title: Measure lacking context
body: <p>I am struggling to force the measure <code>CountTopPromos</code> to be contextual.<br>
  Currently it is calculating a count of <em>all</em> the tuples in <code>TopX</code>. Against the version of AdWrks that I am running this is 14.</p>
  
  <p>How do I force a context, of the current year, onto the measure <code>CountTopPromos</code></p>
  
  <pre><code>WITH 
    SET FullSet AS 
      NonEmpty
      (
          [Date].[Calendar].[Calendar Year].MEMBERS
        * 
          [Promotion].[Promotion].MEMBERS
       ,[Measures].[Reseller Order Count]
      ) 
    SET TopX AS 
      Generate
      (
        [Date].[Calendar].[Calendar Year].MEMBERS
       ,TopPercent
        (
            [Date].[Calendar].CurrentMember
          * 
            Extract
            (
              FullSet
             ,[Promotion].[Promotion]
            )
         ,90
         ,[Measures].[Reseller Order Count]
        )
      ) 
    MEMBER [Measures].[CountTopPromos] AS 
      Count(TopX)                  //&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt; CONTEXT LACKING HERE  &lt;&lt;&lt;&lt;&lt;&lt;&lt;
  SELECT 
    NON EMPTY 
      {[Measures].[CountTopPromos]} ON 0
   ,{TopX} ON 1
  FROM [Adventure Works];
  </code></pre>
  
  <p>Currently it returns the following:</p>
  
  <p><img src="https://i.stack.imgur.com/5QJj5.png" alt="enter image description here"></p>
  
  <p>I'd like CountTopPromos to be in the context of the year so the desired output is as follows:</p>
  
  <p><img src="https://i.stack.imgur.com/EVHMC.png" alt="enter image description here"></p>