How can we update a sharepoint calendar without overlapping an existing event? Say, the calendar list already has an event with EventDate - 25/Aug/2013 4:00:00 and 26/Aug/2013 15:00:00 . Now, how can I insert a new event without overlapping an already existing event?
Note: I am able to insert items to Calendar using C# code. But, I just need to know whether there is a way to insert the events without overlapping.