akr Posted June 24, 2020 Posted June 24, 2020 (edited) JSInterface.JSCode(#1'.el.select("input[type=checkbox]").elements['+i.ToString+'].disabled='+FReadOnly.ToString.ToLower+';'); produces Unable to get property 'select' of undefined or null reference localhost:8077 (177,8) With 1531 Trial. Any ideas? Thx. Edited June 25, 2020 by akr TUniListBox solves the problem. No custom code needed. Quote
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