pass variable

i hav a controller and my problem is how can i pass variables to my php file so that i can do a new query and fill my store as json out put....

http://docs.sencha.com/ext-js/4-1/#!/guide/data

my controller

Code:

---

Ext.define('AM.controller.Users', {
    extend: 'Ext.app.Controller',
    views:[
        'user.List','user.Edit','user.West','user.Tabview','user.ReportTree','user.SearchGrid',   
    ],
    stores:[
        'Users','Policies','SearchGrids',
    ],
    models: [
        'User','Gridfill',
    ],   
    init: function() {
        this.control({
            'userlist': {
                itemclick: this.searchUser
            },
        ...........remaining codes....
         
        });
           
    },
       
searchUser: function(grid, record) {//the grid  desplayed from userlist view
  var  searchId=record.get('id');
 
  SearchGrids.load({params: searchId});
      var view = Ext.widget('searchGrid');
   
},

---

......and on my php page

Code:

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$sId=$_POST['searchId'];
then do query.....

---

// error SearchGrids is not defined and i tried this var SearchGrids= Ext.data.StoreManager.lookup('mystore'); and still the same error...what shall i do

Did you try SearchGrids = Ext.data.StoreManager.lookup('SearchGrids')?

plus 'mystore' is the storeId of my store(SearchGrids);

Controller add getters for stores:

Code:

---

searchUser: function(grid, record) {//the grid  desplayed from userlist view
  var SearchGrids = this.getSearchGridsStore(), // or SearchGrids = grid.getStore(),
      searchId=record.get('id');
 
  SearchGrids.load({
      params: {
            searchId: searchId
      },
      callback: function () {
            // store loaded
      }
  }); 
},

---

the above

Code:

---

var SearchGrids= this.getSearchGridsStore();
    SearchGrids.load({
      params: {
            searchId: searchId
      },.......

---

do exactly like i wanted but after loading the view which have a grid that uses SearchGrid the refresh button is not working....because..

Code:

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$sId=$_POST['searchId'];

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on the php file would be null...after refreshing the grid....how can i solve that.....another is i used

Code:

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var view=Ext.widget('SearchGrid');

---

to load the view...so how can i close the first opend view before another one is loaded ....i tried this one

Code:

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Ext.widget('SearchGrid').close();

---

but does not close it

Use proxy extraParams:

Code:

---

searchUser: function(grid, record) {//the grid  desplayed from userlist view
  var SearchGrids = this.getSearchGridsStore(), // or SearchGrids = grid.getStore(),
      searchId=record.get('id');
 
  SearchGrids.proxy.extraParams.searchId = searchId;
  SearchGrids.load(
      callback: function () {
            // store loaded
      }
  }); 

  if (this.searchGridWin) {
      // close opened window
      this.searchGridWin.close();
      //this.searchGridWin.destroy(); // if window closeAction != 'destroy' uncomment
      this.searchGridWin = null;
  } else {
      this.searchGridWin = Ext.widget('SearchGrid');
      this.searchGridWin.show();
  }
},

---