Features

ASP.NET 3.5 New Features

Agenda 

What's New in .NET Framework 3.5?



Visual Studio 2008 Enhancements



LINQ (Language Integrated Query)



New ASP.NET Server Controls



ASP.NET 3.5 Extensions 

ASP.NET Dynamic Data ( now in SP1 )



ASP.NET MVC Framework ( now in Beta )



ASP.NET and AJAX Integration



ASP.NET Controls for Silverlight 2

Timeline  



 





November 2005 ASP.NET 2.0 Released along with Visual Studio 2005 (No ASP.NET AJAX) January 2007 ASP.NET AJAX v1.0 released as an add-on to ASP.NET 2.0 (Works with Visual Studio 2005) May 2007 ASP.NET "Futures" a developer preview of some of the features considered for future releases released as a CTP July 2007 ASP.NET "Futures" CTP Updated November 2007 ASP.NET 3.5 and Visual Studio 2008 released (ASP.NET 3.5 contains built-in newer version of ASP.NET AJAX, ListView, DataPager and LinqDataSource controls) December 2007 ASP.NET 3.5 Exensions (CTP Version containing new features for ASP.NET, AJAX and Silverlight) August 2008 .Net 3.5 SP1

3

What’s New in .NET Framework 3.5? 

Language Integrated Queries (LINQ) 

Family of technologies that provides querying features for data, from relational to XML



Generate a LINQ object model that provides an object representation of the database



New collections: HashSet



Peer-to-Peer networking framework



Integration of WCF and WWF (Workflow Services) 4

What’s New in Visual Studio 2008?    

Framework targeting (2.0, 3.0, 3.5) Full support for LINQ and LINQ to SQL Integrated ASP.NET AJAX Improved HTML editor   

 

Split source/design view JavaScript IntelliSense and debugging CSS manager and debugger

Integrated WPF, WCF, WF designers Runs a bit slower

5

Visual Studio 2008 Enhancements

6

LINQ and LINQ to SQL   

Query, set and transform operations for .NET Querying data becomes a core programming concept Works with all types and shapes of data    



Works with all .NET languages 



Relational databases XML Objects … C# and VB and have integrated language support

LINQ to SQL 

Powerful ORM framework

7

Query var contacts = expressions from c in customers where c.State == "WA" Local Expression select new { c.Name, c.Phone }; variable type trees inference

Lambda expressions

Automatic properties

var contacts = Partial customers methods .Where(c => c.State == "WA") .Select(c => new { c.Name, c.Phone }); Extension methods

Anonymous types

Object initializers 8

       

Dim x = 5

Implicitly typed locals <Extension> Extension methods Sub Randomize(col As Collection) Lambda Expressions Function(c) c.Name Object initializers New Point With { .x = 1, .y = Anonymous types 2} Nullable types New With { c.Name, c.Phone Query expressions } If emp.DOB >= Tod XML Literals ay From … Where … Select

9

SqlConnection c = new SqlConnection(…); Queries in c.Open(); quotes SqlCommand cmd = new SqlCommand( @"SELECT c.Name, c.Phone Loosely FROM Customers c bound WHERE c.City = @p0"); arguments cmd.Parameters["@p0"] = "London"; DataReader dr = c.Execute(cmd); Loosely while (dr.Read()) { typed result string name = dr.GetString(0); sets string phone = dr.GetString(1); DateTime date =dr.GetDateTime(2); } dr.Close(); No compile time checks 10

public class Customer { … }

Classes describe data

public class Northwind: DataContext Tables are { like public Table Customers; collections … } Strongly typed connection Northwind db = new Northwind(…); var contacts = Integrated from c in db.Customers query syntax where c.City == "London" select new { c.Name, c.Phone }; Strongly typed results

11

Integrated, native query syntax in C# and VB





Query Operators can be used against any .NET collection (IEnumerable)











IntelliSense and Autocompletion

Built-in examples: Select, Where, GroupBy, Join, etc. Extensibility model supports extending/replacing these

