title: Doors DXL filter ,
body: <p>I have the following snip of dxl code, 
  I would like to copy the object ID with the filter F3 is on. :
  I dont know what I am doing wrong it gives me (ID) of all the object. </p>
  
  <pre><code>string Id
  int x=0;
  int y=0;
  Id = o."SourceID"
  
  Filter f0 = hasNoLinks(linkFilterIncoming, "*")
  Filter f1=attribute "_TraceTo" == "System"
  Filter f2 = attribute "Object Type" == "requirement" 
  Filter f3 = f1&amp;&amp;f2&amp;&amp;f0
  addFilter(m,f3,x,y)
  print x ":\t" fullName(module(m)) "\n" 
  wOutKLHUntraced &lt;&lt; Id "\t" fullName(module(m)) "\n"
  </code></pre>