Local Data Virtualization with Item Insert/Remove

[Matt]

Hello Kendo Masters,

We have a need to use local data virtualization with manipulation to the data source - namely record inserts and removals.

Is there a good sequence of function calls to make these operations appear as seamless as possible?  (i.e. - add/remove occurs, grid refreshes, maintains scroll position, and virtual scroll bar has re-calculated).

Any input/advice is appreciated, and we don't mind writing code as long as the goal is achieved.

Regards!

[Alexander Popov]

Hello Matt,

I am afraid that this scenario is not fully supported. Basically, virtual scrolling uses ranges instead of pages to determine which items to be displayed, and adding a new item results in miscalculated ranges, which in turn breaks the scrolling. Maintaining the scroll position after refreshing is also a difficult task. You could get the current page and store it somewhere, then once the Grid reloads - go to that page, however that will not re-calculate the scrollbar position.

Regards,
Alexander Popov
Telerik