This is from my presentation @ 7:30 AM on August 14th at SQL Saturday 28 in Baton Rouge, LA.

1. #28 Baton ROuge .NET Fundamentals Mike Huguet

2. Solutions Architect for BRDNUG leader, http://brdnug.org MS Patterns & Practices SP Guidance Advisor SQLSat28 Organizer http://twitter.com/mhuguet http://geekswithblogs.com/mikehuguet Mike Huguet

3. A.K.A – “Huggy” Bear What does he do anyway? Favorite restaurant is any $5 Chinese Buffet He only quotes movies from the 80’s Alternate Intro

4. Introduce some of the “new” fundamentals Enhance knowledge of these fundamentals Objectives Face.Expression!=

6. Lambdas

8. ? Generics “Generics let you tailor a method, class, structure, or interface to the precise data type it acts upon.” - MSDN

9. Generics - MSDN

10. Native to the CLR Allow for better type safety increasing performance (no box, unbox, casting) ArrayList vs. List<T> IDE Magic What are Generics?

11. *200% perf gain value types (i.e.-string, int…) *100% perf gain ref types (i.e.-MyClass) Used throughout .NET Make great containers i.e.-List<T> Activator.CreateInstance<T>() Uses / Benefits * - #’s from MSDN

12. C# List<string> x = new List<string>(); String GetValueAsString<T>(T entity) {} VB.NET Dim x As New List(Of String) Function GetValueAsString(of T)(ByRef entity As T) As String Syntax

13. Demo

16. ? Extension Methods “Extension methods enable you to ‘add’ methods to existing types without creating a new derived type, recompiling, or otherwise modifying the original type.” -MSDN

17. Allows adding methods to an existing type No recompile needed Can extend framework classes (including sealed) Methods included in Intellisense Extension Methods

18. Demo

19. ? Lamda Expressions “A lambda expression is an anonymous function that can contain expressions and statements, and can be used to create delegates or expression tree types.” -MSDN

21. A variable that points to function

22. Anonymous function (no name)

23. Returns a single value

24. Explicit or inferred types

25. Return

26. Parameter(s)What is a Lambda Anyway?

28. Arg list => expression

29. x => x + 1

30. (x, y) => x == y

31. VB.NET

32. Function(x) x + 1

33. Function(x, y) x = ySyntax Examples

34. Summary - Wherever a delegate type can be used Event handlers LINQ Projection Extensions (Select, SelectMany) Find Extensions (Find, FindAll) When Can We Use Them?

35. Demo

36. ? Language Integrated Query (LINQ) “LINQ is a set of extensions to the .NET Framework that encompass language-integrated query, set, and transform operations. .” -MSDN

37. Core functionality provided by extension methods (method based) Any() Where() OrderBy() ThenBy() Contains() Join() First() ... LINQ

38. Expression based var results = from process in Process.GetProcesses() where process.ProcessName.Contains("WINWORD") orderbyprocess.MainWindowTitle descending select process; Method based varresults = Process.GetProcesses() .Where(process=>process.ProcessName .Contains("WINWORD")) .OrderBy(x=>x.MainWindowTitle); LINQ Options

39. Demo

40. LINQ C# VB Other Languages .NET Language – Integrated Query LINQ enabled data sources LINQ enabled ADO.NET LINQ to Objects LINQ to XML LINQ to Datasets LINQ to SQL LINQ to Entities Objects Relational Data XML

41. LINQ to … LINQ to Objects LINQ to XML (XLINQ) LINQ to DataSets LINQ to SQL (DLINQ) LINQ to Entities (EF) LINQ to SharePoint LINQ to REST LINQ to NHibernate LINQ to Twitter LINQ to SQL Saturday???

43. LINQ

46. mike.huguet@sparkhound.com