Creating task-appointment at the same date

[huseyin celik]

hi
i am Creating task(appointment) then  another user can create task at the same time?is this a bug?
how can i ignore other user to create appointment on the others appointments created time?
thanks

[huseyin celik]

any one here or is question not clear? 

[Plamen]

Hello,

 
You can refer to the Occupied Timeslots on-line demo and its Related resources where is shown how similar functionality is implemented.

All the best,
Plamen
the Telerik team