Well, as you can see on the lack of postings, i have been (and still am) very bussy. One need thing i achieved is to build UI-Mapping and Cascading creation and deletion of objects in my ORM. All from the classdiagram and nothing else! how cute is that.. I will post more on this later..

http://www.devilducky.com/media/53567/

Working on a large portal project me and my team faced a lot of problems to get the communication between webparts and binding grids right. To make an end to this, I wrote a universal to use "pattern" to avoid unexpected mess.

If microsoft could only make the connectors available (= onprerender#@$) before CreateChildControls, live would be much easier!

In our scenario, we use one 'Action provider' (save/delete and stuff) and one 'ClassID provider' (to communicate ID's between parts)

http://www.overnight.nl/download/WebPartStages.doc

hope this helps, if not contact me, it will drive u crazy!

Another thing to be aware of, you can only set a validationgroup on CreateChildControls, afterwards, again no error, but it wont render#@ How cute when this depends on the provider#$@ thanks microsoft, not!