TabPanel SelectedIndex value in inspector not honoured at runtime

Status: Fixed
Fixed in: v26.5.5
Source discussion: https://forum.objo.dev/d/57-tabpanel-doesnt-selectedtablndex-inspector-value-when-app-run
Last updated: 2026-05-21

Public summary

The value of SelectedIndex for a TabPanel set in the inspector in the visual designer is not honoured at runtime.

Steps to reproduce:

Add a TabPanel to a window
Set its SelectedIndex to 1 in the inspector. This visually updates the control in the designer so tab index 1 is selected (correct)
Run the app, the SelectedIndex is 0.