Question

Ext.define('GoogleMarkerModel', {
        extend: 'Ext.data.Model',
        fields: ['ID','Locating','MainPower','Acc','PowerOff','Alarm','Speed','Direction','Latitude','Longitude','DateTime','MainID','IOState','OilState']
    });

    var MarkerStore = Ext.create('Ext.data.JsonStore', {
        model: 'GoogleMarkerModel',
        autoLoad: true,
        proxy: {
            type: 'ajax',
            url: 'get-googlemarker.php',
            baseParams: {  //here you can define params you want to be sent on each request from this store
                        mainid: 'value1'
                        },
            reader: {
                type: 'json',
            }

        }
    });

MarkerStore.load({
params: {  
        mainid: 1,
        }
})

这是firebug中的记录返回，我试图用alert(MarkerStore.getCount());返回0来记录记录？为什么呢？
我仔细检查字段名称，都是正确的。这有什么不对？

[{"ID":"1808","Locating":"1","MainPower":"0","Acc":"1","PowerOff":"1","Alarm":"128","Speed":"0","Direction":"293","Latitude":"5.391788482666016","Longitude":"100.29693603515625","DateTime":"2013-02-19 15:44:36","MainID":"1","IOState":"0","OilState":"0"}]

更新

Ext.define('GoogleMarkerModel', {
    extend: 'Ext.data.Model',
    idProperty:'MainID',
    fields: ['ID','Locating','MainPower','Acc','PowerOff','Alarm','Speed','Direction','Latitude','Longitude','DateTime','MainID','IOState','OilState']
});

var MarkerStore = Ext.create('Ext.data.JsonStore', {
    model: 'GoogleMarkerModel',
    autoLoad: true,
    proxy: {
        type: 'ajax',
        url: 'get-googlemarker.php',
        baseParams: {  //here you can define params you want to be sent on each request from this store
                    mainid: 'value1'
                    },
        reader: {
            type: 'json',
            idProperty : 'MainID',
        }

    }
});

我添加了idproperty，但仍然无法正常工作

Answer 1

我不明白你为什么要使用idProperty？

看一下api-docs给出了一个简短的例子。你的代理阅读器应该看起来很相似，你的json就是这样。使用root属性。

JSON记录计数返回0？ EXTJS 4

更新

1 个答案: