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Using foreach with Arrays (C# Programming Guide)

Visual Studio 2010

C# also provides the foreach statement. This statement provides a simple, clean way to iterate through the elements of an array. For example, the following code creates an array called numbers and iterates through it with the foreach statement:

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int[] numbers = { 4, 5, 6, 1, 2, 3, -2, -1, 0 };
foreach (int i in numbers)
{
    System.Console.Write("{0} ", i);
}
// Output: 4 5 6 1 2 3 -2 -1 0

With multidimensional arrays, you can use the same method to iterate through the elements, for example:

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int[,] numbers2D = new int[3, 2] { { 9, 99 }, { 3, 33 }, { 5, 55 } };
// Or use the short form:
// int[,] numbers2D = { { 9, 99 }, { 3, 33 }, { 5, 55 } };

foreach (int i in numbers2D)
{
    System.Console.Write("{0} ", i);
}
// Output: 9 99 3 33 5 55

However, with multidimensional arrays, using a nested for loop gives you more control over the array elements.

Reference

Arrays (C# Programming Guide)

Single-Dimensional Arrays (C# Programming Guide)

Multidimensional Arrays (C# Programming Guide)

Jagged Arrays (C# Programming Guide)

Array

Concepts

C# Programming Guide

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