Scheduler's DataSource read method called over and over again

[Boris]

Hello,

I have a DataSource connected to the Scheduler. The DataSource read data from the remote web service. I proces data returned from the service with the function assigned to DataSource.schema.data.

In some occassions, reading data from webresource is called over and over again. I would say that it happens when there are no data returned from the web service. That means that there are no events and my function (assigned to DataSource.schema.data) returns an empty array.

Is it possible that when I return an empty array, the DataSource's read is called again? Or am I wrong and I should seek for the error somewhere else?

 

Thanks for answers,

Boris

[Georgi Krustev]

Hello Boris,

By default, the widget requests all available events and will not perform any additional requests any further.

If the scheduler is configured to perform server filtering, then it will call service on every view change/navigate. This demo shows how this can be implemented:

• http://docs.telerik.com/kendo-ui/aspnet-mvc/helpers/scheduler/how-to/server-filtering

Basically, the widget will request when the user tries to navigate to next/pref/different view. If the service returns empty array, then the widget will not show anything. It will not continue to request the service until the view is changed again:

• http://dojo.telerik.com/Ocuja

Please note that the best place to project (filter) your data is on the server or in the transport.read callback.

Let me know if I am missing something.

Regards,
Georgi Krustev
Telerik