# [ref_impl_eiffel] [519] AWB-37: Fix various exceptions that occurred on the Errors grid when it was empty, when scrolling the mouse wheel or using various keys to navigate.

**Category:** [Reference Implementation: Eiffel (archive)](https://discourse.openehr.org/c/reference-implementation-eiffel-archive/161)
**Created:** 2008-02-18 11:37 UTC
**Views:** 1
**Replies:** 0
**URL:** https://discourse.openehr.org/t/ref-impl-eiffel-519-awb-37-fix-various-exceptions-that-occurred-on-the-errors-grid-when-it-was-empty-when-scrolling-the-mouse-wheel-or-using-various-keys-to-navigate/16038

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## Post #1 by @svn1

Revision: 519
Author:   peter\.gummer

Log Message:

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**Canonical:** https://discourse.openehr.org/t/ref-impl-eiffel-519-awb-37-fix-various-exceptions-that-occurred-on-the-errors-grid-when-it-was-empty-when-scrolling-the-mouse-wheel-or-using-various-keys-to-navigate/16038
**Original content:** https://discourse.openehr.org/t/ref-impl-eiffel-519-awb-37-fix-various-exceptions-that-occurred-on-the-errors-grid-when-it-was-empty-when-scrolling-the-mouse-wheel-or-using-various-keys-to-navigate/16038