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"

});