Talk:AJAX - Return Arrays and Structs to your JavaScript with XML
From DataFlex Wiki
From Akennard:
I just wanted to ask 'why' this works ....
Get paXml of hoXml to aXml Send Destroy of hoRoot Send Destroy of hoXML Function_Return aXML
End_Function
Is it because VDF does not ACTUALLY destroy and objects untill it gets to end_function ? because returning a handle to something you have just destroyed doesn't look quite right ? ie you are returning a handle to nothing or something that might still exist at that point ? VDF has a special XmlHandle return type for returning a hoXML object and the tidying up after itself Is there a reason why this has not been used in this case ? eg would this work for AJAX ?
{ Published = True } { Description = "" }
Function NameCasing String sName Returns XMLHandle
Handle hoRoot hoXML hoEvent Address aXml // create xml document
Get Create U_cXMLDOMDocument to hoXML Set pbValidateOnParse of hoXML to False Get CreateDocumentElement of hoXML "response" to hoRoot Send AddElement of hoRoot "lowercase" (lowercase(sName)) Send AddElement of hoRoot "uppercase" (Uppercase(sName)) Send AddElement of hoRoot "propercase" (Uppercase(Left(sName,1))+lowercase(Right(sName,(length(sName)-1)))) Function_Return hoXML // runtime will transfer and then destroy this object because of XMLHandle return type
End_Function // NameChanges