LicenseProvider Class
Provides the abstract base class for implementing a license provider.
Assembly: System (in System.dll)
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The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: SharedState. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes. |
When you inherit from LicenseProvider, you must override the GetLicense method.
See LicFileLicenseProvider for an implementation of this class. For more information on licensing, see How to: License Components and Controls.
The following code example creates a licensed control using the Validate method. It uses a LicenseProvider that is implemented by the LicFileLicenseProvider class.
Imports System Imports System.ComponentModel Imports System.Windows.Forms ' Adds the LicenseProviderAttribute to the control. <LicenseProvider(GetType(LicFileLicenseProvider))> _ Public Class MyControl Inherits Control ' Creates a new, null license. Private license As License = Nothing Public Sub New() ' Adds Validate to the control's constructor. license = LicenseManager.Validate(GetType(MyControl), Me) ' Insert code to perform other instance creation tasks here. End Sub Protected Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then If (license IsNot Nothing) Then license.Dispose() license = Nothing End If End If End Sub End Class
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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