On Selecting
Last updated 26/03/2026
Overview
The On Selecting event is a client-side event that executes when a tab is being selected, but before it actually displays its contents. This occurs only when the page navigation is set to Top. It allows the application to react before the tab content becomes visible.
How it Works
When a tab is clicked or navigated to:
- The tab is in the process of being selected.
- The On Selecting client-side event executes.
- The tab content is not yet displayed.
Use Cases
- Prepare or load data before the tab is displayed
- Set default values