title: An unhandled exception was generated during the execution of the current web request
body: <p>Below is my code</p>
  
  <p><a href="http://imageshack.us/a/img812/7017/98qq.jpg" rel="nofollow noreferrer">IMG http://imageshack.us/a/img812/7017/98qq.jpg</a></p>
  
  <p>When I click on Submit button in my page, I have to get dropdownlist values and I have to send it to another page.</p>
  
  <p>I have followed following <a href="https://stackoverflow.com/questions/13817170/pass-value-from-dropdownlist-to-other-aspx-page-using-post-method"> link</a>! for that</p>
  
  <p>When I try to run my code I am getting error as</p>
  
  <pre><code>An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
  </code></pre>
  
  <p>Stack trace:</p>
  
  <p><a href="http://imageshack.us/a/img534/9554/opdu.jpg" rel="nofollow noreferrer">IMG http://imageshack.us/a/img534/9554/opdu.jpg</a></p>
  
  <p>Can someone please tell me what is the error</p>