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Array.GetLongLength Method

Gets a 64-bit integer that represents the number of elements in the specified dimension of the Array.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

[ComVisibleAttribute(false)]
public long GetLongLength(
	int dimension
)

Parameters

dimension
Type: System.Int32

A zero-based dimension of the Array whose length needs to be determined.

Return Value

Type: System.Int64
A 64-bit integer that represents the number of elements in the specified dimension.

ExceptionCondition
IndexOutOfRangeException

dimension is less than zero.

-or-

dimension is equal to or greater than Rank.

An example of GetLongLength is GetLongLength(0), which returns the number of elements in the first dimension of the Array.

This method is an O(1) operation.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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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