C# 3’s lambda etc..... Do I really need this

[bryce]

explain then to us :) Bryce

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[keozcigisoft]

ROFL! Absolutely :laugh:

[keozcigisoft]

It's C# 4.0 already and you are asking what has become an everyday tool :S

[msusur]

Yeah you need to! As Dario said, it should have only 10 minutes to learn it. If you had start learning it instead of asking here you have already learnt it.

[Adriaan Davel]

Pete O'Hanlon wrote:

Productivity is for wimps after all.

Spoken like a true Klingon

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[thedavejay]

Yes, Lambda is important to learn. From what I have seen, people are starting to move more towards functional programming. Its also important to learn to utilize the generic delegates Action<> and Func<>, anonymous methods using lambda expressions (all important parts to functional programming).

[ScottM1]

keencomputer wrote:

Keen Computer Solutions

You don't seem that keen. ;P

[Gary Wheeler]

It puts the lotion on its skin or it gets the hose again...

Software Zen: delete this;

[duwkes]

First off, great article. Secondly, I've been avoiding lambda expressions because my boss hates unnecessary complexity. Funny thing is that we've been adding complexity by using delegates! With such a concise article, I think it will be much easier to get him to realize that they are a good thing. Thanks again!

[vettbird]

What's wrong with using the query language instead of Lambda?

[rscjeff]

Yes - you'll find that they make your life easier when trying to implement predicate methods. In addition, if you ever inherit code that makes use of lambda expressions, wouldn't you want to at least have some semblance of familiarity? The better question is, do you *have* to know this? Answer is no. Lambda expressions are there to help, not replace.

[J Dunlap]

Awesome - glad I could help!

[tec goblin]

They are short, efficient, clear, and named after a Greek letter :P. What else do you need to love them? :-D

[tec goblin]

You can't use the query language everywhere you could use a Lamda. You can for example create a method that takes a Func as an argument, but is not based on an IQueryable. then you can call the method as this DoSomething(s=>s.Trim()); and later DoSomething(s=>Regex.Replace(s,aPattern,string.Empty); I also prefer to use lamdas instead of queries when I have trivial operations like:

var s = Subscribers.Where(s=>s.Id == 3);

While I would use a query form for something more complex (for readability), like:

var results = from r in context.SearchDatabase(category, name)
join s in Subscribers on r.Subscriber equals s.Id
select s;

[CalvinHobbies]

I can see this getting bleeted to death like a dead donkey.

///////////////// Groucho Marx Those are my principals, if you don't like them… I have others.