title: What is the syntax for using the RadGrid between filter
body: <p>What is the syntax for using the RadGrid between filter in the built-in context menu?  I am using a DataTable as my datasource.  When I apply the 'greater than' filter it works, but the between filter isn't working.   I have tried:</p>
  
  <pre><code>81000,82000
  81000|82000
  81000 and 82000
  </code></pre>