Array.SetValue Method (Object, Int64[])
Assembly: mscorlib (in mscorlib.dll)
/** @attribute ComVisibleAttribute(false) */ public void SetValue ( Object value, long[] indices )
ComVisibleAttribute(false) public function SetValue ( value : Object, ... indices : long[] )
Not applicable.
Parameters
- value
The new value for the specified element.
- indices
A one-dimensional array of 64-bit integers that represent the indexes specifying the position of the element to set.
| Exception type | Condition |
|---|---|
| indices is a null reference (Nothing in Visual Basic). | |
| The number of dimensions in the current Array is not equal to the number of elements in indices. | |
| value cannot be cast to the element type of the current Array. | |
| Any element in indices is outside the range of valid indexes for the corresponding dimension of the current Array. |
The number of elements in indices must equal the number of dimensions in the Array. All elements in the indices array must collectively specify the position of the desired element in the multidimensional Array.
The GetLowerBound and GetUpperBound methods can determine whether any of the values in the indices array is out of bounds.
For more information about conversions, see Convert.
This method is an O(1) operation.
 Note: |
|---|
| If SetValue is used to assign a null reference (Nothing in Visual Basic) to an element of an array of value types, all fields of the element are initialized to zero. The value of the element is not a null reference, and cannot be found by searching for a null reference. |
The following code example demonstrates how to set and get a specific value in a one-dimensional or multidimensional array.
using System; public class SamplesArray { public static void Main() { // Creates and initializes a one-dimensional array. String[] myArr1 = new String[5]; // Sets the element at index 3. myArr1.SetValue( "three", 3 ); Console.WriteLine( "[3]: {0}", myArr1.GetValue( 3 ) ); // 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 ); Console.WriteLine( "[1,3]: {0}", myArr2.GetValue( 1, 3 ) ); // 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 ); Console.WriteLine( "[1,2,3]: {0}", myArr3.GetValue( 1, 2, 3 ) ); // 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 ); Console.WriteLine( "[1,2,3,0,1,2,3]: {0}", myArr7.GetValue( myIndices ) ); } } /* 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 */
import System.*;
public class SamplesArray
{
public static void main(String[] args)
{
// Creates and initializes a one-dimensional array.
String myArr1[] = new String[5];
// Sets the element at index 3.
myArr1.SetValue("three", 3);
Console.WriteLine("[3]: {0}", myArr1.GetValue(3));
// 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);
Console.WriteLine("[1,3]: {0}", myArr2.GetValue(1, 3));
// 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);
Console.WriteLine("[1,2,3]: {0}", myArr3.GetValue(1, 2, 3));
// 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[] = { 1, 2, 3, 0, 1, 2, 3 };
myArr7.SetValue("one-two-three-zero-one-two-three", myIndices);
Console.WriteLine("[1,2,3,0,1,2,3]: {0}", myArr7.GetValue(myIndices));
} //main
} //SamplesArray
/*
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
*/
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.