extjs4 - How to set combo's options/ Store dynamically -


i using itscomponentcolumn in grid.

i want set different store every user.

if in grid there 4 user's , want set every user different combo store when user click on combo, see option's depending upon permission, or store set.

xtype: 'itscomponentcolumn',             text : '<b>permission</b>',             width: 150,             dataindex: 'permission',             items: function(value,record) {             return {                  xtype: 'combobox',                 store: [[0,'view only'], [1,'view & edit'], [2,'view,edit & delete'],[3,'no access']],                 //store:combo_store,                 querymode:'local',                 displayfield: 'display',                 valuefield: 'value',                 name:'permission',                 forceselection:true,                 width: 145,                 listeners: { }

i can not attached image. imagine there grid 5 records. grid has 2 columns, user name, permission in permission column showing combo , code gave above.

suppose there vivek user , if has view permission's want show view in combo next vivek record.

same other user's.

i have tried set store using bindstore, didn't work me.

please suggest me how ?

after suggestion code 

xtype: 'itscomponentcolumn',             text : '<b>permission</b>',             width: 250,             sortable:false,             dataindex: 'permission',             items: function(value,record) {             return {                  xtype: 'combobox',                 store: new ext.data.store({                     proxy: {                         type: 'ajax',                         url: combostoreurl+"&currenetuserid="+record.get("userid"),                         reader: {                             type: 'json',                             root: 'jsonstore'                         }                     },                     autoload: true                 }),

but can know why give call server each time? mean every record.i guess there must other way because have permission in grid's store.

my actual grid code this.

var store = ext.create('ext.data.store',              {                 storeid: 'sharecomponentstoreid',                  fields: ['userid','username','permission','isprojectowner'],                  proxy: {                     type: 'ajax',                     url:strurl,                     reader:                      {                         root: 'rootsharegrid',                          totalproperty: 'totalcount'                     },                     writer:                      {                         type: 'json',                          writeallfields: false,                          allowsingle: false,                          encode: true,                          root: 'row'                     }                  }              });    var sharegrid = ext.create('ext.grid.panel', {             id: 'sharecomponentgrid',             enablecolumnmove:false,             store: store,         columns: [         {             text: '<b>name</b>',             flex: 1,                         sortable:false,             width: 100,             dataindex: 'username'         },         {              xtype: 'itscomponentcolumn',             text : '<b>permission</b>',             width: 250,             sortable:false,             dataindex: 'permission',             items: function(value,record) {             return {                  xtype: 'combobox',                 store: new ext.data.store({                     proxy: {                         type: 'ajax',                         url: combostoreurl+"&currenetuserid="+record.get("userid"),                         reader: {                             type: 'json',                             root: 'jsonstore'                         }                     },                     autoload: true                 }),                 querymode : 'local',                 displayfield: 'display',                 valuefield: 'value',                 name:'permission',                 forceselection:true,                 width: 200,

so record.get('permission') has users permission.

i want add permission combo store.

i.e. default combostore + user's permission.

hope able explain here.

please reply me possible on this

there several ways of doing of course. suggest have permissions store autoload:true. fetch user permissions right away , available combobox when grid loads.


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