title: How to exclude particular values in a extjs store
body: <p>THe following code is my extjs store. I would like to exclude some particular value from this store.</p>
  
  <p>For example the value such as "option 1", "option 2" would be exclude from the store, or when I retrieve this store and display in the input dropdown field.</p>
  
  <p>How can I do it?</p>
  
  <p>Thank you.</p>
  
  <pre><code> var input1store = new Ext.data.Store({
  fields: [{name: 'name'}],
  proxy:{
      type: 'ajax',
      url:    'www.requesturl.com?format=json&amp;source1',
              reader: {
          type: 'json',
          root:   'xml.result'
      }
  },
  autoLoad:false,
  sorters:    [{property: 'name', direction: 'asc'}]
  });
  </code></pre>