ExtJs写本地ArrayStore,ComboBox调用

//自定义国内、国外下拉框

var sCurStore = new Ext.data.ArrayStore({ //设备状态store
fields: ["ckey", "cvalue"],
data: [['CNY', "国内"], ['USD', "国外"]],  //取data值
id: "ckey",
toValue: function (v) {
if (v) {
var rec = sCurStore.query("ckey", v, true, true).items[0];
return rec ? rec.data.cvalue : v;
}
}
});

//ComBox调用

var S_CUR_ID = new ef.ComboBox({
name: 'myname',
hiddenName: 'myhiddenName',
store: sCurStore,  //调用stroe
displayField: 'cvalue',
valueField: 'ckey',
mode: 'local',
triggerAction: 'all',
width: 80
})

//JSON前后台交互

var p_store = new Ext.data.JsonStore({ //数据集
url: "URL",  //后台URL
fields: ["Settle_Amount_Domcur"],  //查找数据库值name
root: "data",
baseParams:{
page: "1",
sfields:['PO_RECEIPT_HDR.CUR_ID'].join(prj.colSplit),//传递数据库值name
sfieldtypes: ['string'].join(prj.colSplit),  //数据类型
relations: ["="].join(prj.colSplit),  //  ==> sfields[i]-relations[i]-store["cvalue"](该值从S_CUR_ID中取，从另一个方法中用getValue()取)==>sqleg:PO_RECEIPT_HDR.CUR_ID =  'CNY'
orders: ' order by PO_RECEIPT_HDR.RECEIPT_ID '
},
totalProperty: "totalCount"
});