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這篇文章主要介紹了extcombobox動態(tài)加載數(shù)據庫數(shù)據并附前后臺實現(xiàn),需要的朋友可以參考下。

前臺：

代碼如下:

varprovinceStore=newExt.data.Store({

proxy:newExt.data.HttpProxy({url:basePath+"/stationManage/station_getProvinceJSON.action"}),

reader:newExt.data.JsonReader(

{root:""},

["PROVINCEID","PROVINCENAME"]

)

});

//選擇省市

varprovinceIDadd=newExt.form.ComboBox({

anchor:'98%',

id:'provinceIDadd',

name:"provinceIDAdd1",

hiddenName:"provinceID",

displayField:"PROVINCENAME",

valueField:"PROVINCEID",

blankText:'請選擇站點所屬省份',

emptyText:'請選擇站點所屬省份',

fieldLabel:'站點所屬省份',

allowBlank:false,

editable:false,

triggerAction:'all',

store:provinceStore,

forceSelection:true,

mode:'local',

selectOnFocus:true

})

provinceStore.load();

后臺action代碼

代碼如下:

publicclassStationActionextendsBaseAction{

privateList<Map<String,Object>>provinceList;

publicvoidsetProvinceList(List<Map<String,Object>>provinceList){

this.provinceList=provinceList;

}

publicList<Map<String,Object>>getProvinceList(){

returnprovinceList;

}

publicStringgetProvinceJSON(){

Stringsql="SELECTPK_IDPROVINCEID,NAMEPROVINCENAMEFROMT_DICT_DISTRICTAWHEREA.DISTRICT_LEVEL=20";

provinceList=stationService.findBySQL(sql);

return"json_getProvinceList";

}

}

strtusxml配置

代碼如下:

<resultname="json_getProvinceList"type="json">

<paramname="root">provinceList</param>

</result>

加載靜態(tài)數(shù)據的下拉選擇框

代碼如下:

vardataType=[['0','8列'],['1','38列'],['2','21列']];

vardataTypeStore=newExt.data.SimpleStore({

fields:['dataTypeID','dataTypeName'],

data:data

});

vardataTypedd=newExt.form.ComboBox({

anchor:'98%',

id:'dataTypeadd',

name:"dataTypeAdd1",

hiddenName:"dataType",

displayField:"dataTypeName",

valueField:"dataTypeID",

blankText:'請選擇數(shù)據格式',

emptyText:'請選擇數(shù)據格式',

fieldLabel:'數(shù)據格式',

allowBlank:false,

editable:false,

triggerAction:'all',

store:unitStore,

forceSelection:true,

mode:'local',

selectOnFocus:true

})

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