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Ultimate .NET Credit Card Utility Class

, 29 Aug 2007
A powerfully simple .NET utility class for validating and testing credit card numbers in C# and VB.
UltimateCreditCardUtilityCS_src.zip
CredCardUtilityTestsCS
CreditCardUtilityTests
bin
Debug
CreditCardUtility.dll
CreditCardUtilityTest.dll
nunit.framework.dll
CreditCardUtilityTests.csproj.user
Properties
CreditCardTestSiteCS
Bin
CreditCardUtility.dll
RadAjax.Net2.dll
RadInput.Net2.dll
images
innerBkgnd.png
loading4.gif
pageBkgn.jpg
UltimateCreditCardUtility.gif
CreditCardUtilityCS
bin
Debug
CreditCardUtility.dll
CreditCardUtility.csproj.user
Properties
UltimateCreditCardUtilityVB_src.zip
CreditCardTestSiteVB
Bin
CreditCardUtility.dll
RadAjax.Net2.dll
RadInput.Net2.dll
images
innerBkgnd.png
loading4.gif
pageBkgn.jpg
UltimateCreditCardUtility.gif
CreditCardUtilityTestsVB
CreditCardUtilityTests
bin
Debug
CreditCardUtility.dll
CreditCardUtilityTests.dll
nunit.framework.dll
CreditCardUtilityTests.vbproj.user
My Project
Application.myapp
Settings.settings
CreditCardUtilityVB
CreditCardUtility
bin
Debug
CreditCardUtility.dll
CreditCardUtility.pdb
My Project
Application.myapp
Settings.settings
'------------------------------------------------------------------------------
' <auto-generated>
'     This code was generated by a tool.
'     Runtime Version:2.0.50727.1378
'
'     Changes to this file may cause incorrect behavior and will be lost if
'     the code is regenerated.
' </auto-generated>
'------------------------------------------------------------------------------

Option Strict On
Option Explicit On


Namespace My
    
    <Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "9.0.0.0"),  _
     Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)>  _
    Partial Friend NotInheritable Class MySettings
        Inherits Global.System.Configuration.ApplicationSettingsBase
        
        Private Shared defaultInstance As MySettings = CType(Global.System.Configuration.ApplicationSettingsBase.Synchronized(New MySettings),MySettings)
        
#Region "My.Settings Auto-Save Functionality"
#If _MyType = "WindowsForms" Then
    Private Shared addedHandler As Boolean

    Private Shared addedHandlerLockObject As New Object

    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _
    Private Shared Sub AutoSaveSettings(ByVal sender As Global.System.Object, ByVal e As Global.System.EventArgs)
        If My.Application.SaveMySettingsOnExit Then
            My.Settings.Save()
        End If
    End Sub
#End If
#End Region
        
        Public Shared ReadOnly Property [Default]() As MySettings
            Get
                
#If _MyType = "WindowsForms" Then
               If Not addedHandler Then
                    SyncLock addedHandlerLockObject
                        If Not addedHandler Then
                            AddHandler My.Application.Shutdown, AddressOf AutoSaveSettings
                            addedHandler = True
                        End If
                    End SyncLock
                End If
#End If
                Return defaultInstance
            End Get
        End Property
    End Class
End Namespace

Namespace My
    
    <Global.Microsoft.VisualBasic.HideModuleNameAttribute(),  _
     Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute()>  _
    Friend Module MySettingsProperty
        
        <Global.System.ComponentModel.Design.HelpKeywordAttribute("My.Settings")>  _
        Friend ReadOnly Property Settings() As Global.Bluelaser.Utilities.My.MySettings
            Get
                Return Global.Bluelaser.Utilities.My.MySettings.Default
            End Get
        End Property
    End Module
End Namespace

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

About the Author

BlueLaser05
Web Developer
United States United States
Todd Anglin is an Experts Exchange ASP.NET Master and a Telerik Technical Evangelist responsible for building a strong Telerik community across the globe. Before joining Telerik, Todd worked as a developer in a Fortune 200 financial services company in San Antonio as a Systems Analyst supporting applications on a wide range of platforms and technologies, including Unix, Windows Server, Informix, Oracle, and SQL Server. Todd graduated Magna Cum Laude with Business Honors from Mays Business School at Texas A&M University with a BBA in MIS and now resides with his wife in The Woodlands, Texas.

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