combobox数据加载完后设置默认值

$('#ck').combobox({

    url: '/External/GetAllCk',

    valueField: 'Ddbh',

    textField: 'Ddmc',

    onLoadSuccess: function () { //加载完成后,设置选中第一项

        var val = $(this).combobox("getData");

        for (var item in val[0]) {

            if (item == "Ddbh") {

                $(this).combobox("select", val[0][item]);

            }

        }

    }

});