title: Show or Hide SSRS column based on specific parameter value
body: <p>I am having trouble showing/hiding a column based on parameter value chosen.</p>
  
  <p>How my report is set up:
  Parameter:  ImportStatus  --ImportStatus parameter has three values you can choose from: M, V, E</p>
  
  <p>If I choose ImportStatus value = 'M', then I want the report to display a specific column.</p>
  
  <p>Currently, if I go to Column Visibility screen of a column I want to show/hide, I am able to hide column for all values instead of specific.  Any idea how to do this correctly?</p>
  
  <p>My expression:</p>
  
  <pre><code>=IIF(Parameters!ImportStatus.Value = "M",true,false)
  </code></pre>