Performance Issue GridView Grouping

3 posts, 0 answers
  1. Ramachandran
    Ramachandran avatar
    2 posts
    Member since:
    Aug 2010

    Posted 31 May 2012 Link to this post

    We are restricting a search to 500 and then doing grouping by a column.
    This column has less groups, but each group has 100 + entries.
    The grouping functionality works fine when we have lot of groups with less number of children, but with few groups and a lot of children to each group is causing performance hit.

    We are using <telerik:RadGridView.GroupDescriptors> for grouping

    Can anything be done to imporve the performance?

  2. Dimitrina
    Dimitrina avatar
    3769 posts

    Posted 31 May 2012 Link to this post


     Generally you will get performance issues when the GridView is grouped, because the data virtualization is off. In that case the GridView is aware of all the items. Improving the performance is an on-going task and we work on it.

    All the best,
    the Telerik team

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  3. Daní
    Daní avatar
    314 posts
    Member since:
    Feb 2008

    Posted 14 Jun 2012 Link to this post

    This is a really annoying issue. I suspect there's something else than virtualization. I have a GridView grouped by a property by default with about 20 rows. Setting AutoExpandGroups property to true causes filtering very slow.

    I hope you can solve this issue as soon as possible. Unfortunately, I'm not very optimistic as I've seen the this Issue is open in PITS but not scheduled yet.
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