Frans,
Curious, have you played with Janus Schedule controls at all, we have found so far they don't appear to play nice with our LLBLGen objects and their documentation is horrid, whole sections of documentation resolved down to 1 line placeholder.
After we choose to go with LLBLGen, we did a control suite review, we eliminated Infragistics, and it was down to Janus and Developer Express. Neither one is a perfect answer, I am guessing all of them will get better with VS 2005 when Object databinding comes into its prime.
Our end decision ended up being Developer Express which works great other than needing to add a little bit of code for IList fields contained within IList fields, this is supposed to be addressed in the next update, but as is; I turned it into about 10 lines of reusable code to eliminate the issue.
Back to the original issue, was just wondering if you had any experience with the schedule control, I am being told that to avoid exceptions from being thrown we are having to disconnect the objects from the UI manipulate the objects then rehook the UI to avoid the exceptions, I can ask for more details from the developer on the exact exceptions but I know its related to adding new entities to the appointment collections.
John