item data bound only run against showing page."be careful with that"
a lot of people want to use aggregates.
-calc fields: best use of database resources. not denormalized.
-calc fields sq footage example. Codeless. use expression builder.
-specified cast is not valid. what does linq have to do with footer aggregates?  see it in 3.5 version of assemblies.  EnableLinqExpression = true. some records contain DBNull values. "If you want to use linq expressions, go for it" or eat exception.
-Descend from generic list. Grid likes to bind to IEnumerable
-web service, show service, method, soap envelope.
-why drop .js file? don't need to re-download. ServiceReference = ...Does register to scriptmanager prevent new download?
- "Do magic" in your radgrid. 
-pageLoad() gotcha. If there is no ClientSettings / ClientEvents, pageLoad will not fire.
-public static [WebMethod]: makes available to javascript automatically.
-easily serialized by jsonserializer (IEnumerable)
-start and stop loading panel, all on the client. No round trips to server.
-PageMethods call web methods. (params, success method)
-get_filterExpressions().toString() overloaded to a "where" clause
-68 different commands. RadGrid_Command() is catch all 
-not as robust as code-behind on server, but benefit will run in other browsers, performant. must really scream. until there is a checkbox "make it really fast".
-needing to cache in session. consume in web service and pass to client.
-"make it as if the application is running locally on your machine". No difference between local and remote host. Windows, not web performance is the yardstick.
-[WebMethod] ->> PageMethod
-"Telerik will not be able to write this code for you, you will have to decide ..."
-Create LINQ data 10-12 minutes, 1 million records to exercise the data access speed. Will not show much of a difference with 100,000 records. Filter for param1 = 4. Took 2 sec on 3.5, 10 secs + using old assemblies. 
Linq = less than second.

-dragged demo data to dbml surface to create objects automatically.
-before you had to embed a user control, now can use templates. 
-Anders Heilsberg (if he creates a new Pepsi cola, that's what I'll be drinking). 
-Linq is not just for databases. vs Table adapter - less verbose (less than 1/3 code).
-Linq with Oracle: provider needs to be created. Recently opened up for development. Oracle is working on this.
-Linq taken over by the data team. 
-Linq performance, example 9 & 10
-2008, Q2, SP1, with 3.5 dlls
-security concerns. It can be sniffed. Injection to sql