openEditDialog: function(oEvent) {
            var oView = this.getView();
            var oSelectedItem = oEvent.getSource();
            var oContext = oSelectedItem.getBindingContext("person");
            var sPath = oContext.getPath();
            var oView = this.getView();

            if (!this._oDialog) {
                Fragment.load({
                    id: "EditFr2",
                    name: "com.app10.view.EditFragment",
                    controller: this
                }).then(function(oDialog) {
                    this._oDialog = oDialog;
                    oView.addDependent(oDialog);

                    oDialog.bindElement({
                        path: sPath,
                        model: "person"
                    });

                    oDialog.open();

                }.bind(this));
            } else {
                this._oDialog.bindElement({
                    path: sPath,
                    model: "person"
                });
                this._oDialog.open();
            }
        }