取值：

var ToNodes = $("#txtTONodesID").combobox('getValues').join(",").replace(/^,/, "");

赋值：

var nodes = node.TONodesID.split(',');

$("#txtTONodesID").combobox('setValues', nodes);

初始化：

    $.get("../WFSetting/WFNodesHandler.ashx?handlerType=GetToNodes", { version: version, IID: IID }, function (data) {

        data = eval(data);

        if (data != null && data != '') {

            $("#txtTONodesID").combobox({

                data: data,

                valueField: 'Nid',

                textField: 'Nname',

                multiple: true,

                panelHeight: 'auto'

            });

        }

    });