Tanzim Saqib presents on development tools, and features for ASP.NET developers.

1. Development in ASP.NETWebForms, LINQ, Dynamic Data TanzimSaqib www.TanzimSaqib.com SaaS Developer Software as-a Service (SaaS) Platform British Telecom

2. Session Summary WebForms LINQ Dynamic Data Futures – ASP.NET 4

3. What is ASP.NET Technology for web application development Provides you with rich APIs and services Robust, scalable, fast development experience Great flexibility, less coding Seamless integration with Microsoft stack tools Not an upgrade from ASP the next generation ASP

4. WebForms UI elements that make up the Look & Feel of your application Also known as just Page. Code behind brings UI and code separation Default.aspx Default.aspx.cs Advanced features reduce code i.e. Data binding Rich Drag & Drop design experience

5. WebForms (contd.) Support for multiple languages C#, VB, C++ and so on Similar to Windows Forms programming model Events, Properties, Methods Extensibility Third party assemblies and controls runat=“server” Compiled at server-side Accessible by server code

6. ASP.NET Controls or Web Controls

7. Most Commonly Used WebControls

8. ASP.NET Ecosystem

9. Page Life Cycle Events Events in green are the most frequently used

10. Page Life Cycle Events (contd.) For more information: http://bit.ly/aspnetevents

11. WebForms Feature Highlights Themes and skins Master pages Membership, Profile and Role Manager API Application Services for AJAX applications Website administration Wide range choices for caching Levels: Application, Session, Cache, Cookie, Page, Portion of Page Handling errors

12. WebForms Feature Highlights (contd.) ViewState Technique to persist changes to state of a WebForm across postbacks Stores in a hidden input field __VIEWSTATE Encrypted Increase length of the page, hence slows down You can turn on/off

13. Cozying up with ASP.NET Development demo Building a complete data driven site

14. Groundbreaking innovation LINQ Language INtegrated Query

15. Language INtegrated Query - LINQ Pronouced as “Link” A language construct Strongly typed query against objects Full intellisense support Can be used with any collection of objects that implements IEnumerable<T> Highly extensible LINQ to XML LINQ to SQL LINQ to Flickr! etc.

16. LINQ Benefits Simply put - avoiding having to learn and master many different domain languages, development or debugging environments in order to retrieve and manipulate data from different sources One language to query all. Deferred Execution Process queries only when foreach/ToList() is being called. Parallel Extensions help LINQ queries run in multiple processor cores in ASP.NET 4

17. Querying objects demo

18. Obtaining data source Query Expression Syntax: varallProducts = from p in products select p; Extension Method: No representation. productsis the collection of objects

19. Filtering Query Expression Syntax: varlowOnProducts = from p in products where p.UnitsInStock < 10 select p; Extension Method: products.Where(p => p.UnitsInStock < 10);

20. Ordering Query Expression Syntax: varlowOnProducts = from p in products where p.UnitsInStock < 10 orderbyp.Name ascending select p; Extension Method: products.Where(p => p.UnitsInStock < 10) .OrderBy(p => p.Name);

21. Ordering (contd.) Other helpful Extension Methods: OrderBy OrderByDescending ThenBy ThenByDescending

22. Grouping string[] partNumbers = new string[] { "SCW10", "SCW1", "SCW2", "SCW11", "NUT10", "NUT1", "NUT2"}; Query Expression Syntax: var query = from pN in partNumbers group pN by pN.Substring(0,3); Extension Method: var query = partNumbers .GroupBy(pN => pN.Substring(0,3)); foreach (var group in q) { Console.WriteLine("Group key: {0}", group.Key); foreach (var part in group) { Console.WriteLine(" - {0}", part); } } varlowOnProducts = from p in products where p.UnitsInStock < 10 orderbyp.Name ascending select p; products.Where(p => p.UnitsInStock < 10) .OrderBy(p => p.Name);

23. Grouping (contd.) Iterating through grouped data: foreach (var group in query) { Console.WriteLine("Group key: {0}", group.Key); foreach (var part in group) { Console.WriteLine(" - {0}", part); } }

24. Standard Query Operators

25. Standard Query Operators (contd.)

26. Querying and modifying data demo LINQ DataContext

27. LINQ Query Provider Roll your own provider: YouTubeContextcontext = new YouTubeContext(); var query = (from v in context.Videos where v.Location == " Moghbazar " && v.SearchText == “Rail Crash" select v).IfNotViewedBy(“TanzimSaqib”); Building LINQ Provider series: http://bit.ly/LINQSeries

28. Life easier with Dynamic Data

29. Dynamic Data Overview Build powerful data driven sites in a minute! Automatic creation of WebForms Controls and data binding Validation logic in place Metadata inferred from schema Easy and highly customizable Time saver and reusable

30. Building a website in less than a minute! demo

31. Field Templates Fields are User Controls Dynamically chosen by datatype Responsible for Data binding Validation and Rendering Reusable

32. Customizing Fields demo

33. Customizing Pages Page Templates Changes affect all pages Custom pages for individual tables Custom columns and rendering

34. Customizing Pages demo

35. Routing Standard URL: http://yourcompany.com/Products/Edit.aspx Extensionless clean URL: http://yourcompany.com/Products/Edit No necessity to move files around Routing engine is being used by Dynamic Data ASP.NET MVC Attend the next session for deep dive into Routing and ASP.NET MVC

36. Routing demo

37. Future is now ASP.NET 4 Beta 1

38. Futures - ASP.NET 4 Support for meta tags Page.Keywords, Page.Description Enabling ViewState for individual controls ViewStateMode property of the control Reading route values at Page level: Page.RouteData.Values[“param_name_here"] Reading route values from markup: <%$ RouteValue:param_name_here %> More precise and predictable ClientIDs

39. Futures - ASP.NET 4 (contd.) QueryExtender New server control Works with LinqDataSource and EntityDataSource More control over what is coming from Database Controls for nested use with QueryExtender SearchExpression RangeExpression PropertyExpression CustomExpression

40. Futures - ASP.NET 4 (contd.) Web.config transformation: Development settings: web.debug.config Production settings: web.release.config Dynamic Data New field template for URL, Email addresses Client Template and Live data binding Enables binding data source to HTML elements Implemented with Observer pattern Data changes from/to UI to/from Database notified

41. Futures - ASP.NET 4 (contd.) Example <script type="text/javascript"> vardataContext = new Sys.Data.DataContext(); dataContext.set_serviceUri("emplyeeService.svc"); dataContext.initialize(); </script> <ul sys:attach="dataview" class="sys-template " dataview:autofetch="true" dataview:dataprovider="{{ dataContext }}" dataview:fetchoperation="GetEmployeeList"> <li> <h3>{binding Name}</h3> <div>{binding Address}</div> </li> </ul>

42. Futures - ASP.NET 4 (contd.) Many more. For more information: http://bit.ly/aspnet4

43. Links and downloads: http://www.TanzimSaqib.com Q & A

44. Thank you