How to pass Lambda expression as a parameter when you see (Func <string, bool> predicate) – sample

You might see the intellisense pop-up like the one below.



What is (Func<string, bool> predicate)?? It requires a Lambda expression.


The code below shows how to pass in a Lambda expression as an argument if required. 


staticvoid Main(string[] args)   


  List<String> lstString = newList<string> { “Programming”, “Testing”, “Research”, “Design”, “Interface” };


  //Pull out all the elements is the list

  var AllItems = from a in lstString select a;

  //Select the string start with the letter P

  var Selected = AllItems.Where(Item => Item[0] == ‘P’);





About chanmingman

Since March 2011 Microsoft Live Spaces migrated to Wordpress ( till now, I have is over 1 million viewers. This blog is about more than 50% telling you how to resolve error messages, especial for Microsoft products. The blog also has a lot of guidance teaching you how to get stated certain Microsoft technologies. The blog also uses as a help to keep my memory. The blog is never meant to give people consulting services or silver bullet solutions. It is a contribution to the community. Thanks for your support over the years. Ming Man is Microsoft MVP since year 2006. He is a software development manager for a multinational company. With 25 years of experience in the IT field, he has developed system using Clipper, COBOL, VB5, VB6, VB.NET, Java and C #. He has been using Visual Studio (.NET) since the Beta back in year 2000. He and the team have developed many projects using .NET platform such as SCM, and HR based applications. He is familiar with the N-Tier design of business application and is also an expert with database experience in MS SQL, Oracle and AS 400.
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