TreeGrid with DataSource initialized via setTestData

[pedjak]

Hi,

why it is not possible to load nodes into a TreeGrid using a DataSource initialized via setTestData() and having client only = true? While searching for an answer, I have found in the forum statements saying that a TreeGrid can be manually initialized only by creating a Tree instance. Since TreeGrid extends ListGrid and there such technique is possible, not being able to that with TreeGrid is somehow misleading.

I have used the following snippet for testing:

        TreeGrid treeGrid = new TreeGrid();
        DS ds = new DS("foo");
        Record r1 = new Record();
        r1.setAttribute("id", "1");
        r1.setAttribute("label", "test");
        r1.setAttribute("parent", "");
        ds.setTestData(new Record[] {r1});
        treeGrid.setShowRoot(true);
        treeGrid.setDataSource(ds);
        treeGrid.setFields(new TreeGridField("label"));
        treeGrid.setHeight(400);
        addMember(treeGrid);
        treeGrid.fetchData();
         
class DS extends DataSource {
        
        public DS(String _id) {
            setID(_id);
            
            DataSourceTextField idField = new DataSourceTextField("id");
            idField.setPrimaryKey(true);
            DataSourceTextField labelField = new DataSourceTextField("label");
            DataSourceTextField parentField = new          DataSourceTextField("parent");
            parentField.setForeignKey("id");
            parentField.setRootValue("");
            setFields(idField, labelField, parentField);
            setClientOnly(true);
            
        }
    }

Best,

Predrag

[Isomorphic]

TreeGrids work normally with clientOnly DataSources (they don't even know that the DataSource is clientOnly:true). Without the actual data involved, this code snippet isn't meaningful.