Free AJAX Page
Make a callback with data to server and return the results without reloading the page.

Some people call it AJAX now.
We use it since 1998.
Yes... It is a pretty old thing.
For many years we perfected it to a very simple and very powerful control.
It is free for your enjoyment.

Download and use for FREE.
Version 1.8.7.0 released on July 29, 2008
Ready working examples included for both C# and VBNet.

How to run examples

Introducing obout AJAX Page

  • Make a callback with data to server and return the results without reloading page.
  • Send parameters from client to server and from server to client.
    The parameters are keeping their type (bool, int, string, collection).
  • Call server functions from client and client functions from server
    with parameter sending and value returning.
  • Execute client scripts before the server response is retuned to the function
    that initiated the callback, but also client scripts that can be executed after that.
  • CallbackPanel - can be dynamically updated from server without any page reload.
    It can contain anything from html, js, css to complex server controls.
  • Page ViewState is stored for callbacks.
  • Supports any encoding type, so you don't have to convert the strings on your own.
  • IsCallback checks if the call is a callback or not.
  • Any postback originated from AJAX Page panel is done using AJAX without any user interaction.
  • Support for Master Pages.
  • Controls state is updated after AJAX call from within a callback panel.

See also the obout AJAX Page ChangeLog.

AJAX Page
obout.com (a0)
ASP TreeView (a1)
Fast (a2)
Easy (a3)
Links & Notes since 1998 (a4)
MemoBook.com (a5)


Drag and drop nodes in the treeview.

NodeId and new ParentId
are saved on server without reloading page.