Prevent Task from becoming a Summary

[chris]

I'm looking for a way to prevent a task from becoming a summary (by adding tasks, or moving/dropping tasks, as children) if certain conditions exist on that task.  For instance, if a task has had time reported against it, it cannot become a summary.

Can I prevent all the CRUD operations on the Gantt based on checking for a condition on the task that would become a summary?  Can I return the data to check as part of the Gantt query? Or would this have to be outside the control?

Thanks for any help or hints

[chris]

I should clarify that I would like to do this from the client.  I know that I can stop the DB updates on the server by inspecting the data during the TaskInsert/TaskUpdate/TaskDelete functions, but I'd like to stop the postback altogether and show a message to the user.

[Ivan Danchev]

Hello Chris,

A task cannot be prevented from becoming summary on the client. This would have been possible if there were a cancellable client-side TaskAdd event that you can cancel based on a certain condition, but such event is currently not available.

Regards,
Ivan Danchev
Telerik