To use dataField, the properties must be top level properties of the item object.
To access nested objects, you must use a labelFunction. labelFunction automatically receives two arguments, a reference to the item object that is creating the current row, and a reference to the dataGridColumn object, so tht you can use a single labelFunction for multiple columns. Here is an example: http://www.cflex.net/showFileDetails.cfm?ObjectID=258&Object=File&Channe lID=1 Tracy ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Niko Schmuck Sent: Thursday, December 07, 2006 7:00 AM To: [email protected] Subject: [flexcoders] Dot notation to access objects inside a datagrid column Hi FlexCoders: Coming from a Java background, I was surprised that the dot operator is not working as I expected. The array with the data structure and children is populated from the (Hibernate) data source at creationComplete time with: ds.fill(users, "all.users", []); The array collection is declared via: <mx:ArrayCollection id="users" /> and then used inside the datagrid ... <mx:DataGrid id="dgrid" dataProvider="{users}" editable="false"> <mx:columns> <mx:DataGridColumn headerText="User ID" dataField="id"/> <mx:DataGridColumn headerText="First Name" dataField="firstName"/> <mx:DataGridColumn headerText="Last Name" dataField="lastName"/> <mx:DataGridColumn headerText="Group" dataField="userGroup.name"/> </mx:columns> </mx:DataGrid> Unfortunately the dot-access to the related user group name seems not to work, there is just nothing being displayed. If dataField="userGroup" then there is [object UserGroup] displayed inside the datagrid column. So how do you retrieve the properties of the related user group object? Thanks for your help, Niko PS: The classes for value objects look very straight-forward: // User.as package com.example.flex { [Managed] [RemoteClass(alias="com.example.flex.User")] public class User { public var id:Number; public var firstName:String = ""; public var lastName:String = ""; public var userGroup:UserGroup; public function User() { } } } // UserGroup.as package com.example.flex { [Managed] [RemoteClass(alias="com.example.flex.UserGroup")] public class UserGroup { public var id:Number; public var name:String = ""; public function UserGroup() { } } }
