Error with createAt bottom + scroll virtual

[Freddy]

Hi,

 

With the new version (2017.3.1018), all our grids fail without error when you try to add a new record when we have set this two options:

editable: { createAt: "bottom"},
scrollable: { virtual: true }

 

You could see it in this example:

dojo link

This works fine until now with all other versions, could you review it?

 

 

Thanks in advance

[Stefan]

Hello, Ainara,

Thank you for the provided example.

The issue occurs because the virtual scrolling requires the initial records to be more than the viewport in order to scroll. Also, the pageSize has to be set and to be around 3 times the visible items.

Please check all of the requirements and the specifics of the virtual scrolling:

https://docs.telerik.com/kendo-ui/controls/data-management/grid/appearance#virtual-scrolling

I also update the provided example:

https://dojo.telerik.com/UHeZI/2

Regards,
Stefan
Progress Telerik

[Freddy]

Ok,but works fine with previous version, as in this example:

dojo modified

And, when I create the grid, I don´t know how many records it has, I need it works fine with any number of items.

 

[Stefan]

Hello, Ainara,

In the previous version, the Grid editing with virtualization was not officially supported, it seems like it works but it will actually cause multiple issues in many scenarios, which is why it was considered as limitation before our R3 release.

Once we added the support, there is a code in the Kendo UI source which is checking the number of items.

https://docs.telerik.com/kendo-ui/controls/data-management/grid/appearance#limitations-for-virtual-scrolling

"Virtual scrolling is not compatible with grouping and hierarchy. Editing is supported as of R3 2017."

I do understand that the Grid may have a small number of records in the beginning and in that scenarios we recommend using standard paging or endless scrolling:

https://docs.telerik.com/kendo-ui/controls/data-management/grid/walkthrough#configuration-Paging

https://docs.telerik.com/kendo-ui/controls/data-management/grid/appearance#endless-scrolling

Regards,
Stefan
Progress Telerik