title: Conditional report parameters in Reporting Services
body: <p>I have a report which requests a parameter value for <code>customerNo</code>. The report should return all values by default.</p>
  
  <p>Once the user provides a single <code>customerNo</code> value, then it should display the specified record only. </p>
  
  <p>I've found solutions for Multiple selection, but couldn't find for single text box entry.
  Thanks guys..</p>