System.Array.GetLength Method

Gets a 32-bit integer that represents the number of elements in the specified dimension of the Array.

Syntax

public int GetLength (int dimension)

Parameters

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

Returns

A 32-bit integer that represents the number of elements in the specified dimension.

Exceptions

TypeReason
IndexOutOfRangeException

dimension is less than zero.

-or-

dimension is equal to or greater than Array.Rank.

Remarks

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

This method is an O(1) operation.

Requirements

Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0, 4.0.0.0