title: Report if one value is null don't show other value
body: <p>I'm trying to build a report with asp.net report. </p>
  
  <p>If you check this image: </p>
  
  <p><img src="https://i.stack.imgur.com/nLmq3.png" alt="enter image description here"></p>
  
  <p>I'm showing a table with tickets and charge. The charge column has these value: </p>
  
  <pre><code>=Fields!Charge.Value
  </code></pre>
  
  <p>What I want to achieve is only to show the charge value if the ticket value is not null. So as you see in the image, there are 4 tickets visible and I want to show the charge only for those four tickets not all the charges. </p>
  
  <p>Any idea how we can achieve that? </p>