Here is the blurb:
Telerik RadControls for ASP.NET AJAX includes more than 60 controls with proven reliability that help you build high-quality, professional line of business web applications. From the leading AJAX data grid to the full-featured HTML editor used by Microsoft on sites like MSDN, you have all the building blocks for maximizing productivity and creating rich, SEO-friendly, high-performance Enterprise web applications.
or what I read this as:
Helps you make business web apps.
Cost is about USD$1000 ish.
After the install it gives you a new menu in VS2008:
Can add a skin..
Having a look at the Examples
c:\Program Files\Telerik\RadControls for ASP.NET AJAX Q1 2010\Live Demos
**Explore the project examples for LinqToSQL and DataGrid
Opened the sln file in VS2010 (it didn’t seem to like vs2008, which is fine – gives an excuse to start playing with 2010!)
compile time took ages! And didn’t work. Nice.
MyBusinessObjectCollection is not defined
Read the Documentation?
If all else fails, read the documentation (installed on the local machine). Same as online.
Looking at tv.telerik.com
RADScheduler – scheduling. Very feature rich!
sln in \code\telerik\scheduler
Trying the courseware:
http://www.telerik.com/support/documentation-and-tutorials/step-by-step-tutorial-for-ajax.aspx
Hmm – broadband going at snails pace here in NZ at night time.. 90mb download.
How I love having lots of memory 
RadMenu, RadToolBar, RadTabStrip
C:\Documents and Settings\dave\My Documents\downloads\RadControlsAJAXCourseware\Courseware_Projects\Navigation\CS
Lots of good examples!

Multipage
RadColorPicker
RadCalendar
Navigation / ServerLocatingItems
RADToolBar, RadPanelBar
Nav / ServerSide
making the navigation on the server dynamically
notice RADAjaxManager.. displays a popup after postback.
ServerSide2
ServerTags
RADTabStrip
Input / Getting Started
Couldn’t find Telerik.Charting.. so commented out in web.config.
RadMaskedText, RadNumericText, RadDateInput
Input / ClientAutoComplete
ie press f then tab, and it completes.
Just javascript on the onChange event.
Input / ClientErrorHandling
Javascript on the client.
RadMaskedTextBox, RadNumericText, RadDateInput.
Input / HowToSpellCheck
didn’t work.. but cool functionality.
Input / HowToValidators
Just using classic asp validators.
Client Side API / Events
EventsWalkThrough
When hover over, it does some js.
JSON
WebService and JSON
sends a date to the webservice, then returns then date with an int of 123.
UI and Information Controls / Getting Started
RADFormDecorator (skin of Hay)
RADToolTipManager

FormDecorator (Forest)
ClientLogin
ClientSide
HowToImageMap
Images came sliding in. They are actually tooltips, being animated within the tooltip.
ServerAJAXUpdate
tooltip updating on ajax?
ServerSide
RadRotator / Getting Started
using an xml data source. RadRotator… which uses XPath statements to get the correct data from the xml.
HowToDetailsTAble
HowToRSS
straight from an xmldatasource.
scrolls automatically.
AJAX / Getting Started
Bottom calendar is using Ajax.
ScriptManager, RadCalendar, RadAjaxLoadingPanel
AJAX Settings
Getting an assembly mismatch
Could not load file or assembly 'Telerik.Web.UI, Version=2008.2.826.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
I changed out the
<!--<add assembly="Telerik.Web.UI, Version=2008.2.826.35, Culture=neutral, PublicKeyToken=121FAE78165BA3D4"/>-->
<add assembly="Telerik.Web.UI" />
and when I do show time it does an ajax call.
Uses Telerik AJAX Manager.
Creates stuff on the fly:
Client API
doing in js.
c# is passing a literal control back to the client.
Client API2
Dynamic Controls 1,2,3,4
user controls (ascx)
then progressivly running more in ajax
then IDynamicControl
ActiveSkill / Getting Started
Getting into it – although pass through authentication / db auth.. causing issues. Made a user called DAVEXPLAPTOP\ASPNET
May have been easier to use network service like above.
Setting up the database for membership:
Pointing the web.config to the correct database (ActiveSkill on sqlexpress)
Setting up the correct roles.
After successfully creating a user, then logging in. I did it again and got:
So, moving on through the examples.!
RealEstate / Getting Started
RadWindowManager
Drag and drop.
Skins / Getting Started
Databinding / Getting Started 1
Database connection string was causing issues.. this worked for me:
<add name="NorthwindConnectionString" connectionString="Data Source=DAVEXPLAPTOP\SQLEXPRESS;AttachDbFilename=C:\NORTHWND.mdf; Database=northwind; Trusted_Connection=Yes" providerName="System.Data.SqlClient" />
Here the SQL is right in the aspx page in the SqlDataSource… ie select blah from Catgories.
Tidied up the database location:
<add name="NorthwindConnectionString" connectionString="Data Source=DAVEXPLAPTOP\SQLEXPRESS;AttachDbFilename=C:\Program Files\telerik\RadControls for ASP.NET AJAX Q1 2010\App_Data\NORTHWND.mdf; Database=northwind; Trusted_Connection=Yes" providerName="System.Data.SqlClient" />
Databinding / Getting Started 2
ToDO!