UrlAttribute Class

Custom attribute that, when added to a field, property or parameter, throws an ArgumentException if the target is assigned a value that is not a valid URL starting with http://, https:// or ftp://. Null strings are accepted and do not throw an exception.

Inheritance Hierarchy

System.Object
  System.Attribute
    PostSharp.Extensibility.MulticastAttribute
      PostSharp.Patterns.Contracts.LocationContractAttribute
        PostSharp.Patterns.Contracts.RegularExpressionAttribute
          PostSharp.Patterns.Contracts.UrlAttribute

Namespace: PostSharp.Patterns.Contracts
Assembly: PostSharp.Patterns.Common (in PostSharp.Patterns.Common.dll) Version: 2023.0.3.0 (2023.0.3.0)

Syntax

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public sealed class UrlAttribute : RegularExpressionAttribute

The UrlAttribute type exposes the following members.

Constructors

	Name	Description
	UrlAttribute	Initializes a new UrlAttribute.

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 other characteristics 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 attributes of types to which this attribute applies. Visibility, scope (Instance or Static) and generation are the only categories that are taken into account; attributes of other categories are ignored. (Inherited from MulticastAttribute.)
	AttributeTargetTypes	Gets or sets the expression specifying to which types this instance applies. (Inherited from MulticastAttribute.)
	ErrorMessage	Obsolete. 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. (Inherited from RegularExpressionAttribute.)

Remarks

Error message is identified by UrlErrorMessage.

Reference

PostSharp.Patterns.Contracts Namespace