Visual Studio 2008 provides support for multi-targeting applications, occasionally connected systems, Office applications, client applications, Windows Communication Foundation, ASP.NET web applications, and C# 3.0 and LINQ. It also includes ADO.NET Sync Services, support for WPF, WCF, and LINQ in applications. New features in Visual Studio 2008 improve developer productivity and the development of Windows, web, database, and .NET applications.

1. Visual Studio 2008

2. Agenda Multitargetting Occasionally connected Systems Office Applications Client Applications Windows Communication Foundation ASP.NET Web Applications C# 3.0 and LINQ

3. Release History

4. Multitargetting No longer a hard link between Visual Studio and the application’s target framework VS 2008

5. Sync Framework & Services Connected Single data source Database driven Hard coded Monolithic & rigid Occasionally connected Multiple data sources Information based Model driven SOA

6. ADO.NET Sync Services Client App Sync Services No active connection to the database required Data is persisted using SQL Server Everywhere Edition Local Change Tracking for Sending Updates When Connected VS2008 Developer Productivity “ Pay to Play”, RAD Component Architecture Leveraging Developers ADO.NET Knowledge Auto Creation of Database and Table Schema SQL Server Everywhere Edition SQL Server

7. { ADO.NET Sync Services }

8. Office Applications (VSTO)

9. Ribbon Customization New Look and Feel for Office UI Replaces Command Bars in “the big 5” Office apps VSTO Ribbon Designer Tab Group Control Ribbon

10. Custom Task & Actions Panes VSTO simplifies and speeds up task pane UI design process with visual designers and .NET hookup Actions Pane More robust, easier to program alternative to Office’s built-in “Smart Document” technology Custom Task Pane The same general idea as Actions Pane, only on the application add-in level, not individual doc

11. Outlook Form Region Features New technology in Outlook 2007 for enhancing and replacing Outlook’s built-in forms Code behind form region is implemented as COM add-in New controls provide built-in look & feel and data binding to Outlook data

12. { Office Applications }

13. Client Applications

14. { WPF Support in VS2008 }

15. WF and WCF

16. ASP.NET Web Applications

17. { WCF Support in VS2008, ASP.NET Applications }

18. Language Features in VS 2008 Most are LINQ enablers VB9 C# 3 Collection Initialisers Partial Methods Automatic Properties Extension Methods Object Initialisers Anonymous Types Local Type Inference Lambda expressions If Ternary Operator Nullable Syntax Lambda statements

19. C# 3.0: Local Variable Type Inference Local variable type inference is a feature in C# 3.0 where you can use the var keyword instead of explicitly specifying the type of a variable. The C# 3.0 compiler makes the type of the variable match the type of the right side of the assignment. public void Foo() { var i = 5; var s = "Hello" ; var d = 1.0; var z; // compiler error, no initializer z = DateTime .Today; }

20. C# 3.0: Object Initializers public class Point { private int x, y; public int X { get { return x; } set { x = value ; } } public int Y { get { return y; } set { y = value ; } } } Point a = new Point { X = 0, Y = 1 }; Point a = new Point (); a.X = 0; a.Y = 1; Field or property assignments

21. C# 3.0: Anonymous Types Different anonymous object initializers that define properties with same names in the same order generate the same anonymous type var emp = new { Name = "Fons" , Salary = 2000, DateTime .Today.Year }; var year = emp.Year; class XXX { public string Name { get ; set ; } public int Salary { get ; set ; } public int Year { get ; set ; } }

22. C# 3.0: Extension Methods Extend existing types with additional methods. namespace MyStuff { public static class Util { public static bool IsWeekend( this DateTime value) { return (value.DayOfWeek == DayOfWeek .Sunday || value.DayOfWeek == DayOfWeek .Saturday); } } } using MyStuff; Brings extensions into scope dt.IsWeekend()  MyStuff.Util.IsWeekend(dt) DateTime dt = DateTime .Today; bool b = dt.IsWeekend();

23. C# 3.0: Lambda Expressions delegate string SomeDelegate ( string s); private static string TestMethod1( string s) { return s.ToUpper(); } ... SomeDelegate d1 = new SomeDelegate (TestMethod1); string a = d1( "abcde" ); SomeDelegate d3 = delegate ( string s) { return s.ToUpper(); }; string a = d3( "abcde" ); SomeDelegate d4 = s => s.ToUpper(); string a = d4( "abcde" ); SomeDelegate d2 = TestMethod1; string a = d2( "abcde" ); Delegate Inference Anonymous Method Lambda Expression OO Function- Pointer C# 1.x C# 2.0 C# 2.0 C# 3.0

24. { C# 3.0 }

25. Language INtegrated Query? Lots of code written today in order to loop, filter, sort, group, etc. Why not build better support for this? sort loop sum

26. Why Have LINQ? Access to common data like XML or SQL is harder than accessing in memory objects; Why not have better API’s than this? hope! pray! hope!

27. Language Integrated Query from data in someDataSource join otherData in someOtherSource on keyExpr equals keyExpr (into itemName )? let someVariable = someExpression where somePredicate orderby ( expression (ascending | descending)?)* select expression group expression by keyExpression into itemName .NET Framework V3.5 Language Features ( C# V3 and VB V9 ) Custom Objects XML SQL

28. How Does LINQ Work? Implementations already present in the .NET Framework for those cases Compiler rewrites as method calls No need to implement Select() etc. if myData is either IEnumerable IQueryable

29. IEnumerable & IQueryable? IEnumerable – query is executed in memory Execute Execute where select where select Parse & Execute IQueryable – query is parsed then translated to SQL and finally executed on to the database

30. LINQ to SQL from c in db.Customers where c.City == &quot;London&quot; select c.CompanyName; IQueryable<T> SELECT CompanyName FROM Customer WHERE City = 'London' SQL Query or SProc Resultset Objects db.Customers.InsertOnSubmit(c1); c2.City = &quot;Asten&quot; ; db.Customers.DeleteOnSubmit(c3); SubmitChanges() INSERT INTO Customer … UPDATE Customer … DELETE FROM Customer … DML or SProcs Application LINQ to SQL SQL Server

31. { LINQ to Objects, LINQ to SQL }

32. Summary Visual Studio 2008 Great for Windows Vista Development Great for Client Development Great for Web Development Great for Database Applications Development Great for .NET Framework v3.5 Service Pack 1 will add even more features ADO.NET Entity Framework ADO.NET Data Services ASP.NET Dynamic Data

33. Resources http://msdn.microsoft.com/en-us/vstudio http://msdn.microsoft.com/en-us/sync http://msdn.microsoft.com/en-us/office http://windowsclient.net http://netfx3.com/content/WCFHome.aspx http://www.asp.net http://msdn.microsoft.com/en-us/vcsharp http://www.datadeveloper.net Visual Studio 2008 Upgrade Training http://www.reflectionit.nl/Training/default.aspx#orcas