Invalid post back when button type is Button in datapager
<p>I'm having a listview and datapager inside an update panel. The button type is set as button. Now the problem is that when I click the Next / Previous buttons I get the following error.</p>

<blockquote>
  <p>Microsoft JScript runtime error:
  Sys.WebForms.PageRequestManagerServerErrorException: Invalid postback
  or callback argument.  Event validation is enabled using  in configuration or &lt;%@ Page
  EnableEventValidation="true" %> in a page.  For security purposes,
  this feature verifies that arguments to postback or callback events
  originate from the server control that originally rendered them.  If
  the data is valid and expected, use the
  ClientScriptManager.RegisterForEventValidation method in order to
  register the postback or callback data for validation.</p>
</blockquote>

<p>I did some googling and found that I need to set EventValidation as false. But when I do this I get a blank page.</p>

<p>Kindly let me know what needs to be done.</p>

<p>Thanks in advance.</p>
