Specifies the LicenseProvider to use with a class. This class cannot be inherited.
<AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple := False, Inherited := False)> _ Public NotInheritable Class LicenseProviderAttribute _ Inherits Attribute
Dim instance As LicenseProviderAttribute
[AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple = false, Inherited = false)] public sealed class LicenseProviderAttribute : Attribute
[AttributeUsageAttribute(AttributeTargets::Class, AllowMultiple = false, Inherited = false)] public ref class LicenseProviderAttribute sealed : public Attribute
public final class LicenseProviderAttribute extends Attribute
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.
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
[LicenseProvider(typeof(LicFileLicenseProvider))] public class MyControl : Control { // Insert code here. protected override void Dispose(bool disposing) { /* All components must dispose of the licenses they grant. * Insert code here to dispose of the license. */ } }
[LicenseProvider(LicFileLicenseProvider::typeid)] ref class MyControl: public Control { protected: // Insert code here. ~MyControl() { /* All components must dispose of the licenses they grant. * Insert code here to dispose of the license. */ } };
public LicenseProvider(LicFileLicenseProvider) class MyControl extends Control{ // Insert code here. function Dispose(){ // All components must dispose of the licenses they grant. // Insert code here to dispose of the license. } //Dispose } //MyControl
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
public static int Main() { // Creates a new component. MyControl myNewControl = new MyControl(); // Gets the attributes for the component. AttributeCollection attributes = TypeDescriptor.GetAttributes(myNewControl); /* Prints the name of the license provider by retrieving the LicenseProviderAttribute * from the AttributeCollection. */ LicenseProviderAttribute myAttribute = (LicenseProviderAttribute)attributes[typeof(LicenseProviderAttribute)]; Console.WriteLine("The license provider for this class is: " + myAttribute.LicenseProvider.ToString()); return 0; }
int main() { // Creates a new component. MyControl^ myNewControl = gcnew MyControl; // Gets the attributes for the component. AttributeCollection^ attributes = TypeDescriptor::GetAttributes( myNewControl ); /* Prints the name of the license provider by retrieving the LicenseProviderAttribute * from the AttributeCollection. */ LicenseProviderAttribute^ myAttribute = dynamic_cast<LicenseProviderAttribute^>(attributes[ LicenseProviderAttribute::typeid ]); Console::WriteLine( "The license provider for this class is: {0}", myAttribute->LicenseProvider ); return 0; }
// Creates a new component. var myNewControl : MyControl = new MyControl() // Gets the attributes for the component. var attributes : AttributeCollection = TypeDescriptor.GetAttributes(myNewControl) // Prints the name of the license provider by retrieving the LicenseProviderAttribute // from the AttributeCollection. var myAttribute : LicenseProviderAttribute = LicenseProviderAttribute(attributes(LicenseProviderAttribute)) Console.WriteLine("The license provider for this class is: " + myAttribute.LicenseProvider.ToString())
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