title: Type mismatch: '[string: ""]'
body: <p>I receive the following error when there is no value for querystring. (I mean like index.asp?ID=).</p>
  
  <p>Microsoft VBScript runtime  error '800a000d'</p>
  
  <p>Type mismatch: '[string: ""]'</p>
  
  <p>index.asp, line 10 </p>
  
  <p>I tried converting NULL value to something else with the following code. It did not work.</p>
  
  <pre><code>MEMBERID        = Request.QueryString("ID")
  
  If MEMBERID = "" or MEMBERID = 0 Then
      MEMBERID = Session("MEMBERID")
  End If
  </code></pre>