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GetActivityEvent

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Pushes the name of the current activity event onto the stack.

Syntax


<wf:Operation Name="GetActivityEvent"/>

Parameters

None.

Pushed Value

String containing the current activity event.

Remarks

A workflow activity can pass through several states during the lifetime of the workflow. The Windows Workflow Foundation BAM interceptor supports most of the execution status values defined by the System.Workflow.ComponentModel.ActivityExecutionStatus enumeration, as shown in the following table.

Execution status Description
Canceling Represents the status when an activity is in the process of being canceled.
Closed Represents the status when an activity is closed.
Compensating Represents the status when an activity is compensating.
Executing Represents the status when an activity is executing.
Faulting Represents the status when an activity is faulting.

Note

You cannot use both GetActivityEvent and GetWorkflowEvent in the same OnEvent element.

Example

The following sample contains an event filter expression configured to find a specific activity—FoodAndDringPolicy—in a Closed workflow. This is done by using a combination of operations including GetActivityEvent, GetActivityName, and logical operations.

<ic:Filter>
  <ic:Expression>
    <wf:Operation Name="GetActivityName"/>
    <ic:Operation Name="Constant">
      <ic:Argument>FoodAndDrinksPolicy</ic:Argument>
    </ic:Operation>
    <ic:Operation Name="Equals"/>
    <wf:Operation Name="GetActivityEvent"/>
    <ic:Operation Name="Constant">
      <ic:Argument>Closed</ic:Argument>
    </ic:Operation>
    <ic:Operation Name="Equals"/>
    <ic:Operation Name="And"/>
  </ic:Expression>
</ic:Filter>

This filter pattern is common with Windows Workflow Foundation interceptor configuration files.

Note

Arguments do not require quotation marks unless you are explicitly trying to match a string that contains quotation marks.

See Also

System.Workflow.ComponentModel.ActivityExecutionStatus enumeration