使用：

$("div.id_100 > select > option[value=" + value + "]").attr("selected",true);

这对我有用 . 我正在使用此代码解析fancybox更新表单中的值，而我在app.js中的完整源代码是：

jQuery(".fancybox-btn-upd").click(function(){

var ebid = jQuery(this).val();

jQuery.ajax({

type: "POST",

url: js_base_url+"manajemen_cms/get_ebook_data",

data: {ebookid:ebid},

success: function(transport){

var re = jQuery.parseJSON(transport);

jQuery("#upd-kategori option[value="+re['kategori']+"]").attr('selected',true);

document.getElementById("upd-nama").setAttribute('value',re['judul']);

document.getElementById("upd-penerbit").setAttribute('value',re['penerbit']);

document.getElementById("upd-tahun").setAttribute('value',re['terbit']);

document.getElementById("upd-halaman").setAttribute('value',re['halaman']);

document.getElementById("upd-bahasa").setAttribute('value',re['bahasa']);

var content = jQuery("#fancybox-form-upd").html();

jQuery.fancybox({

type: 'ajax',

prevEffect: 'none',

nextEffect: 'none',

closeBtn: true,

content: content,

helpers: {

title: {

type: 'inside'

}

}

});

}

});

});

我的PHP代码是：

function get_ebook_data()

{

$ebkid = $this->input->post('ebookid');

$rs = $this->mod_manajemen->get_ebook_detail($ebkid);

$hasil['id'] = $ebkid;

foreach ($rs as $row) {

$hasil['judul'] = $row->ebook_judul;

$hasil['kategori'] = $row->ebook_cat_id;

$hasil['penerbit'] = $row->ebook_penerbit;

$hasil['terbit'] = $row->ebook_terbit;

$hasil['halaman'] = $row->ebook_halaman;

$hasil['bahasa'] = $row->ebook_bahasa;

$hasil['format'] = $row->ebook_format;

}

$this->output->set_output(json_encode($hasil));

}