title: Checking if a ValidationGroup is valid from code-behind
body: <p>Is there a method I can call that retrieves a boolean value of whether or not a particular ValidationGroup is valid?  <strong>I don't want to actually display the validation message or summary</strong> - I just want to know whether it is valid or not.</p>
  
  <p>Something like:</p>
  
  <pre><code>Page.IsValid("MyValidationGroup")
  </code></pre>