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The first branch in a Listen shape for which a condition is met (a delay is reached or a message is received) will run, and none of the other branches will run. The first shape within a Listen branch must be either a Delay shape or a Receive shape. You can place any other shape below the initial Receive or Delay shape. You can use an activation receive in a Listen branch, but if one branch contains an activation receive, then all branches must contain activation receives, and no time-out can be used. The activation receive must be the first action in each branch.
| Use this | To do this |
|---|---|
| Activate property | If the branch contains a Receive shape, select True or False to specify whether it is an activation receive. |
| Branch Type property | From the drop-down list, select either Receive or Delay to specify the type of the branch. Different properties will be available to you depending on the branch type. |
| Delay property | Specify a time-out using System.DateTime or System.TimeSpan in order to create a corresponding delay in your orchestration. For example, if you specify System.DateTime.UtcNow.AddSeconds (60), your orchestration will be idle for sixty seconds before proceeding. |
| Filter Expression property | Specify an expression to test properties on the incoming message to decide whether to process it. |
| Initializing Correlation Sets property | From the drop-down list, select the correlation sets which will be initialized by the values in the sent message. |
| Following Correlation Sets property | From the drop-down list, select already-initialized correlation sets. |
| Message property | If the branch contains a Receive shape, select the message to be received from the drop-down list. |
| Operation property | If the branch contains a Receive shape, select the operation represented by the receive from the drop-down list. |
| Report to Analyst property | Select True if you want to make this shape viewable in the Visual Business Analyst Tool. |