Visual Basic 2005 in a Nutshell, Third Edition

The System Namespace | 103

.NET FCL

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Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.

The System.Array Class

The System.Array class contains useful methods for dealing with arrays. For

instance, it has a Sort method that sorts the elements of an array. The following

block of code uses Array.Sort to order a list of

Integer values.

Public Sub SortArray( )

' ----- Simple array sorting example.

Dim counter As Integer

Dim dataToFix( ) As Integer = {9, 8, 12, 4, 5}

' ----- First, show the world the mixed-up mess.

Console.WriteLine("Unsorted:")

For counter = 0 To 4

Console.WriteLine(CStr(dataToFix(counter)))

Next counter

' ----- Yeah! I don't have to Bubble sort by myself.

Array.Sort(dataToFix)

' ----- Display the correct results.

Console.WriteLine("Sorted:")

For counter = 0 To 4

Console.WriteLine(dataToFix(counter))

Table 7-1. Members of the System.Convert class

Method VB equivalent Description

ToBoolean CBool

Converts a value to Boolean

ToByte CByte

Converts a value to an unsigned 8-bit integer Byte

ToChar CChar

Converts a value to a single character Char

ToDateTime CDate

Converts a value to date or time value DateTime (Date in

Visual Basic)

ToDecimal CDec

Converts a value to a floating point Decimal

ToDouble CDbl

Converts a value to a floating point Double

ToInt16 CShort

Converts a value to a signed 16-bit integer Int16 (Short in

Visual Basic)