private void PurgeRun()
{
  //Purge runs from open test sets that did not pass
  ITestSetFactory tsFact;
  IRunFactory runFact;
  ITDFilter tsFilter, runFilter;
  IList oList;
  int keepLast, dateUnit, unitCnt;
  bool stepsOnly;

  //Set filter for open test sets.
  tsFact = (TestSetFactory)tdConnection.TestSetFactory;
  tsFilter = tsFact.Filter;
  tsFilter["CY_STATUS"] = "Open";

  //Set filter for runs that did not pass.
  runFact = (RunFactory)tdConnection.RunFactory;
  runFilter = runFact.Filter;
  runFilter["RN_STATUS"] = "Not Completed";//"Not Passed";

  keepLast = 0; //Keep none
  dateUnit = 1; //Days
  unitCnt = 0;  //0 days indicates runs from today and back
  stepsOnly = false; // Purge runs, not just steps

  tdConnection.PurgeRuns2(tsFilter.Text, runFilter.Text, keepLast, dateUnit, unitCnt, stepsOnly);
}