title: Make regular expression case insensitive in ASP.NET RegularExpressionValidator
body: <p>Given this regular expression: <code>"^[0-9]*\s*(lbs|kg|kgs)$"</code>  how do I make it case insensitive?  I am trying to use this in a .net regular expression validator, so I need to specify case insensitivity in the pattern.</p>
  
  <p><strong>I can not use the RegexOptions programatically because I am specifying the regular expression in a RegularExpressionValidator</strong></p>