展开dijit.tree中的所有节点

是否有一个好的方法来展开/关闭 dijit.Tree ?

对于寻找答案的人,请将其放入初始化代码中:

var treeControl = new dijit.Tree({
    model: treeModel,
    expandAll: function() {
        // summary:
        //     Expand all nodes in the tree
        // returns:
        //     Deferred that fires when all nodes have expanded

        var _this = this;

        function expand(node) {
            _this._expandNode(node);

            var childBranches = dojo.filter(node.getChildren() || [], function(node) {
                return node.isExpandable;
            });

            var def = new dojo.Deferred();
            defs = dojo.map(childBranches, expand);
        }
        return expand(this.rootNode);
    }
});

至少,这对我有用。你也可以这么做 collapseAll() 你只需要换个地方 _this._expandNode(node); 具有 _this._collapseNode(node);