RuleInvokeAttribute Class
Definition
Important
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Indicates that a method is invoked by a condition. This class cannot be inherited.
public ref class RuleInvokeAttribute sealed : System::Workflow::Activities::Rules::RuleAttribute[System.AttributeUsage(System.AttributeTargets.Method | System.AttributeTargets.Property, AllowMultiple=true)]
public sealed class RuleInvokeAttribute : System.Workflow.Activities.Rules.RuleAttribute[<System.AttributeUsage(System.AttributeTargets.Method | System.AttributeTargets.Property, AllowMultiple=true)>]
type RuleInvokeAttribute = class
inherit RuleAttributePublic NotInheritable Class RuleInvokeAttribute
Inherits RuleAttribute- Inheritance
- Attributes
Examples
The following code example demonstrates proper usage of the RuleInvokeAttribute.
[RuleInvokeAttribute("UpdateAttributeValue")]
bool DoSomething()
{
return attributevalue();
}
Remarks
This attribute is used to support a forward chaining model that will cause the reevaluation of rules based on state change. The RuleReadAttribute, RuleInvokeAttribute, and RuleWriteAttribute classes each indicate the properties used to read a condition, write an action, and invoke a method. These attributes enable the workflow to only reevaluate rules that will change the final output.
Constructors
| RuleInvokeAttribute(String) |
Initializes a new instance of the RuleInvokeAttribute class. |
Properties
| MethodInvoked |
Gets the method invoked by the condition. |
| TypeId |
When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute) |
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) |
