You could pre-process the different objects into a collection of display objects.
Tracy ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of kallebertell Sent: Friday, March 28, 2008 8:03 AM To: [email protected] Subject: [flexcoders] Datagrid with different objects in each cell I have a case of a datagrid where I have to fetch a value from different objects depending on the column. ---X----A---B---C---D- 1--X1---A1--B1--C1--D1 2--X2---A2--B2--C2--D2 3--X3---A3--B3--C3--D3 4--X4---A4--B4--C4--D4 The datagrid's dataprovider is an ArrayCollection of objects of type X. What I'm trying to do is showing relations between objects of type X to types A, B, C and D. These relations are objects themselves and have their own properties. It is this relational property I want to display. I've solved this by having special column which gets the object (A,B,C,D) they're being relating to passed into them. I then use a special renderer which overrides grabs the object it's being related to (A,B,C or D) from its parent column; and uses this info to pick out the correct (overriding set data) relation object from the X object. This all works fine, until I try to sort one of the special columns; and I do need to be able to sort them. I almost got it working by doing a custom sortCompareFunction in the column, but then it fails on an exception, "Error: Find criteria must contain at least one sort field value.", although it seemed to get the sorting done. Diving into the source it looks like it is a strong assumption (at least in sorting) that each row in the datagrid is representing a property from the same object, which of course it isn't for me. I thought I'd put a message here before continuing hacking away at this. Anyone done something similar to this and is it possible to do this elegantly?
