I believe that IsDefined is only meant to check for the existance of top level variables, for complex data types you have to use the specific functions for each type. So here CF is trying to find out if there is a variable named "aStruct[aField]" and brackets are illegal in cf variable names.
In this case I think you'll have to do a 3 step process: <cfif IsDefined("aStruct") And IsStruct(aStruct) And StuctKeyExists(aStruct, "aField")> .. </cfif> </rob> -----Original Message----- From: cf refactoring [mailto:[EMAIL PROTECTED]] Sent: Thursday, April 18, 2002 11:50 AM To: CF-Talk Subject: IsDefined and brackets The following code throws a syntax error: <cfset aStruct=StructNew()> <cfset aStruct.aField="something"> <cfif IsDefined("aStruct[aField]")> aStruct[aField] is defined </cfif> Is this just some CF quirk that IsDefined doesn't like brackets or is there some good reason for this? ===== I-Lin Kuo Macromedia CF5 Advanced Developer Sun Certified Java 2 Programmer __________________________________________________ Do You Yahoo!? Yahoo! Tax Center - online filing with TurboTax http://taxes.yahoo.com/ ______________________________________________________________________ This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting. FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists