This is a migrated thread and some comments may be shown as answers.

Scheduler performance issues

8 Answers 138 Views

Scheduler

This is a migrated thread and some comments may be shown as answers.

Edward asked on 06 Jan 2016, 01:40 PM

I built an application for a client last year based on the webforms scheduler control, which they were very happy with, except for its speed, which was quite honestly dreadful. I looked at all the suggestions I could find on this forum and in your documentation regarding improving performance and implemented anything applicable. However, it still takes upwards of 2 & 1/2 minutes to load the scheduler page with 128 appointments over 4 days. They will only hire the application again this year if I can speed it up very significantly.

My implementation included binding to a custom provider and using the advanced form. It also required a single resource type for rooms, and 2 multiple resource types of meeting leaders and meeting participants. Eventually, there were 4 rooms, approximately 30 meeting leaders and 4,000 meeting participants. Because it looked to me as if the provider was loading all 4,000 meeting participants as a resource for each appointment, I adapted it to load only those attached to existing appointments (reducing the number to approximately 128), replacing the resource combobox for that in the advanced form with a search box, so that new participants could be added. Even that didn't significantly improve the speed.

I read that binding to Web API might improve things, but when I tried implementing that, it appeared that I couldn't call the overridden GetAppointments method from my custom provider. Would it be feasible to override the WebServiceAppointmentController class in a similar way to creating a custom provider?

I doubt anyway that using client-side binding via Web API is going to improve its performance significantly. I got the impression from using the provider methods elsewhere in my application, even when not directly attached to the scheduler control, that it was that slowing things down. Is it possible that re-writing in MVC and using the MVC scheduler might solve the problem, or does that draw on the same provider? At present, barring that, all I can think to do is search for a more efficient scheduler control from a third-party vendor other than Telerik or start something from scratch myself.

8 Answers, 1 is accepted

answered on 15 Feb 2016, 11:11 PM

Hi,

The custom provider takes the data from the database and regardless using the Client WebService binding that creates seriously a speed issue. The scheduler has got a couple of resources on it, however, it doesn't perform as suppose to be.
The only way to improve the issue is to load the currently visible dates item on it, and whenever the user changes the visible date/dates on the then the rebind method can operate the next available start-end date.
However, I have no idea how to capture the next visible start-end date and I don't think any other option to improve the issue.
Any kinda help is appreciated.

answered on 18 Feb 2016, 08:07 AM

Hi,

If you impelemnt the Web?Service binding as it is shown in the demo I linked RadScheduler will only ding the resources that are through the current visible aria - for example if you go to day view and check the count of the appointments of the scheduler by using get_appointments(),get_count() of the scheduler client object you will see that the number of the appointments is different from the number when the selected view is week view.

Hope this information will be helpful.

Regards,
Plamen
Telerik

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Feedback Portal and vote to affect the priority of the items