Find a specific value within a generic list with a Lambda Expression using C#

With the release of C# 3.0 came Lambda Expressions. In a previous post I searched a generic list using a delegate, this is because, perhaps, I have done so much programming with C# 2.0 that it’s just a habit now. Time to move onto better, newer things, like Lambda Expressions.

In the previous example I used these 2 lines of code to search for a specific value within a generic list. One list, contains a list of a class and the other is a list of strings.

Currency result = 
       FindItClass.Find(delegate(Currency cur) 
            { return cur.Code == searchFor; });
 
string stringResult =
       FindIt.Find(delegate(string str) 
            { return str == searchFor; });

To achieve the same thing using a Lambda Expression is shown below.

Currency result = FindItClass.Find(r => r.Code == searchFor);
string stringResult = FindIt.Find(r => r == searchFor);

Using a Lambda Expression in this example requires less code. Since the results are the same, it is always good practice to write as little code as required to meet the objectives.

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2 Comments

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  1. very use full

  2. nice artical

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