为何同样的combox 一个可以正常显示 一个却只显示id值？？

Question

货物类型 代码
    var hwlx_httpProxy = new Ext.data.HttpProxy({
                url : "Data/dangan/GetHwlx.aspx"            });
    var hwlx_create = new Ext.data.Record.create([{
                name : "id",
                mapping : "id"
            }, {
                name : "name",
                mapping : "name",
                type : "string"
            }]);    var hwlx_jsonReader = new Ext.data.JsonReader({
                totalProperty : "totalProperty", // 总记录数
                root : "data" // 所有的数据（json对象数组）
            }, hwlx_create)    var hwlx_Store = new Ext.data.Store({
                proxy : hwlx_httpProxy,
                reader : hwlx_jsonReader
            });
            
    hwlx_Store.load();    var combo_hwlx = new Ext.form.ComboBox({
        store:hwlx_Store,
        id:'cyf_hwlx',
        name:'cyf_hwlx',
        hiddenName:'cyf_hwlxhidden',
        fieldLabel:'货物类型',
        width:100,
        emptyText:'请选择...',
        triggerAction:'All',
        valueField:'id',
        displayField:'name',
        selectOnFocus:true,
        allowBlank:false,
        mode:'local',
        blankText:'请选择货物类型'
    });     送达站代码
    var com_httpProxy = new Ext.data.HttpProxy({
                url : "Data/dangan/GetCompany.aspx"            });
    var com_create = new Ext.data.Record.create([{
                name : "companyid",
                mapping : "companyid"
            }, {
                name : "companyname",
                mapping : "companyname",
                type : "string"
            }]);    var com_jsonReader = new Ext.data.JsonReader({
                totalProperty : "totalProperty", // 总记录数
                root : "data" // 所有的数据（json对象数组）
            }, com_create)    var sdz_Store = new Ext.data.Store({
                proxy : com_httpProxy,
                reader : com_jsonReader
            });
            
    sdz_Store.load();    var combo_sdz = new Ext.form.ComboBox({
        store:sdz_Store,
        id:'cyf_sdzmc',
        name:'cyf_sdzmc',
        hiddenName:'cyf_sdzmchidden',
        fieldLabel:'送达站',
        width:100,
        emptyText:'请选择...',
        triggerAction:'All',
        valueField:'companyid',
        displayField:'companyname',
        selectOnFocus:true,
        allowBlank:false,
        mode:'local',
        blankText:'请选择送达站'
    });   {
                    columnWidth:.3,
                    layout:'form',
                    items:[
                        combo_sdz    //送达站combox 
                    ]
                },{
                    columnWidth:.3,
                    layout:'form',
                    items:[
                       combo_hwlx  //货物类型combox
                    ]
                }

Answer 1

看看你后台绑定companyname的值怎么绑定的吧

Answer 2

这是送达站的绑定代码
 SQLHelper sqlHelp = new SQLHelper();
        JSONHelper json = new JSONHelper();
        json.success = true;
        string jsons = "";        DataSet ds = sqlHelp.GetDataSet("select companyid,companyname from company ");
        foreach (DataRow row in ds.Tables[0].Rows)
        {
            json.AddItem("companyid", row["companyid"].ToString());
            json.AddItem("companyname", row["companyname"].ToString());
            json.ItemOk();            jsons = json.ToString();  
        }
        Response.Write(jsons);这是货物类型的绑定代码        SQLHelper sqlHelp = new SQLHelper();
        JSONHelper json = new JSONHelper();
        json.success = true;
        string jsons = "";        DataSet ds = sqlHelp.GetDataSet("select id,name from bm_hwlx ");
        foreach (DataRow row in ds.Tables[0].Rows)
        {
            json.AddItem("id", row["id"].ToString());
            json.AddItem("name", row["name"].ToString());
            json.ItemOk();            jsons = json.ToString();
        }
        Response.Write(jsons);jsons 都是正常输入值 
以下是company 表的json输出
{totalCount:3,success:true,error:"",singleInfo:"",data:[{"companyid":"100","companyname":"恩速"},{"companyid":"200","companyname":"闽通"},{"companyid":"300","companyname":"永杰"}]}