LicenseProviderAttribute Clase

Definición

public ref class LicenseProviderAttribute sealed : Attribute

[System.AttributeUsage(System.AttributeTargets.Class, AllowMultiple=false, Inherited=false)]
public sealed class LicenseProviderAttribute : Attribute

[<System.AttributeUsage(System.AttributeTargets.Class, AllowMultiple=false, Inherited=false)>]
type LicenseProviderAttribute = class
    inherit Attribute

Public NotInheritable Class LicenseProviderAttribute
Inherits Attribute

Herencia

Object

Attribute

LicenseProviderAttribute

Atributos

AttributeUsageAttribute

Ejemplos

En el ejemplo de código siguiente se usa LicFileLicenseProvider como proveedor de licencias para MyControl.

[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. */
   }
};

[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(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

En el ejemplo de código siguiente se crea una instancia de la MyControl clase . A continuación, obtiene los atributos de la clase e imprime el nombre del proveedor de licencias usado por myNewControl.

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;
}

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;
 }

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

Comentarios

Al crear un componente al que desea obtener una licencia, debe especificar el LicenseProvider marcando el componente con un LicenseProviderAttribute.

Utilice la LicenseProvider propiedad para obtener el Type de .LicenseProvider

Para obtener más información sobre atributos, vea Atributos. Para obtener más información sobre las licencias, vea How to: License Components and Controls.

Constructores

Campos

Propiedades

Métodos

Implementaciones de interfaz explícitas

Se aplica a

Consulte también

• License
• LicenseContext
• LicenseException
• LicenseManager
• LicenseProvider
• LicFileLicenseProvider
• LicenseUsageMode