title: Get all the test run details executed against test plan id
body: <p>Is there a way I can get the test runs executed against a test plan id 
  programmatically ? Also i want to get the results for say last 30 day or last X days?</p>
  
  <p>To get the test case results for a particular test run, I am using below query,
  <em><code>var results = proj.TestResults.Query(string.Format("SELECT * FROM TestResult WHERE TestRunId =" + testRunId + ""));</code></em> </p>