about stores

[sebas2515]

I need to send params through a DataStore. how I can do it?

[mitchellsimoens]

If you need to have these params present in every request use extraParams on the proxy: http://docs.sencha.com/ext-js/4-0/#!/api/Ext.data.proxy.Ajax-cfg-extraParams

If you need to only send it in one request, use the params config in the load method.