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C#

select clause


In a query expression, the select clause specifies the type of values that will be produced when the query is executed. The result is based on the evaluation of all the previous clauses and on any expressions in the select clause itself. A query expression must terminate with either a select clause or a group clause. The following example shows a simple select clause in a query expression.

Syntax:
var result = array.Select(condition);


Example:

using System;
using System.Linq;

class Program
{
    static void Main()
    {
	// An input data array.
	string[] array = { "cat", "dog", "mouse" };

	// Apply a transformation lambda expression to each element.
	// ... The Select method changes each element in the result.
	var result = array.Select(element => element.ToUpper());

	// Display the result.
	foreach (string value in result)
	{
	    Console.WriteLine(value);
	}
    }
}

Output

CAT
DOG


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