title: ExtJS: return total rows/records in json store
body: <p>I have a json store that returns values in json format. Now I need to get the number of rows/records in the json string but when I use <code>store.getCount()</code> function it returns 0, but the combobox is populated with rows, and when I use <code>store.length</code> I get undefined, probably because its not an array anymore, its returning from store, which is calling php script. Anyways, whats the best approach for this problem?</p>