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Array.SetValue Method (Object, Int32)

Sets a value to the element 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)
member SetValue : 
        value:Object * 
        index:int -> unit

Parameters

value
Type: System.Object

The new value for the specified element.

index
Type: System.Int32

A 32-bit integer that represents the position of the Array element to set.

ExceptionCondition
ArgumentException

The current Array does not have exactly one dimension.

InvalidCastException

value cannot be cast to the element type of the current Array.

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.

For more information about conversions, see Convert.

This method is an O(1) operation.

NoteNote

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.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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