dynamic page - RegisterForEventValidation can only be called during Render() RSS

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  enableDeepak

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  1069 Points

  247 Posts

  dynamic page - RegisterForEventValidation can only be called during Render()

  Mar 15, 2011 10:23 AM|LINK

  Hi,

  I want to create and render a dunamic page. Something like following:

  System.Web.UI.Page mypage = new System.Web.UI.Page();
              mypage .Controls.Add(new System.Web.UI.HtmlControls.HtmlInputText());
              myTextWriter = new StringWriter();
              myWriter = new HtmlTextWriter(myTextWriter);
              mypage.RenderControl(myWriter);
              HttpResponse.write(myWriter.ToString());

  But at RenderControl line, I get following Error:

  RegisterForEventValidation can only be called during Render()

   

  Is there a way to resolve it? At many forums I found set the EnableEventValidation=false in page directive. But this is a dynamic page and has no directive. Further this property is not available when I browse mypage properties.

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  tiagosalgado

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  Re: dynamic page - RegisterForEventValidation can only be called during Render()

  Mar 15, 2011 10:28 AM|LINK

  Try to add this code:

  public override void VerifyRenderingInServerForm(Control control)
  {
  
  }

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  • Marked as answer by Hua-Jun Li - MSFT on Mar 21, 2011 10:47 AM
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  rory somy

  Member

  12 Points

  7 Posts

  Re: dynamic page - RegisterForEventValidation can only be called during Render()

  Apr 02, 2012 02:24 PM|LINK

  This blocks sending mails :(

  and gets the error :Request for the permission of type 'System.Net.Mail.SmtpPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.