Hi,

Please check below code, I can see grid filter row , but it is not filtering data.
Do I need to write any code for filtering data from data store.

Code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <title> New Document </title>
  <meta name="Generator" content="EditPlus">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">


  <link rel="stylesheet" type="text/css" href="css/ext-all.css" />
  <script type="text/javascript" src="adapter/ext/ext-base.js"></script>
  <script type="text/javascript" src="ext-all.js"></script>
  
  <script type="text/javascript" src="ext-all.js"></script>


 <script type="text/javascript" src="GridHeaderFilters.js"></script>


    <script type="text/javascript">
Ext.onReady(function() {


              // sample static data for the store
   var fields=[{
          type: 'string',
          name: 'item'
    },{
          type: 'string',
          name: 'description'
    },{
          type: 'string',
          name: 'po'
    },{
          type: 'string',
          name: 'style'
    },{
          type: 'string',
          name: 'size'
    },{
          type: 'int',
          name: 'ysqty'
    },{
          type: 'int',
          name: 'ssqty'
    },{
          type: 'string',
          name: 'remark'
    }]
    var columns=[{
       dataIndex: 'item',
       header: 'Item',
       filter: {xtype:"textfield", filterName:"CODE"},
       enableKeyEvents: true
    },{
       dataIndex: 'description',
       header: 'Description',
       width:300,
       filter: {xtype:"textfield", filterName:"CODE"},
       enableKeyEvents: true
    },{
       dataIndex: 'po',
       header: 'PO'
    },{
       dataIndex: 'style',
       header: 'Style'
    },{
       dataIndex: 'size',
       header: 'Size'
    },{
       dataIndex: 'ysqty',
       header: 'ysqty'
    },{
       dataIndex: 'ssqty',
       header: 'ssqty'
    },{
       dataIndex: 'remark',
       header: 'remark'
    }]
    var data=[['item1','aaaaa','PO1','style1','L',90,85,'SDFDSF'],['item1','aaaaa','PO1','style1','M',70,65,'SDFDSF']
    ,['item1','aaaaa','PO2','style4','M',70,65,'SDFDSF'],['item2','aaaaa','PO1','style1','M',70,65,'SDFDSF']
    ,['item2','aaaaa','PO1','style1','M',70,65,'SDFDSF'],['item2','aaaaa','PO1','style1','M',70,65,'SDFDSF']]
    
    var grid = new Ext.grid.GridPanel({
        renderTo: 'grid',
        title: 'Sales By Location',
        width: 1000,
        height: 400,
        store: new Ext.data.ArrayStore({
            fields: fields,
            data: data
        }),
        columns: columns,
        viewConfig: {
            forceFit: true
        },
        plugins: [new Ext.ux.grid.GridHeaderFilters()]
    });
    
})
    </script>
 </head>


 <body> <div id="grid"></div>
 
 </body>
</html>