Introduction presentation for colleagues about what's new in the .NET 4 release

1. VS2010 & .NET 4.0 Capgemini BAS / CapgeminiTechnology ServicesMicrosoft Professionals Meet & Greet29 september 2009

2. Agenda 2

3. Wat is nieuw in 4.0? 3 Data Services ASP.NET Workflow Foundation Entity Framework WPF Communication Foundation LINQ to SQL WinForms “Velocity” ADO.NET Core LINQ MEF Parallel Extensions Languages DLR Base Class Library .NET CLR

4. Framework Verbeteringen: WF/WCF 4

5. Wat is nieuw in C# 4.0 5

6. Optional parameters 6

7. Namedarguments 7

8. GenericVariance Co-variance (specific to generic): List<string> strings = new List<string>(); strings.Add( "hello" ); strings.Add( "goodbye" ); List<object> objects = new List<object>(); objects.AddRange( strings ); Contra-variance (generic to specific) Action<Student> submitLetter = (Person p) => { SendMailTo(p.HomeAddress); }; 8

9. Dynamicobjects object obj = tdse.GetObject(tcmUri, EnumOpenMode.OpenModeView, null, XMLReadFilter.XMLReadAll ); stringtitle = null; if (objisComponent) { Componentcomponent = (Component) obj; title = component.Title; } … elseif (objisPage) { Pagepage = (Page) obj; title = page.Title; }Display(title); dynamictridionItem = tdse.GetObject(tcmUri, EnumOpenMode.OpenModeView); stringtitle = tridionItem.Title; Display(title); 9

10. Dynamicobjects 10

11. DynamicObjects Demo

12. Parallel Extensions 12

14. helper methods to create/work with Tasks

16. Parallel Extensions Dit kan ook met PLINQ: var q = from p in people.AsParallel() where p.Name == queryInfo.Name && p.State == queryInfo.State && p.Year >= yearStart && p.Year <= yearEnd orderbyp.Year ascending select p; 15

17. Parallel Extensions Demo

18. Visual Studio 2010 17

20. Write test first

22. Full code coverage

23. Cleaner codeN Refactor Re-test

24. TDD met VS2010 Demo

26. Changed codeVisual Studio Team System 20

27. Remarks Info uit deze presentatie is gebaseerd op Beta1 van .NET 4.0 en VS2010!

28. Niels Vrolijk: niels.vrolijk@capgemini.com Klaas Depenbrock: klaas.depenbrock@capgemini.com 22