Threaded View

  1. 6 Nov 2012 1:11 PM #1
    Cloudgatherer
    Cloudgatherer is offline
    Sencha Premium Member
    Join Date
    Jul 2011
    Posts
    14
    Vote Rating
    0
    Answers
    1
    Cloudgatherer is on a distinguished road
      0  

    Default Answered: GroupingView - Custom Sort on GroupBy Column?

    Answered: GroupingView - Custom Sort on GroupBy Column?


    This strikes me as very simple, yet how to do this is eluding me.

    Suppose we a table/grid with 3 columns:
    - Group name (String)
    - Field name (String)
    - Field value (String)

    I want to sort by 1) group then 2) name. Seems simple, right?

    Creating the requisite ListStore, ColumnConfigs, Grid, and StoreSortInfo objects, I can achieve the sort ordering I want in the standard GridView.

    When I change the Grid's view to a GroupingView, specifying the groupBy as (obviously) group name, my custom sorting now seems to be ignored. I can easily go back and forth comparing the grid views, and the behavior works as expected in a regular GridView, but the sorting on the groupBy field seems to be ignored by the GroupingView.

    Any clues on what detail I'm missing to sort the groupBy column for a GroupingView?
    Reply With Quote Reply With Quote
  2. Best Answer Posted by Cloudgatherer

    I was referring to doing a local sort and I've figured out the detail. The createStoreSortInfo reference was the clue, thanks.

    I had done the sorting via:
    Code:
    StoreSortInfo<Model> sortInfo = new StoreSortInfo<Model>(modelValueProvider, modelComparator, SortDir.ASC);
store.addSortInfo(sortInfo);
    Instead, it must be done on the column config:
    Code:
    ColumnConfig<Model, String> modelColumnConfig = new ColumnConfig<Model, String>(modelValueProvider);
modelColumnConfig.setComparator(modelComparator);
    GroupingView doesn't look at the first sort to see if that is correct, it automatically generates one by grabbing the Comparator from the ColumnConfig (which I had not set, and so I got the default sorting).