LicenseProviderAttribute Class
Specifies the LicenseProvider to use with a class. This class cannot be inherited.
Assembly: System (in System.dll)
When you create a component that you want to license, you must specify the LicenseProvider by marking the component with a LicenseProviderAttribute.
Use the LicenseProvider property to get the Type of the LicenseProvider.
For more information about attributes, see Attributes Overview and Extending Metadata Using Attributes. For more information about licensing, see How to: License Components and Controls.
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The HostProtectionAttribute attribute applied to this class 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. |
The following code example uses the LicFileLicenseProvider as the license provider for MyControl.
<LicenseProvider(GetType(LicFileLicenseProvider))> _ Public Class MyControl Inherits Control ' Insert code here. Protected Overrides Sub Dispose(ByVal disposing As Boolean) ' All components must dispose of the licenses they grant. ' Insert code here to dispose of the license. End Sub End Class
The next code example creates an instance of the MyControl class. Then, it gets the attributes for the class, and prints the name of the license provider used by myNewControl.
Public Shared Function Main() As Integer ' Creates a new component. Dim myNewControl As New MyControl() ' Gets the attributes for the component. Dim attributes As AttributeCollection = TypeDescriptor.GetAttributes(myNewControl) ' Prints the name of the license provider by retrieving the LicenseProviderAttribute ' from the AttributeCollection. Dim myAttribute As LicenseProviderAttribute = _ CType(attributes(GetType(LicenseProviderAttribute)), LicenseProviderAttribute) Console.WriteLine(("The license provider for this class is: " & _ myAttribute.LicenseProvider.ToString())) Return 0 End Function
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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