$("#selectDock").combobox({valueField: 'value',textField: 'label',panelHeight:"auto",data: [{label: '靠上',value: 'top',selected:true //默认选中项}, {label: '靠左',value: 'left'}],onSelect: function (rec) {//选中事件}
});

 $("#selectCategory").combobox({url: "http://www.cnblogs.com/Ajax/sys/DomainCategory.ashx?Method=GetAllCategorys",valueField: "CategoryID",textField: "CategoryName"　　　　　　  value: '-1',//默认选中项//panelHeight: "auto",//去掉该属性，当内容过多的时候就会自动出现滚动条});

$("#A_selectCategory").combobox({url: "http://www.cnblogs.com/Ajax/sys/DomainCategory.ashx?Method=GetAllCategorys",valueField: "CategoryID",textField: "CategoryName",editable:false
});

 $("#select_Dic").combobox({url: "http://www.cnblogs.com/Ajax/sys/WebServiceBase.ashx?Method=GetRefItems", //获取所有私有域valueField: "Code",textField: "Name",panelHeight: "auto",editable: false, //不允许手动输入onLoadSuccess: function () { //数据加载完毕事件var data = $('#select_Dic').combobox('getData');if (data.length > 0) {$("#select_Dic").combobox('select', data[0].Code);}}});

 onLoadSuccess: function () {var data = $(this).combobox('getData');if (data.length > 0) {$(this).combobox('select', data[0].Code);}
}

 $("#GC025_WRYLB").combobox({method: "post",data: [{CODE: '31', NAME: '大气环境污染源' }, { CODE: '32', NAME: '地表水体环境污染源' }, { CODE: '33', NAME: '地下水体环境污染源' },{ CODE: '34', NAME: '海洋环境污染源' }, { CODE: '35', NAME: '土壤环境污染源' }, { CODE: '36', NAME: '声环境污染源' }, { CODE: '37', NAME: '振动环境污染源' },{ CODE: '38', NAME: '放射性环境污染源' }, { CODE: '41', NAME: '电磁环境污染源' }, { CODE: '49', NAME: '其他污染对象的污染源'}],valueField: "CODE",textField: "NAME",value: '32',multiple: true, //多选editable: false,onLoadSuccess: function () {}});

var GC025_WRYLB = $('#GC025_WRYLB').combobox('getValues'); //污染源类别 这里注意是用的getValues

$('#GC025_WRYLB').combobox('setValues', ['32','33']);//后面的值是数组的形式

  var vArray = new Array();//创建一个数组var str = row.GC025_WRYLB.toString().split(',');for (var i = 0; i < str.length; i++) {vArray.push(str[i]);//循环把值添加到数组里面}$('#GC025_WRYLB').combobox('setValues', vArray);