title: passing array via query string
body: <p>I am passing a javascript array via <code>Request.QueryString["cityID"].ToString()</code>, but it shows me an error of  "invalid arguments":</p>
  
  <pre><code>blObj.addOfficeOnlyDiffrent(Request.QueryString["cityID"].ToString(),
                              Request.QueryString["selectTxtOfficeAr"].ToString());
  </code></pre>
  
  <p>The method declaration looks like:</p>
  
  <pre><code>public string addOfficeOnlyDiffrent(string[] cityID, string selectTxtOfficeAr) { }
  </code></pre>