CacheDependency.DependencyDispose Método

Definición

Espacio de nombres:

System.Web.Caching

Ensamblado:

System.Web.dll

Libera los recursos utilizados por la clase CacheDependency y cualquier clase que derive de CacheDependency.

protected:
 virtual void DependencyDispose();

protected virtual void DependencyDispose ();

abstract member DependencyDispose : unit -> unit
override this.DependencyDispose : unit -> unit

Protected Overridable Sub DependencyDispose ()

Ejemplos

En el ejemplo de código siguiente se muestra una clase que hereda de la CacheDependency clase e invalida el DependencyDispose método . Cuando se llama a este método, establece una propiedad booleana personalizada denominada Disposedtrueen .

' Declare the class.
Public Class CustomCacheDependency 
   Inherits CacheDependency

     ' Constructor with no arguments 
     ' provided by CacheDependency class.
     Public Sub New()
     End Sub
   
     ' Declare a Boolean field named disposedValue.
     ' This will be used by Disposed property.
     Private disposedValue As Boolean                
     
     ' Create accessors for the Disposed property.
     Public Property Disposed As Boolean
       Get
           Return disposedValue
       End Get
       Set (ByVal value As Boolean)
           disposedValue = value
       End Set
     End Property
     
     ' Create a public method that sets the latest
     ' changed time of the CustomCacheDependency
     ' and notifies the underlying CacheDependency that the 
     ' dependency has changed, even though the HasChanged
     ' property is false.
     Public Sub ResetDependency()
        If Me.HasChanged = False              
           SetUtcLastModified(DateTime.MinValue)
           NotifyDependencyChanged(Me, EventArgs.Empty)
        End If
     End Sub
     
     ' Overrides the DependencyDispose method to set the
     ' Disposed proerty to true. This method automatically
     ' notifies the underlying CacheDependency object to 
     ' release any resources associated with this class. 
     Protected Overrides Sub DependencyDispose()
        Disposed = True
     End Sub
     
     
 End Class

Comentarios

Cualquier clase que derive de la CacheDependency clase es necesaria para implementar este método para limpiar los recursos que ha usado la clase derivada.

Consulte también

• Cache
• Insert(String, Object, CacheDependency)
• Almacenamiento en caché de datos de la aplicación