# Error!

**URL:** <https://forum.kirupa.com/t/error/56137>\
**Category:** flash\
**Created:** [June 30, 2004, 10:50pm UTC](https://forum.kirupa.com/t/error/56137 "2004-06-30T22:50:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jerez\_z](https://avatars.discourse-cdn.com/v4/letter/j/bc79bd/32.png) [@jerez\_z](https://forum.kirupa.com/u/jerez_z)\
**Post date:** [June 30, 2004, 10:50pm UTC](https://forum.kirupa.com/t/error/56137/1 "2004-06-30T22:50:24Z")

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I am having a real problem with one of my components. I have a list object and I need to set the selectedIndex. Now I would think this would be easy, but it appears that for just this instance the selectedIndex property is read only. I have set the property for other instances, and I can read the property for this instance, but I cannot change it. Anyone have any idea why?