> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/kalipso5/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/kalipso5/developing/form/controls/events/lose-focus.md).

# Lose Focus

This Event is triggered when you leave a field, for example, when you remove the cursor from an Input Box.

#### Event available on the following operating systems

![](/files/-MGIiDGuNcrVFP-DbUma)