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<variable>

Represents a collection of variables associated with this activity query.

For more information on tracking profile queries, see Tracking Profiles.

<configuration>
  <system.ServiceModel>
    <tracking>
      <trackingProfile>
        <workflow>
          <activityStateQueries>
            <activityStateQuery>
              <variables>
                <variable>

Syntax

<tracking>
  <trackingProfile name="Name">
    <workflow>
      <activityStateQueries>
        <activityStateQuery activityName="String" />
        <variables>
          <variable name="String" />
        </variables>
      </activityStateQueries>
    </workflow>
  </trackingProfile>
</tracking>

Attributes and Elements

The following sections describe attributes, child elements, and parent elements.

Attributes

Attribute Description
name A string that specifies the name of the variable.

Child Elements

None.

Parent Elements

Element Description
<variable> A variable associated with an activity state query.

Remarks

One unique feature of an ActivityStateQuery is the ability to extract data when tracking the execution of a workflow. This provides additional context when accessing the tracking records post execution. You can use the <arguments>, <states> and <states> elements to extract any variable or argument from any activity in a workflow. The following example shows an activity state query that extracts variables and arguments when the activity’s Closed tracking record is emitted. Variables and arguments can be extracted only with an ActivityStateRecord and thus are subscribed to within a tracking profile using <activityStateQuery>.

<activityStateQuery activityName="SendEmailActivity">
  <states>
    <state name="Closed"/>
  </states>
  <variables>
    <variable name="FromAddress"/>
  </variables>
  <arguments>
    <argument name="Result"/>
  </arguments>
</activityStateQuery>

See also

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