RequiredAttribute Class |
Custom attribute that, when added to a field, property or parameter, throws:
- an ArgumentNullException if the target is assigned a null value;
- an ArgumentOutOfRangeException if the target is assigned an empty or white-space string.
Inheritance HierarchySystem.Object
System.Attribute
PostSharp.Extensibility.MulticastAttribute
PostSharp.Patterns.Contracts.LocationContractAttribute
PostSharp.Patterns.Contracts.RequiredAttribute
System.Attribute
PostSharp.Extensibility.MulticastAttribute
PostSharp.Patterns.Contracts.LocationContractAttribute
PostSharp.Patterns.Contracts.RequiredAttribute
Namespace: PostSharp.Patterns.Contracts
Assembly: PostSharp.Patterns.Common (in PostSharp.Patterns.Common.dll) Version: 6.2.13.0 (6.2.13.0)
SyntaxC#
public sealed class RequiredAttribute : LocationContractAttribute, IAspect
The RequiredAttribute type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | RequiredAttribute |
Initializes a new RequiredAttribute.
|
Properties| Name | Description | |
|---|---|---|
 | 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.) |
| ErrorMessage |
Gets or sets the error message formatting string.
(Inherited from LocationContractAttribute.) |
Methods| Name | Description | |
|---|---|---|
| RuntimeInitialize |
Initializes the aspect at runtime.
(Inherited from LocationContractAttribute.) |
| ValidateValueDynamic |
Validates a weakly-typed (boxed) value, typically the value of a dependency property or an attached property.
(Overrides LocationContractAttribute.ValidateValueDynamic(Object, String, LocationKind, LocationValidationContext).) |
RemarksError message is identified by RequiredErrorMessage.
See Also