ValidationOptionAttribute Class

Reference

Definition

Namespace:: System.Workflow.ComponentModel.Compiler

Assembly:: System.Workflow.ComponentModel.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Caution

The System.Workflow.* types are deprecated. Instead, please use the new types from System.Activities.*

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

public ref class ValidationOptionAttribute sealed : Attribute

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

[System.AttributeUsage(System.AttributeTargets.Event | System.AttributeTargets.Property, AllowMultiple=false, Inherited=true)]
[System.Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
public sealed class ValidationOptionAttribute : Attribute

[<System.AttributeUsage(System.AttributeTargets.Event | System.AttributeTargets.Property, AllowMultiple=false, Inherited=true)>]
type ValidationOptionAttribute = class
    inherit Attribute

[<System.AttributeUsage(System.AttributeTargets.Event | System.AttributeTargets.Property, AllowMultiple=false, Inherited=true)>]
[<System.Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")>]
type ValidationOptionAttribute = class
    inherit Attribute

Public NotInheritable Class ValidationOptionAttribute
Inherits Attribute

Inheritance: Object

Attribute
ValidationOptionAttribute

Attributes: AttributeUsageAttribute ObsoleteAttribute

Remarks

Note

This material discusses types and namespaces that are obsolete. For more information, see Deprecated Types in Windows Workflow Foundation 4.5.

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 =   
        DependencyProperty.Register(  
            "MyProperty",   
            typeof(string),   
            typeof(Activity1),  
            new PropertyMetadata(  
                DependencyPropertyOptions.Metadata,  
                new ValidationOptionAttribute(ValidationOption.Required)));  

    [Browsable(true)]  
    [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]  
    public string MyProperty  
    {  
        get  
        {  
            return ((string)(base.GetValue(Activity1.MyPropertyProperty)));  
        }  
        set  
        {  
            base.SetValue(Activity1.MyPropertyProperty, value);  
        }  
    }  
}

Constructors

ValidationOptionAttribute(ValidationOption)

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

Properties

TypeId	When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute)
ValidationOption	Gets the value of the ValidationOption associated with this instance.

Methods

Equals(Object)	Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute)
GetHashCode()	Returns the hash code for this instance. (Inherited from Attribute)
GetType()	Gets the Type of the current instance. (Inherited from Object)
IsDefaultAttribute()	When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute)
Match(Object)	When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the current object. (Inherited from Object)

Explicit Interface Implementations

_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)	Maps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)	Retrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute)
_Attribute.GetTypeInfoCount(UInt32)	Retrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)	Provides access to properties and methods exposed by an object. (Inherited from Attribute)

Applies to

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