ValidationOptionAttribute Class
Custom attribute that contains ValidationOption information. This class cannot be inherited.
Assembly: System.Workflow.ComponentModel (in System.Workflow.ComponentModel.dll)
[AttributeUsageAttribute(AttributeTargets::Property | AttributeTargets::Event, AllowMultiple = false, Inherited = true)] [ObsoleteAttribute("The System.Workflow.* types are deprecated. Instead, please use the new types from System.Activities.*")] public ref class ValidationOptionAttribute sealed : Attribute
| Name | Description | |
|---|---|---|
![]() | ValidationOptionAttribute(ValidationOption) | Initializes a new instance of the ValidationOptionAttribute class, with a value for ValidationOption. |
| Name | Description | |
|---|---|---|
![]() | TypeId | |
![]() | ValidationOption | Gets the value of the System.Workflow.ComponentModel.Compiler::ValidationOption associated with this instance. |
| Name | Description | |
|---|---|---|
![]() | Equals(Object^) | This API supports the product infrastructure and is not intended to be used directly from your code. 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() | |
![]() | 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.) |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
| Name | Description | |
|---|---|---|
![]() ![]() | _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.) |
Note |
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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); } } }
Available since 3.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.




