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POWriting a Custom Reader in ExtJS
 

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    <p>I am new to ExtJS and am playing around with it, I am receiving following JSON from the server as shown below</p> <pre><code>{"tid":1,"action":"HelloWorld","method":"getData", "result": {"InstId":"1", "value": [ {"country.stateId":"101", "country.stateName":"TA"}, {"country.stateId":"102", "country.stateName":"ABC"}, {"country.stateId":"103", "country.stateName":"DEF"}]}", "type":"rpc"} </code></pre> <p>and I need to extract values form the above JSON and populate the combobox. To do this job I need to write a custom Reader to read and populate the in the combobox. Can anyone of you please help me in writing a custom reader?</p> <p>Following are the various snippet</p> <pre><code>Ext.define('AM.store.TestStore', { extend: 'Ext.data.Store', alias : 'widget.testStore', model: 'AM.model.TestModel', autoload:true, proxy: { type: 'direct', directFn: HelloWorld.getData, extraParams:[ {'InstId': '1', 'boxid':'id'}, {'InstId': '1', 'name':'states'} ], reader:{ type:'json', root:'result' } }); </code></pre> <p>Following is the view object</p> <pre><code>Ext.define('AM.view.combobox.TestView' ,{ extend: 'Ext.form.ComboBox', alias : 'widget.TestView', fieldLabel: 'States', store:'TestStore', renderTo: Ext.getBody(), displayField: 'country.stateName', valueField: 'country.stateId', autoselect:false }); </code></pre> <p>Following is my Model Object</p> <pre><code>Ext.define('AM.model.TestModel', { extend: 'Ext.data.Model', alias : 'widget.TestModel', fields: [ {name: 'country.stateId'}, {name: 'country.stateName'}] ); </code></pre> <p>Following is my controller</p> <pre><code>Ext.define('AM.controller.Funds', { extend: 'Ext.app.Controller', alias : 'widget.FundsController', views: ['combobox.TestView'], stores: ['TestStore'], models:['TestModel'] ); </code></pre> <p>Can anyone please help me to write a custom JSON Reader?</p> <p>Thanks<br/> Phani Kumar</p>
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