title: Looking for Struct Keys in Session
body: <p>I am trying to write a session helper and facing to problem to test if a Struct key in session exists?</p>
  
  <p>I am trying like</p>
  
  <pre><code>&lt;cffunction name="Exists" access="public" output="false" returntype="boolean" &gt;
      &lt;cfargument name="Key" required="true" type="Any" /&gt;
      &lt;cfreturn Evaluate( "StructKeyExists( Session, #Arguments.Key# )" ) /&gt;
  &lt;/cffunction&gt;
  </code></pre>
  
  <p>Where I am calling the function like</p>
  
  <pre><code>&lt;cfif Exists("data.fromdate") &gt;
   ...
  &lt;/cfif&gt;
  </code></pre>
  
  <p>How should I write it?</p>
  
  <p>Thanks</p>