Comments on: Ext.data.JsonStore

By: Binalf Kassa

Binalf Kassa — Mon, 01 Mar 2010 09:23:59 +0000

Hey guys, am a big fan of asp.net and working with it for the past few years.
and now I wanna use extjs with asp.net. I wanted to load data from the server to JsonStore but its giving me a headache. In JQuery I know I can pass the url + some method to call on the server but I dont know how to do it in extjs
thanks for your time inadvance
Binalf

By: Arthur Kay

Arthur Kay — Mon, 08 Feb 2010 17:08:44 +0000

Hey Luis, It doesn't look like your JSON (returned from the server) has a root element. It should look something like: { "data": [ {"mat":"1","mat_nombre":"REDES","mat_ciclo":"9"} ] } Give that a shot and let me know if you still need help. You should also try posting in the ExtJS forums... you're more likely to get a fast response!

By: Luis Castillo

Luis Castillo — Sat, 06 Feb 2010 21:06:26 +0000

Hi. Can you help me?? I need load data from JsonStore to TextFied by I don´t know.
I’ve a JsonStore as with

var materiaStore = new Ext.data.JsonStore({
autoLoad: true, //autoload the data
url: ‘fGestionPlanes.php’, //this return a json as [{"mat":"1","mat_nombre":"REDES","mat_ciclo":"9"}]

method: ‘POST’,
totalProperty: ‘totalRows’,
root: ‘data’,
fields: ['mat','mat_nombre','mat_ciclo'],
listeners: {
load: {
fn: function(store, records, options){
var _m=Ext.getCmp(‘mytextfield’);
_m.setValue(store.getAt(0).data.mat_conocimiento_prev);
});
but no liad the data in the textField

By: Arthur Kay

Arthur Kay — Fri, 21 Aug 2009 16:01:34 +0000

I did notice that if your Grid() objects use paging, you must also specify the “totalProperty” attribute in the metaData EVEN IF you had specified it in the config options for the JsonStore() class. Otherwise the paging toolbar fails to recognize that there are more records than listed on the first page.

I’m not entirely sure why, but the data store will ignore your config option.