// data has to be tree structured

        var oData = {

                root:{

                    name: "root",

                    0: {

                        name: "item1",

                        0: {

                            name: "subitem1",

                            0: {

                                name: "subsubitem1"

                            },

                            1: {

                                name: "subsubitem2"

                            }

                        },

                        1: {

                            name: "subitem2",

                            0: {

                                name: "subsubitem3"

                            }

                        }

​

                    },

                    1:{

                        name: "item2",

                        0: {

                            name: "subitem3"

                        }

                    }

​

                }

        };

          var oModel = new sap.ui.model.json.JSONModel();

          // set the data to the model

          oModel.setData(oData);

​

          var oTree = new sap.ui.commons.Tree("tree");

          oTree.setWidth("100%");

          // set the model to the tree

          oTree.setModel(oModel);

​

          var oTreeNodeTemplate = new sap.ui.commons.TreeNode("node");

          oTreeNodeTemplate.bindProperty("text", "name");

          oTreeNodeTemplate.setExpanded(true);

​

          oTree.bindAggregation("nodes", "/root", oTreeNodeTemplate);

//oTree.fireSelect(item1,/root/1);

​

          oTree.placeAt("body");

          oTree.getNodes()[0].setIsSelected(true);