title: How to find if an apex:inputField is disabled
body: <p>From a VisualForce controller, how can I find if a dependent pick-list inputfield is disabled? </p>
  
  <p>There does not seem to be an accessible 'disabled' property for the field.  I am creating validation to make sure fields on a visualForce page are filled out. I do not want to do the validation on the dependent pick-list when there are no values to select, and it is in a disabled state. </p>