title: Extjs4, How to get textfield value
body: <p>I have a problem with getting textField value.</p>
  
  <p>View : </p>
  
  <p>I have Toobar variable and I add to tbar of my panel.</p>
  
  <pre><code>var orderListTbar = Ext.create('Ext.Toolbar',{
      id : 'orderListTbar',
      items : [
          '',{
              xtype : 'radiofield',
              name : 'searchType',
              value : 'order_name',
              boxLabel : 'Order Name'
          },'',{
              xtype : 'radiofield',
              name : 'searchType',
              value : 'order_no',
              boxLabel : 'Order No'
          },'',{
              xtype : 'radiofield',
              name : 'searchType',
              value : 'status',
              boxLabel : 'Status'
          },'=',{
              xtype : 'textfield',
              name : 'keyword',
              value : 'Keyword'
          },'|',{
              xtype : 'datefield',
              name : 'order_from',
              fieldLabel : 'From ',
              labelWidth : 40,
              width : 150,
              value : new Date() 
          },'~',{
              xtype : 'datefield',
              name : 'order_to',
              fieldLabel : "To ",
              labelWidth : 40,
              width : 150,
              value : new Date()
          },'|',{
              xtype : 'button',
              name : 'searchBtn',
              text : "Search"
          }
      ]
  });
  </code></pre>
  
  <p>And In my controller. I want to get the fields value.</p>
  
  <pre><code>init : function(application){        
  
          this.control({
              "#orderListTbar button[name=searchBtn]" : {
                  click : function(){
                      orderFrom = Ext.ComponentQuery.query('#orderListTbar [name=order_from]');
                      console.log(orderFrom); // it return Object as well
                      console.log(orderFrom.value); // BUT, it return undefined!!!! @.@
  
                  }
              }
          });
      },
  </code></pre>
  
  <p>anybody know what I did wrong?</p>
  
  <p>and If you have found something wrong in my codes, please advice me.</p>
  
  <p>Thank you!</p>