title: How to register a stylesheet on a Master Page within a Web Part
body: <p>How would I register a Style Sheet on the Master Page within a SharePoint Web Part. In other words how would I add a CSS link on the master page, at run time, and the code which does this is present in a custom web part. </p>
  
  <p>I do not want to change the Master Page directly.</p>
  
  <p>I could not see anything in the API (this.Page.Master) which would help me.</p>
  
  <p>Thanks for your help.</p>