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 sealed class ValidationOptionAttribute : 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 |
|---|
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.




