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Expression.ArrayLength Method

Creates a UnaryExpression that represents an expression for obtaining the length of a one-dimensional array.

Namespace:  System.Linq.Expressions
Assembly:  System.Core (in System.Core.dll)

'Declaration
Public Shared Function ArrayLength ( _
	array As Expression _
) As UnaryExpression

Parameters

array
Type: System.Linq.Expressions.Expression

An Expression to set the Operand property equal to.

Return Value

Type: System.Linq.Expressions.UnaryExpression
A UnaryExpression that has the NodeType property equal to ArrayLength and the Operand property equal to array.

ExceptionCondition
ArgumentNullException

array is Nothing.

ArgumentException

array.Type does not represent an array type.

The Type property of array must represent an array type.

The Type property of the resulting UnaryExpression is equal to Int32. The Method property is Nothing, and both IsLifted and IsLiftedToNull are set to false.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.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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