WeakEventAttribute Class |
Aspect that, when applied to an event, prevents the target event from holding a strong reference to event handlers.
Therefore, the aspect prevents the event to prevent clients to be garbage collected.
Inheritance HierarchySystem.Object
System.Attribute
PostSharp.Extensibility.MulticastAttribute
PostSharp.Aspects.Aspect
PostSharp.Aspects.EventLevelAspect
PostSharp.Aspects.EventInterceptionAspect
PostSharp.Patterns.Model.WeakEventAttribute
System.Attribute
PostSharp.Extensibility.MulticastAttribute
PostSharp.Aspects.Aspect
PostSharp.Aspects.EventLevelAspect
PostSharp.Aspects.EventInterceptionAspect
PostSharp.Patterns.Model.WeakEventAttribute
Namespace: PostSharp.Patterns.Model
Assembly: PostSharp.Patterns.Model (in PostSharp.Patterns.Model.dll) Version: 5.0.55.0 (5.0.55.0)
SyntaxC#
public sealed class WeakEventAttribute : EventInterceptionAspect, IInstanceScopedAspect, IAspect
The WeakEventAttribute type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | WeakEventAttribute | Initializes a new instance of the WeakEventAttribute class |
Properties| Name | Description | |
|---|---|---|
 | AspectPriority |
Gets or sets the weaving priority of the aspect.
(Inherited from Aspect.) |
| AttributeExclude |
If true, indicates that this attribute removes all other instances of the
same attribute type from the set of elements defined by the current instance.
(Inherited from MulticastAttribute.) |
| AttributeInheritance |
Determines whether this attribute is inherited
(Inherited from MulticastAttribute.) |
| AttributePriority |
Gets or sets the priority of the current attribute in case that multiple
instances are defined on the same element (lower values are processed before).
(Inherited from MulticastAttribute.) |
| AttributeReplace |
Determines whether this attribute replaces other attributes found on the
target declarations.
(Inherited from MulticastAttribute.) |
| AttributeTargetAssemblies |
Gets or sets the assemblies to which the current attribute apply.
(Inherited from MulticastAttribute.) |
| AttributeTargetElements |
Gets or sets the kind of elements to which this custom attributes applies.
(Inherited from MulticastAttribute.) |
| AttributeTargetExternalMemberAttributes |
Gets or sets the visibilities, scopes, virtualities, and implementation
of members to which this attribute applies, when the member is external to the current module.
(Inherited from MulticastAttribute.) |
| AttributeTargetExternalTypeAttributes |
Gets or sets the visibilities of types to which this attribute applies,
when this type is external to the current module.
(Inherited from MulticastAttribute.) |
| AttributeTargetMemberAttributes |
Gets or sets the visibilities, scopes, virtualities, and implementation
of members to which this attribute applies.
(Inherited from MulticastAttribute.) |
| AttributeTargetMembers |
Gets or sets the expression specifying to which members
this instance applies.
(Inherited from MulticastAttribute.) |
| AttributeTargetParameterAttributes |
Gets or sets the passing style (by value, out or ref)
of parameters to which this attribute applies.
(Inherited from MulticastAttribute.) |
| AttributeTargetParameters |
Gets or sets the expression specifying to which parameters
this instance applies.
(Inherited from MulticastAttribute.) |
| AttributeTargetTypeAttributes |
Gets or sets the visibilities of types to which this attribute applies.
(Inherited from MulticastAttribute.) |
| AttributeTargetTypes |
Gets or sets the expression specifying to which types
this instance applies.
(Inherited from MulticastAttribute.) |
Methods| Name | Description | |
|---|---|---|
| CompileTimeInitialize |
Method invoked at build time to initialize the instance fields of the current aspect. This method is invoked
before any other build-time method.
(Inherited from EventLevelAspect.) |
| CompileTimeValidate(Object) |
Method invoked at build time to ensure that the aspect has been applied to the right target.
(Inherited from EventLevelAspect.) |
| CompileTimeValidate(EventInfo) |
Method invoked at build time to ensure that the aspect has been applied to the right target.
(Inherited from EventLevelAspect.) |
| GetAspectConfiguration |
Method invoked at build tome to get the imperative configuration of the current Aspect.
(Inherited from Aspect.) |
| RuntimeInitialize |
Initializes the current aspect.
(Inherited from EventLevelAspect.) |
Extension Methods| Name | Description | |
|---|---|---|
 | QueryInterface<T> |
Gets the implementation of a specified interface for the specified object.
(Defined by QueryInterfaceExtensions.) |
RemarksEvent clients do not need to keep a strong reference to the delegates passed to a weak event. The WeakEventAttribute implementation will keep delegate instances alive as long as the event source (i.e. whatever object the Target property points to) is alive, but no longer.
See Also