Expression.ArrayLength Method (Expression)

 

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)

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.

Exception Condition
ArgumentNullException

array is null.

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 null, and both IsLifted and IsLiftedToNull are set to false.

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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