Re: GWT Multi columns sort with AsyncDataProvider

I have the same problem. I do not think it is advisable sorting AsyncDataProvider on the client side. I would suggest you to perform the sorting at server side and make the rpc call to return the data. 

Thanks

Ashish Tyagi

On Tuesday, July 16, 2013 7:10:19 AM UTC-4, zakaria otmani wrote:

i have a table contains 3 columns, when the user clicks in one of them the table should be sorted, i'm using AsyncDataProvider, the sort for the first column works fine, so i should do the same to the others columns. this is the code :

AsyncDataProvider<PermisoUI> providerPerfiles = new AsyncDataProvider<PermisoUI>() {        @Override      protected void onRangeChanged(HasData<PermisoUI> display) {            if(sortedPermiso) {              sortedPermiso=false;              class TipoCuotasComparator implements Comparator<Object> {                  public int compare(Object l1, Object l2) {                      PermisoUI o1 = (PermisoUI) l1;                      PermisoUI o2 = (PermisoUI) l2;                      return o2.getId().compareTo(o1.getId());                    }              }              Collections.sort(listPermisos, new TipoCuotasComparator());          }else {              sortedPermiso = true;              class TipoCuotasComparator implements Comparator<Object> {                  public int compare(Object l1, Object l2) {                      PermisoUI o1 = (PermisoUI) l1;                      PermisoUI o2 = (PermisoUI) l2;                      return o1.getId().compareTo(o2.getId());                  }              }              Collections.sort(listPermisos, new TipoCuotasComparator());          }            int start = display.getVisibleRange().getStart();          int end = start + display.getVisibleRange().getLength();          end = end >= listPermisos.size() ? listPermisos.size() : end;          List<PermisoUI> sub = listPermisos.subList(start, end);          updateRowData(start, sub);        }  };        providerPerfiles.addDataDisplay(CellTblPermisos);    //Sorting Column  AsyncHandler columnSortAplHandler = new AsyncHandler(CellTblPermisos);  CellTblPermisos.addColumnSortHandler(columnSortAplHandler);  CellTblPermisos.getColumnSortList().push(permisoColumn);          providerPerfiles.addDataDisplay(CellTblPermisos);  providerPerfiles.updateRowCount(listPermisos.size(), true);  PPerfil.clear();  PPerfil.add(CellTblPermisos);

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