Content Definition Dialog Box
The Content Definition dialog box is used in Windows Workflow Designer to configure the Content properties of the Send, Receive, SendReply, and ReceiveReply activities. For more information about the activity designers that use this box, see the Send Activity Designer, Receive Activity Designer, ReceiveAndSendReply Template Designer, and SendAndReceiveReply Template Designer topics.
The following table describes the user interface (UI) elements of the Initialize Correlation dialog box.
Specifies the message content with the Message data expression text box and the type by using the Message type drop-down list box. By default, the Content Definition uses the ReceiveMessageContent, which expects a Message or a message contract type within the workflow service definition.
Click the Parameters radio button to use ReceiveParametersContent, which expects a data contract. Use the data grid to set a generic collection of OutArgument key/value pairs whose values are assigned to variable parameters in the current workflow.
The Content Definition dialog box is used by the Send, Receive, ReceiveAndSendReply, and SendAndReceiveReply designers. Accessing them is similar in each case and the Receive case is used here to illustrate the procedure.
The Receive activity designer can be dragged from the Toolbox and dropped on to the Workflow Designer surface wherever activities are usually placed. This creates a Receive activity with a default DisplayName of Receive. Select the Receive activity designer and click the ellipsis button next to the (Content) text for the Content property in the property grid for the Content Definition dialog box to appear.
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