How to prevent overlapping appointments in Scheduler?

Question

Answer:We can avoid the overlapped appointments by using IsSlotAvailable public method which helps to check whether the given time slots already exist in events. So, based on the Boolean value we can prevent the event using Cancel argument of OnActionBegin event.

"
OnActionBegin="OnActionBegin">

@code {

SfSchedule
ScheduleObj;

List
DataSource = new List

{

new
AppointmentData { Id = 1, Subject = "Meeting", StartTime = new
DateTime(2020, 1, 6, 9, 30, 0) , EndTime = new DateTime(2020, 1, 6, 11, 0, 0),

RecurrenceRule
= "FREQ=DAILY;INTERVAL=1;COUNT=5", RecurrenceException =
"20200107T043000Z,20200109T043000Z" }

};

public async Task
OnActionBegin(ActionEventArgs args)

{

bool
Availability = true;

if
(args.AddedRecords.Count() > 0)

{

Availability
= await ScheduleObj.IsSlotAvailable(args.AddedRecords[0]);

}

args.Cancel
= !Availability;     // To avoid appointments overlapping.

}

...

}

Rahul Jain · Answer

I have tried this solution also but that is not working completely,

When I update event in same day with different time that time that is working,

But this solution is not working for other events.

Please let me know , How to prevent all types of events.

I want only one appointment on a datetime .

Please let me know, I am waiting for Response.

Thank you -

Rahul Jain

Ravikumar Venkatesan · Answer

Hi Rahul,We have created a new forum for your query “I want only
one appointment on a DateTime” for easy follow-ups. So, we suggest you
follow the below forum for your new query.https://www.syncfusion.com/forums/178303/i-want-only-one-appointment-on-a-datetime-from-forum-162252?reply=SfYyvrRegards,Ravikumar Venkatesan