Carlos,
ComboBox does have an errorString parameter. http://livedocs.adobe.com/flex/2/langref/mx/controls/ComboBox.html#propertyS ummary Make sure to click the link to show inherited properties if they are hidden, and you'll see it. HTH Jim _____ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Carlos Humberto Sent: Tuesday, April 24, 2007 8:54 PM To: Lista - Flexcoders Subject: [flexcoders] Helllp... Error message in a ComboBox ?! Hi All, Firstly excuse my terrible English !!! I'm Brazilian. How to define error message in a ComboBox, because it doesn't have the property errorString ? Ex: In textInput use: field.errorString = "error message"; In a ComboBox as it would be? Thank's a lot !