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Array.GetValue Method (Int32)

Gets the value at the specified position in the one-dimensional Array. The index is specified as a 32-bit integer.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

[SecuritySafeCriticalAttribute]
public Object GetValue(
	int index
)

Parameters

index
Type: System.Int32
A 32-bit integer that represents the position of the Array element to get.

Return Value

Type: System.Object
The value at the specified position in the one-dimensional Array.

ExceptionCondition
ArgumentException

The current Array does not have exactly one dimension.

IndexOutOfRangeException

index is outside the range of valid indexes for the current Array.

The GetLowerBound and GetUpperBound methods can determine whether the value of index is out of bounds.

This method is an O(1) operation.

The following code example demonstrates how to set and get a specific value in a one-dimensional or multidimensional array.


using System;

public class Example
{

   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {

      // Creates and initializes a one-dimensional array.
      String[] myArr1 = new String[5];

      // Sets the element at index 3.
      myArr1.SetValue("three", 3);
      outputBlock.Text += String.Format("[3]:   {0}", myArr1.GetValue(3)) + "\n";


      // Creates and initializes a two-dimensional array.
      String[,] myArr2 = new String[5, 5];

      // Sets the element at index 1,3.
      myArr2.SetValue("one-three", 1, 3);
      outputBlock.Text += String.Format("[1,3]:   {0}", myArr2.GetValue(1, 3)) + "\n";


      // Creates and initializes a three-dimensional array.
      String[, ,] myArr3 = new String[5, 5, 5];

      // Sets the element at index 1,2,3.
      myArr3.SetValue("one-two-three", 1, 2, 3);
      outputBlock.Text += String.Format("[1,2,3]:   {0}", myArr3.GetValue(1, 2, 3)) + "\n";


      // Creates and initializes a seven-dimensional array.
      String[, , , , , ,] myArr7 = new String[5, 5, 5, 5, 5, 5, 5];

      // Sets the element at index 1,2,3,0,1,2,3.
      int[] myIndices = new int[7] { 1, 2, 3, 0, 1, 2, 3 };
      myArr7.SetValue("one-two-three-zero-one-two-three", myIndices);
      outputBlock.Text += String.Format("[1,2,3,0,1,2,3]:   {0}", myArr7.GetValue(myIndices)) + "\n";

   }

}


/* 
This code produces the following output.

[3]:   three
[1,3]:   one-three
[1,2,3]:   one-two-three
[1,2,3,0,1,2,3]:   one-two-three-zero-one-two-three

*/



Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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