title: RowFilter only works with column name in C#
body: <p>my RowFilter in windows form application works just fine with column name which NOT is an integer. But the other fields with integer nothing happens. This is my code:</p>
  
  <pre><code>DV.RowFilter = string.Format("group_id LIKE '%{0}%' ", textBox1.Text); 
  </code></pre>
  
  <p>If it has to do with the format, have no idea.</p>