Data source change getting called twice using server side sorting

[Abhishek]

Hi,

 We use server side paging/sorting for grid and do not use datasource transport methods but make server calls to bind data ourselves. Now when user clicks sort, data source change event is fired, there we check if sort options have changed. If yes, we get the sorted data and when data is returned from server, we bind the data to the grid. This again calls datasource change event. 
 Can you please tell us if this is expected, or we are missing anything here.

Thanks a lot.

[Alexander Valchev]

Hi Abhishek,

The behaviour is expected. The change event of the DataSource is triggered every time any change in the data occurs. The first it is triggered by the user when he/she sorts with the mouse. The second time it is triggered because the data is changed by the developer.

Regards,
Alexander Valchev
Telerik