title: How to compare local file with shelf file
body: <p>I have shelved my file, test.cpp and continued working on it. Now I would like to see what additional changes I've made to test.cpp since I made my shelf.</p>
  
  <p>Let's say that after I checked out test.cpp, Bob checked into tfs an update to test.cpp.</p>
  
  <p>Let's make some nomenclature to help:</p>
  
  <ul>
  <li><code>source_version</code>: the original version I checked out and started working from</li>
  <li><code>latest_version</code>: the test.cpp Bob checked into tfs, the latest version after I started working on test.cpp.</li>
  <li><code>shelf_version</code>: the test.cpp in my shelf, a modification of <code>source_version</code>, lacking Bob's addtions (i.e. not merged).</li>
  <li><code>local_version</code>: the test.cpp that I have on my local disk "local_version", that started from <code>source_version</code>, and has addtional work beyond <code>shelf_version</code>.</li>
  </ul>
  
  <p>Using this set of labels my question reworded would be:
  How do I compare <code>local_version</code> with <code>shelf_version</code>.</p>
  
  <p>My options:</p>
  
  <p>In <code>Pending Changes</code> pane, I can</p>
  
  <ul>
  <li><p>Compare with Workspace Version
  This is wrong, this compares <code>local_version</code> with <code>source_version</code></p></li>
  <li><p>Compare with Latest Version
  This is wrong, this compares <code>local_version</code> with <code>latest_version</code></p></li>
  </ul>
  
  <p>In 'Shelveset Details' pane view of the my shelf</p>
  
  <ul>
  <li><p>Compare with Unmodified Version
  This is wrong, this appears to be the same as comparing <code>shelf_version</code> with <code>source_version</code>. Which is odd, this function is already handled in the next compare</p></li>
  <li><p>Compare with Workspace Version
  This is wrong, this compares <code>shelf_version</code> with <code>source_version</code>.</p></li>
  <li><p>Compare with Latest Version
  This is wrong, this compares <code>shelf_version</code> with <code>latest_version</code>.</p></li>
  </ul>
  
  <p>Thanks</p>