TreeGrid sort by hidden field

[mcronin]

Is it possible to sort by a hidden field in a TreeGrid? In this code sample I am trying to sort by the field sortOrder. Sorting only seems to work if the field is visible. I would prefer not to show the field as it would not be relevant to the user.

        TreeGrid treeGrid = new TreeGrid();  
        treeGrid.setCanEdit(false);  
        treeGrid.setLoadDataOnDemand(false);  
        treeGrid.setWidth100();  
        treeGrid.setHeight(400);  
        treeGrid.setDataSource(datasource);  
        treeGrid.setNodeIcon("icons/16/person.png");  
        treeGrid.setFolderIcon("icons/16/person.png");  
        treeGrid.setShowOpenIcons(false);  
        treeGrid.setShowDropIcons(false);  
        treeGrid.setClosedIconSuffix("");  
        treeGrid.setAutoFetchData(true);  
        treeGrid.setShowHeader(true);
        TreeGridField nameField = new TreeGridField("name");  
        TreeGridField sortOrder = new TreeGridField("sortOrder");  
        sortOrder.setName("sortOrder");
        sortOrder.setHidden(true);
        nameField.setCanSort(false);
 
       
        treeGrid.setFields(nameField, sortOrder); 
		treeGrid.setSortField("sortOrder");
		treeGrid.setSortDirection(SortDirection.ASCENDING);

[Isomorphic]

You can sort the underlying Tree dataset, but right now this would require JSNI - call tree.sortByProperty("fieldName", true/false)

[rashika]

I found this helpful post about sorting by hidden field.

treeGrid.setSort(new SortSpecifier[]{new SortSpecifier("fieldName",SortDirection.Ascending)});

This works.While sorting, this does not check if the field is hidden or not.