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Information.IsArray Method

Returns a Boolean value indicating whether a variable points to an array.

Namespace:  Microsoft.VisualBasic
Assembly:  Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)

public static bool IsArray(
	Object VarName
)

Parameters

VarName
Type: System.Object

Required. Object variable.

Return Value

Type: System.Boolean
Returns a Boolean value indicating whether a variable points to an array.

IsArray returns True if the variable points to an array; otherwise, it returns False. IsArray is especially useful with objects that might contain arrays.

This example uses the IsArray function to check if several variables refer to an array.

Dim firstArray(4), secondArray(3) As Integer 
Dim thisString As String = "Test" 
Dim arrayCheck As Boolean
arrayCheck = IsArray(firstArray)
arrayCheck = IsArray(secondArray)
arrayCheck = IsArray(thisString)
' The first two calls to IsArray return True; the third returns False.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.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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