Home / Community & Support / Developer Productivity Tools Forums / ASP.NET > Ajax > Client side HTML elems disappear after RadAjax manager make it unvisible

• Ricky Master

  Posted on Nov 20, 2007 (permalink)

  Scenario:
  When users choose  among the options of Radio Buttons, RadAjax Manager conditionally make another Panel Control, containing a label and a drowdownlist, visible/unvisible. This is shown in 
  http://www.sendspace.com/file/lrejjr and
  http://www.sendspace.com/file/0hvte7.
  It goes well of course.
  The problem is that if I make Panel Control unvisible and then click the button to post back (not callback), which is shown in http://www.sendspace.com/file/x55bjs, something goes wrong!
  After the postback, I try to make the Panel visible again by switching the radio buttons(http://www.sendspace.com/file/4vacfs). But a client side error occurs: http://www.sendspace.com/file/o8leyx.
  
  What is the reason? I conjecture this is resulted from my unawareness of details of RadAjax.
  
  Regards,
  Ricky.
  

• Pavel Pavel

  Posted on Nov 21, 2007 (permalink)

  Hi Ricky,
  
  The reason you get this error is that AjaxManager needs the Asp Panel to be always visible in order to work. You can read a more thorough explanation if you follow this link:
  http://www.telerik.com/help/aspnet/ajax/ajaxtogglecontrolvisibility.html
  
  Let me know if you have further questions.
  
  Kind regards,
  Pavel
  the Telerik team

  
  Instantly find answers to your questions at the new Telerik Support Center

• Calvin

  Posted on Jun 2, 2011 (permalink)

  I'm really tired of the incessant 404's.  
  
  1.) Could you repost the new link?
  2.) Whoever redesigned your website needs to add some routing to send old links to the new link locations.
  
  srsly

• Pavel Pavel

  Posted on Jun 3, 2011 (permalink)

  Hi Calvin,
  
  In this particular case it seems the link was created broken. I have updated the previous post and will point to the correct url here as well:
  http://www.telerik.com/help/aspnet/ajax/ajaxtogglecontrolvisibility.html
  
  This is a link to our classic controls' help, which has not been changed.
  
  As for the broken links to our Asp.Net AJAX help to which you probably refer to, we are working on resolving those issues. Thank you for your understanding.
  
  All the best,
  Pavel
  the Telerik team

  Consider using RadControls for ASP.NET AJAX (built on top of the ASP.NET AJAX framework) as a replacement for the Telerik ASP.NET Classic controls, See the product support lifecycle here.

Back to Top

Home / Community & Support / Developer Productivity Tools Forums / ASP.NET > Ajax > Client side HTML elems disappear after RadAjax manager make it unvisible