Represents the data sent when an event is raised using the HandleExternalEventActivity activity.
System.EventArgs
System.Workflow.Activities.ExternalDataEventArgs
Namespace: System.Workflow.Activities
Assembly: System.Workflow.Activities (in System.Workflow.Activities.dll)
<SerializableAttribute> _ Public Class ExternalDataEventArgs _ Inherits EventArgs
[SerializableAttribute] public class ExternalDataEventArgs : EventArgs
[SerializableAttribute] public ref class ExternalDataEventArgs : public EventArgs
[<SerializableAttribute>] type ExternalDataEventArgs = class inherit EventArgs end
The ExternalDataEventArgs type exposes the following members.
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ExternalDataEventArgs() | Initializes a new instance of the ExternalDataEventArgs class. |
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ExternalDataEventArgs(Guid) | Initializes a new instance of the ExternalDataEventArgs class using the instance identifier of the workflow. |
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ExternalDataEventArgs(Guid, IPendingWork, Object) | Initializes a new instance of the ExternalDataEventArgs class. |
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ExternalDataEventArgs(Guid, IPendingWork, Object, Boolean) | Initializes a new instance of the ExternalDataEventArgs class. |
| Name | Description | |
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Identity | Gets or sets the identity of the user that raised the event. |
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InstanceId | Gets or sets the workflow instance identifier for the workflow instance that contains the HandleExternalEventActivity that is expected to handle the event. |
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WaitForIdle | Gets or sets a value that indicates whether the event should be raised immediately, or if the workflow should go idle before raising the event. |
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WorkHandler | Gets or sets the IPendingWork to allow the external code, raising the event, to participate in the batch. |
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WorkItem | Gets or sets the object that contains the external code that raises the event. |
| Name | Description | |
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Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
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Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
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GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
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GetType | Gets the Type of the current instance. (Inherited from Object.) |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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ToString | Returns a string that represents the current object. (Inherited from Object.) |
A local communication interface marked with ExternalDataExchangeAttribute must declare a type that derives from ExternalDataEventArgs in the interface definition for the corresponding event to be handled in a workflow with a HandleExternalEventActivity activity.
An event class that inherits from ExternalDataEventArgs must implement a constructor that uses the :base(instanceId) constructor. In addition, the new event class must be marked as Serializable as shown in the following code.
[Serializable] public class TaskEventArgs : ExternalDataEventArgs { private string orderName; public TaskEventArgs(Guid instanceId, string id) :base(instanceId) { orderName = id; } public string Id { get { return orderName; } set { orderName = value; } } }
.NET Framework
Supported in: 4, 3.5, 3.0Windows 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.