View Full Version : how to add extra params when NEXT PAGE clicked on pagingtoolbar

12 Feb 2014, 5:59 AM
I use EXTJS 4.2.1.

Here is my DATA STORE.

Ext.define("user",{ extend:"Ext.data.Model", fields:[ {name:'mobile',type:'string',sortable:true}, {name:'name',type:'string',sortable:true}, {name:'month',type:'string',sortable:true}, {name:'city',type:'string',sortable:true}, {name:'mail_number',type:'string',sortable:true} ]});var user = Ext.create("user",{});var ds = Ext.create("Ext.data.Store",{ model:'user', storeId:'s_user', pageSize: 20, proxy:{ type:'ajax', timeout: 40000, url:'JSONServlet', reader:{ type:'json', root:'rows' }, writer:{ type:'json' } }, autoLoad:false });And i add some params more when ds loads.

ds.load({ params:{start:0, limit:20, 'type': Ext.getCmp('type').value, 'city': Ext.getCmp('city').value, 'date': Ext.getCmp('date').value, 'date1': Ext.getCmp('date1').value } })I put a pagingtoolbar on the bottom of the grid.

var grid = Ext.create("Ext.grid.Panel",{ ... dockedItems :[{ xtype:'pagingtoolbar', store:Ext.data.StoreManager.lookup('s_user'), dock:'bottom', displayInfo:true }], ... store : Ext.data.StoreManager.lookup('s_user') }

On the first page everything is OK, but when NEXT page is clicked, ds pramas don't POST to server. I look into the source. I find code like this.

case "next": ds.load({params:{start: this.cursor+this.pageSize, limit: this.pageSize}}); break;
how to make PAGE NEXT work as i want, I hope someone give me a hint.

12 Feb 2014, 7:00 AM
You can add use proxy.extraParams ...

listener on store:

beforeload: function() {
store.getProxy().extraParams = {}; // clear all previous
store.getProxy().extraParams.search = 'myvalue';