ExtJs写本地ArrayStore,ComboBox调用

1.自定义本地ArrayStore

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[];
            return rec ? rec.data.cvalue : v;
        }
    }
});

2.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:
})

3.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: "",
        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"
});