$('#selectChannelForSignup_getBill').combobox({

    url:'../channel/listAdvanceChannelPage',

    queryParams:{offset:0,limit:9999,channelName:"",sourceGroupId:0,usageState:0},

    valueField : 'channelId',

    textField : 'channelName',

    editable:false,

    panelHeight:'auto',

    panelMaxHeight:200,

    loadFilter: function(data){

        console.info(data);

         //过滤数据

        var value={

                total:9999,

                rows:[]

            };

        var x=0;

         for (var i = 0; i < data.length; i++) {

             if(data[i].creditAvailable > 0){

                 value.rows[x++]=data[i];

             }

         }

         console.info(value.rows);

         return value.rows;

    }

})