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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
Assemblies:   System.Core (in System.Core.dll)
  System.Linq.Expressions (in System.Linq.Expressions.dll)

static member ArrayLength : 
        array:Expression -> 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 a null reference (Nothing in Visual Basic).

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 a null reference (Nothing in Visual Basic), and both IsLifted and IsLiftedToNull are set to false.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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