Deferred Query Evaluation Lambda Expressions

using System; using System.Query; using System.Collections.Generic; class app { static void Main() { string[] string[] names names = { = "Burke", { "Allen", "Connor", "Arthur", "Frank", "Bennett" "Everett", }; "Albert", "George", IEnumerable<string> "Harris", "David" ayes }; = names Func<string, .Where(s bool> => s[0] filter == 'A'); = s => s.Length == 5; IEnumerable<string> Func<string, string>expr extract = = s => s; Func<string, foreach (string string> from item s in names project ayes) = s = s.ToUpper(); Console.WriteLine(item); where s.Length == 5 IEnumerable<string> orderby exprs= names names[0] .Where(filter) = "Bob"; select s.ToUpper(); .OrderBy(extract) foreach foreach .Select(project); (string (string item item inin expr) ayes) Console.WriteLine(item); Console.WriteLine(item); } foreach (string item in expr) } Console.WriteLine(item); } Arthur Allen } Arthur BURKE DAVID FRANK 12

LINQ to SQL 

LINQ to SQL Designer in VS 2008

NorthwindDataContext db = new NorthwindDataContext(); var customers = from c in db.Customers where c.City == "London" select c; foreach (var cust in customers) Console.WriteLine( "id = {0}, City = {1}", cust.CustomerID, cust.City);

13











LINQ to Objects API  queries over any .NET collection, such as arrays and generic lists. LINQ over XML (XLinq)  Core functionality of the XLinq API such as load, modify, and save XML documents LINQ to SQL  provides direct access to database tables from the programming environment LINQ to Entities  enables developers to use LINQ over EDM models LINQ to Dataset  allows the full expressivity of LINQ to be used over Datasets.

14

New ASP.NET Data Controls 











15

ListView Control  

Combines templating capabilities of the Repeater control and the data editing capabilities of the DataGrid complete control of how the ListView presents your data through 11 templates.           

  

LayoutTemplate AlternatingItemTemplate EditItemTemplate EmptyDataTemplate EmptyItemTemplate GroupTemplate GroupSeparatorTemplate InsertItemTemplate ItemTemplate ItemSeparatorTemplate SelectedItemTemplate

most important templates are the LayoutTemplate and the ItemTemplate. LayoutTemplate HTML defines the overall look and feel ItemTemplate HTML specifies how each bound record will appear.

16

ListView 

---

17

DataPager  





provides paging capabilities. points at the control it provides paging support for. As an external control place it anywhere on the page, and configure look works with controls that implement the IPageableItemContainer interface ( ListView )

18

DataPager

19

LinqData Source Control 

Bind to a Linq Data Model

20

ASP.NET 3.5 Extensions 

ASP.NET MVC Framework 



ASP.NET Dynamic Data 



Browser history support

ADO.NET Data Services 



Dynamic data controls for displaying/editing table data in ASP.NET

ASP.NET AJAX 



Model View Controller framework for ASP.NET ( now in Beta )

Create REST addressable services endpoints for your data and consume with AJAX and Silverlight

Silverlight Controls for ASP.NET 

Integrate Silverlight into ASP.NET applications

21

ASP.NET Dynamic Data 

Create quickly a rich data-driven Web sites   



 

Like in Ruby on Rails and Django (in Python) Based on LINQ to SQL data model Dynamically display data based on the data model of the underlying database Pages are created automatically (zero code)

Based on highly customizable templates Uses dynamic data fields – user controls that render standard data field types

22

ASP.NET Dynamic Data

23

ASP.NET AJAX 

v1.0



ASP.NET 2.0 VS 2005





v1.0

v3.5

All AJAX 1.0 features in .NET 3.5

Better Development Experience  

ASP.NET 3.5 VS 2008

Enhancements to UpdatePanel WCF JSON Services



JavaScript Intellisense JavaScript Debugging ASP.NET AJAX Extender Control Support

24

ASP.NET AJAX Control Toolkit 

Separate download from core ASP.NET AJAX 





Developed using a collaborative source model 





Library of free ASP.NET AJAX enabled controls Download from http://ajax.asp.net

Licensed under Microsoft Public License (Ms-PL) All source freely available

~ 40 controls as of today

25