title: Expression to hide tablix in ssrs
body: <p>I wish to set the visibility for the tablix based upon the value selected in parameter. </p>
  
  <p>The scenario is I have four tablix week, month, quarter, year. I have created a parameter "timeline" and in the parameter i have added week month quarter year as specified values in available values option</p>
  
  <p>I have used the following queries but i cant hide those tablix if I select corresponding value from the timeline parameter (Even if I select or deselect any value in the parameter all the four tablix are displaying) </p>
  
  <p><strong>=IIF(Parameters!Timeline.Value = "Month",TRUE,FALSE)</strong>
  <strong>=IIF(Parameters!TimeLine.Label.Equals("Year"),True,False)</strong></p>
  
  <p>What expression would fix this issue?</p>
  
  <p><a href="https://i.stack.imgur.com/SKKSz.png" rel="nofollow noreferrer">Here is the screenshot of the Report screen</a></p>