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ValidationOptionAttribute Class

Custom attribute that contains ValidationOption information. This class cannot be inherited.


Namespace:  System.Workflow.ComponentModel.Compiler
Assembly:  System.Workflow.ComponentModel (in System.Workflow.ComponentModel.dll)

[AttributeUsageAttribute(AttributeTargets.Property|AttributeTargets.Event, AllowMultiple = false, 
	Inherited = true)]
public sealed class ValidationOptionAttribute : Attribute

The ValidationOptionAttribute type exposes the following members.

Public methodValidationOptionAttributeInitializes a new instance of the ValidationOptionAttribute class, with a value for ValidationOption.

Public propertyTypeIdWhen implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.)
Public propertyValidationOptionGets the value of the System.Workflow.ComponentModel.Compiler.ValidationOption associated with this instance.

Public methodEqualsInfrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeReturns the hash code for this instance. (Inherited from Attribute.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodIsDefaultAttributeWhen overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute.)
Public methodMatchWhen overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)

Explicit interface implemetationPrivate method_Attribute.GetIDsOfNamesMaps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.GetTypeInfoRetrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.GetTypeInfoCountRetrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.InvokeProvides access to properties and methods exposed by an object. (Inherited from Attribute.)

This attribute should only be used as dependency property option. Attributes are ignored if declared on a .NET property.

The ValidationOptionAttribute is intended to be used on Meta-properties only. It will be ignored for instance properties. For more information, see Using Activity Properties for more details.

If the ValidationOptionAttribute is not specified, the behavior defaults to ValidationOption.Optional.

public sealed partial class Activity1: Activity
    public Activity1()

    public static DependencyProperty MyPropertyProperty = 
            new PropertyMetadata(
                new ValidationOptionAttribute(ValidationOption.Required)));

    public string MyProperty
            return ((string)(base.GetValue(Activity1.MyPropertyProperty)));
            base.SetValue(Activity1.MyPropertyProperty, value);

.NET Framework

Supported in: 4, 3.5, 3.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.