Kendo Grid: Virtual Scrolling and Grouping

6 posts, 0 answers
  1. Brice
    Brice avatar
    1 posts
    Member since:
    Sep 2015

    Posted 01 Aug 2017 Link to this post

    Stackoverflow: https://stackoverflow.com/questions/45439666/kendo-grid-virtual-scrolling-and-grouping
  2. Dimiter Topalov
    Admin
    Dimiter Topalov avatar
    899 posts

    Posted 03 Aug 2017 Link to this post

    Hi Brice,

    The virtual scrolling functionality is currently not supported for grouped data, but this feature is under development, and you can expect it in an upcoming Grid package release, when it is ready and properly tested.

    Thank you for the understanding.

    Regards,
    Dimiter Topalov
    Progress Telerik
    Try our brand new, jQuery-free Angular 2 components built from ground-up which deliver the business app essential building blocks - a grid component, data visualization (charts) and form elements.
  3. Roger
    Roger avatar
    2 posts
    Member since:
    Aug 2017

    Posted 08 Feb Link to this post

    Any word on this? I didn't realize grouping was going to have this negative effect on larger datasources needing virtual scrolling until it was too late.

    Someone else is saying it's not actually in development.
    https://www.telerik.com/forums/limitations-of-virtual-scrolling

  4. Dimiter Topalov
    Admin
    Dimiter Topalov avatar
    899 posts

    Posted 09 Feb Link to this post

    Hello Roger,

    You can use virtual scrolling in combination with grouped data by utilizing the kendoGridGroupBinding directive. The directive supports only the processing of in-memory data and you have to provide the full set of data that will be processed:

    https://www.telerik.com/kendo-angular-ui/components/grid/scroll-modes/#toc-using-virtualization-with-grouping

    The limitation regarding this functionality is that it needs all data to be available on the client so that it can be processed properly during grouping and scrolling.

    I hope this helps.

    Regards,
    Dimiter Topalov
    Progress Telerik
    Try our brand new, jQuery-free Angular components built from ground-up which deliver the business app essential building blocks - a grid component, data visualization (charts) and form elements.
  5. Roger
    Roger avatar
    2 posts
    Member since:
    Aug 2017

    Posted 09 Feb in reply to Dimiter Topalov Link to this post

    HI Dimiter,

    These directive links are pointing to Kendo UI for Angular.  We're using the Kendo UI for JQuery, though we are using it with Angular 1.  We are at least sending all of the data to the client to be processed.  So it sounds like we're on the right track.  Has the same support been introduced to Kendo UI for Angular?

  6. Dimiter Topalov
    Admin
    Dimiter Topalov avatar
    899 posts

    Posted 13 Feb Link to this post

    Hi Roger,

    Thank you for the clarification. As the initial question in this thread was for the Kendo UI for Angular Grid I assumed the same for your question too.

    Virtual scrolling with grouping is not supported in the jQuery version of the Grid, but now there is an endless scrolling functionality that works together with grouping. You can find further details and examples in the following resources:

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

    https://demos.telerik.com/kendo-ui/grid/endless-scrolling-local

    https://demos.telerik.com/kendo-ui/grid/endless-scrolling-remote

    I hope this helps.

    Regards,
    Dimiter Topalov
    Progress Telerik
    Try our brand new, jQuery-free Angular components built from ground-up which deliver the business app essential building blocks - a grid component, data visualization (charts) and form elements.
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