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Posted 10 May 2011

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using of lambda expression and removing foreach/for loop

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10 May 2011CPOL
lambda expression
I want to show a simple use of Lamda expression in our C# code which remove tedious lines of code,
_entities is a object of Database which has a list of Contact is Contacts I am going to search a contact by a Id which is used as parameter in a function we can find the contact by three way

1. By using foreach/for loop and inside loop we can check if current contact has same id as parameter
2. using LINQ which is written over here as commented.
3. Using LAMDA Exp. which is also written I am going to use in future

public Contact GetContact(int Id)
{
        //return (from c in _entities.Contacts //LINQ
        //        where c.Id == Id
        //        select c).FirstOrDefault();
        return _entities.Contacts.FirstOrDefault(m => m.Id == Id); //Lamda
}

Obviously lambda expression will make life easier. We can use find function and many more using lambda expression...

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Kishore Barik
Software Developer (Senior) Insync Tech-Fin Solutions Ltd.
India India
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Comments and Discussions

 
GeneralIf you were to compare all 4 (for,foreach,LINQ,Lambda) with ... Pin
Groulien10-May-11 22:12
MemberGroulien10-May-11 22:12 

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