ASP.NET 3.5 New Features

1. ASP.NET 3.5 New Features

2. 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

3. Timeline • November 2005ASP.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 2007ASP.NET "Futures" a developer preview of some of the features considered for future releases released as a CTP • July 2007ASP.NET "Futures" CTP Updated • November 2007ASP.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 2007ASP.NET 3.5 Exensions (CTP Version containing new features for ASP.NET, AJAX and Silverlight) • August 2008 .Net 3.5 SP1

4. 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<T> • Peer-to-Peer networking framework • Integration of WCF and WWF (Workflow Services)

5. 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

6. Visual Studio 2008 Enhancements

7. 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 • Relational databases • XML • Objects • … • Works with all .NET languages • C# and VB and have integrated language support • LINQ to SQL • Powerful ORM framework

8. C# 3.0 Language Innovations Query expressions var contacts = from c in customers where c.State == "WA" select new { c.Name, c.Phone }; Expression trees Local variable type inference Automatic properties Lambda expressions var contacts = customers .Where(c => c.State == "WA") .Select(c => new { c.Name, c.Phone }); Partial methods Extension methods Anonymous types Object initializers

9. LanguageEnhancements Implicitly typed locals Extension methods Lambda Expressions Object initializers Anonymous types Nullable types Query expressions XML Literals Dim x = 5 <Extension> Sub Randomize(col As Collection) Function(c) c.Name New Point With { .x = 1, .y = 2 } New With { c.Name, c.Phone } If emp.DOB >= Today From … Where … Select

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

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

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 and more LINQ - -Summary 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 • <asp:ListView> • <asp:DataPager> • <asp:LinqDataSource>

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 • <asp:ListView ID="ListView2" runat="server" DataSourceID="MyDataSource"> <LayoutTemplate> <asp:PlaceHolder ID="itemPlaceholder" runat="server"> </asp:PlaceHolder> </LayoutTemplate> <ItemTemplate> <asp:Label ID="Company" runat="server" Text='<%# Eval("CompanyName") %>' /> <br /> <asp:Label ID="CityLabel" runat="server" Text='<%# Eval("City") %>' /> <hr /> </ItemTemplate> </asp: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 • Model View Controller framework for ASP.NET ( now in Beta ) • ASP.NET Dynamic Data • Dynamic data controls for displaying/editing table data in ASP.NET • ASP.NET AJAX • Browser history support • ADO.NET Data Services • 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 • All AJAX 1.0 features in .NET 3.5 • Enhancements to UpdatePanel • WCF JSON Services • Better Development Experience • JavaScript Intellisense • JavaScript Debugging • ASP.NET AJAX Extender Control Support ASP.NET 2.0 VS 2005 v1.0 ASP.NET 3.5 VS 2008 v3.5 v1.0

24. ASP.NET AJAX Control Toolkit • Separate download from core ASP.NET AJAX • Library of free ASP.NET AJAX enabled controls • Download from http://ajax.asp.net • Developed using a collaborative source model • Licensed under Microsoft Public License (Ms-PL) • All source freely available • ~ 40 controls as of today