Extjs 4 treeStore appendChild after a specific node

Question

How to append a child on a specific position (as default the new child will appear after the last node)

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My solution is to use a variable of order

function treeGridReorder(){
        var i=0 ,j = 0;
        treeGrid.getView().getStore().each(function(node){
            node.data.ordre=i;
            j=0;
            node.eachChild(function(cnode){
                cnode.data.ordre=j;
                j++;
            });
            i++;
        })
    }

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function add_reponse(quest, qIndex){
        questStr.sort('ordre', 'ASC');
        var now=new Date().getTime();
        questStr.getNodeById(quest).appendChild({id:now, libelle:'Nouvelle réponse',parentq:quest,  saved:false, leaf: true});
        treeGridReorder()
    }

Answer 1

Have you tried : http://docs.sencha.com/ext-js/4-1/#!/api/Ext.data.NodeInterface-method-insertChild ? This takes an index parameter.