ExtJs Json store

Question

是否有任何方法将ExtJs网格面板的JSON存储作为二维数组发送到Controller。提前谢谢。

Answer 1

要从您的存储中获取一组记录，您可以使用：

var store = gridpanel.getStore();
var records = store.getRange();
// If you don't want any of that metadata referring to the gridpanel.
var rawRecords = records.map(function(r) {return r.data;});

要将其传递给控制器，最好的做法是从栅格面板中触发一个事件，并让控制器监听它

// Somewhere in gridpanel or a reference to whatever your custom class is
gridpanel.fireEvent('rawRecordsEvent', rawRecords);
...
// In controller
Ext.define('MyApp.controller.GridController', {
    extend: 'Ext.app.Controller',
    init: function() {
        this.control({
            // gridpanel or alias of whatever your custom class is.
            'gridpanel': {
                 rawRecordsEvent: this.onRawRecordsEvent
             }
        });
    },
    onRawRecordsEvent: function(rawRecords) {
        console.log(rawRecords);
    }
});

下面是一个很好的例子，说明如何使用控制器来监听视图组件：http://www.objis.com/formationextjs/lib/extjs-4.0.0/docs/api/Ext.app.Controller.html

Answer 2

我认为您可以使用baseParams选项来发送您需要的任何参数。例如：

var store = new Ext.data.JsonStore({
    baseParams: {some_array: [['1'],['2']]},
    ...