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IsArray Function (Visual Basic) 

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

Public Function IsArray(ByVal VarName As Object) As Boolean

Parameters

  • VarName
    Required. Object variable.

Remarks

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

Example

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.

Requirements

Namespace: Microsoft.VisualBasic

Module: Information

Assembly: Visual Basic Runtime Library (in Microsoft.VisualBasic.dll)

See Also

Tasks

How to: Declare an Array Variable

Reference

IsDate Function (Visual Basic)
IsDBNull Function
IsError Function
IsNothing Function
IsNumeric Function (Visual Basic)
IsReference Function
Object Data Type
TypeName Function (Visual Basic)