretty. I want to use a radio button so that I can differentiate it in different containers and have other features turn off automatically. Could do via scripting… Ten ways to flog the marmot, I suppose. I would need to connect it to specific Windows in my project, too, and that part escapes me. I’m not sure how`"Windows/Pump Operations"`would be bound to my radio button. Other than it not working, my only debugging clue is the tag reporting “Evaluation Error”. ---
**Author:** ![Keith.Britton](https://avatars.discourse-cdn.com/v4/letter/k/f05b48/32.png) [@Keith.Britton](https://forum.inductiveautomation.com/u/Keith.Britton)\ **Post date:** [May 17, 2016, 5:58pm UTC](https://forum.inductiveautomation.com/t/binding-a-radio-button-to-an-expression-tag/11672/2 "2016-05-17T17:58:26Z")
(sigh) I ended up making a Trump-load of memory tags that were bound to each radio button, then using an expression tag to sort the logic combinations required. Bulky and non-sexy but functional. Just like me.