title: Disable creation of Autofilter on DevExpress GridView
body: <p>when I fill a datatable and next I do</p>
  
  <pre><code> xtraGrid.dataSource = dataTable;
  </code></pre>
  
  <p>GridView create automatically a lot of filter, for example:</p>
  
  <pre><code> Column Age
   10
   33
   61
  </code></pre>
  
  <p>When I click on the filter icon in the Column, I have "10, 33, 61".
  I think that this process is not so lightweight and it make longer time for GridView loads, isn't true?
  I don't need autofilter, do you know if I can disable autofilter for ALL column programmatically?
  Thanks.</p>