Easyui ComboBox combo Box

The default selection of the first item, add please select, value problem

<inputclass="Easyui-combobox"Id="DDLWHS"Name="DDLWHS"/>//Combox Default selection of the first$ (function () {$ ('#ddlWHS'). ComboBox ({URL:".. /.. /HR/ATTTYPE/LIST_ATTTYPE.ASHX?TYPE=BINDDDL", Valuefield:'Workinghour_begintime', TextField:'Workinghour_name', Editable:false, Onloadsuccess:function (data) {varData = $ ('#ddlWHS'). ComboBox ('GetData'); if(Data.length >0) {                                        $("#ddlWHS"). ComboBox ('Select', data[0].                                    Workinghour_begintime);                        }                                }                            });                       }); //combox Please select$ (function () {$ ('#ddlWHS'). ComboBox ({URL:".. /.. /HR/ATTTYPE/LIST_ATTTYPE.ASHX?TYPE=BINDDDL", Valuefield:'Workinghour_begintime', TextField:'Workinghour_name', Editable:false,                                //returns the filtered data to be displayedloadfilter:function (data) {varo = [{'Workinghour_begintime':'0','Workinghour_name':'--Please choose- -'}]; returno.concat (data); },                                //triggered when remote data load is successfulonloadsuccess:function (data) {varData = $ ('#ddlWHS'). ComboBox ('GetData'); if(Data.length >0) {                                        $("#ddlWHS"). ComboBox ('Select', data[0].                                    Workinghour_begintime);                                  }}, Onselect:function (record) { //Get ValuesAlert ($ ("#ddlWHS"). ComboBox ("getValues")); //Get textAlert ($ ("#ddlWHS"). ComboBox ("GetText"));                        }                            }); });

Easyui ComboBox combo Box