title: how to find the GridViewCommandColumn that set ShowSelectCheckbox=true in aspxgridview.columns?
body: <p>i need to done in programmatic and i have no idea on it. So i need to use loop to search all the  columns? For example:</p>
  
  <pre><code>  GridViewCommandColumn a= new GridViewCommandColumn();
    a.showselectcheckbox=true;
    aspxgridview1.columns.find(a);
  </code></pre>