MessageDescription Class

Definition

Namespace:

System.ServiceModel.Description

Assembly:

System.ServiceModel.Primitives.dll

Package:

System.ServiceModel.Primitives v8.1.1

Source:

MessageDescription.cs

Represents the description of a message.

C#

public class MessageDescription

Inheritance

Object

MessageDescription

Examples

The following example uses the MessageDescription returned from Messages property of the OperationDescription class. The code iterates through the collection of endpoints and prints each endpoint name, as well as the name of each operation in the endpoint.

C#

private void PrintDescription(ServiceHost sh)
{
    // Declare variables.
    int i, j, k, l, c;
    ServiceDescription servDesc = sh.Description;
    OperationDescription opDesc;
    ContractDescription contractDesc;
    MessageDescription methDesc;
    MessageBodyDescription mBodyDesc;
    MessagePartDescription partDesc;
    IServiceBehavior servBeh;
    ServiceEndpoint servEP;

    // Print the behaviors of the service.
    Console.WriteLine("Behaviors:");
    for (c = 0; c < servDesc.Behaviors.Count; c++)
    {
        servBeh = servDesc.Behaviors[c];
        Console.WriteLine("\t{0}", servBeh.ToString());
    }

    // Print the endpoint descriptions of the service.
    Console.WriteLine("Endpoints");
    for (i = 0; i < servDesc.Endpoints.Count; i++)
    {
        // Print the endpoint names.
        servEP = servDesc.Endpoints[i];
        Console.WriteLine("\tName: {0}", servEP.Name);
        contractDesc = servEP.Contract;

        Console.WriteLine("\tOperations:");
        for (j = 0; j < contractDesc.Operations.Count; j++)
        {
            // Print the operation names.
            opDesc = servEP.Contract.Operations[j];
            Console.WriteLine("\t\t{0}", opDesc.Name);
            Console.WriteLine("\t\tActions:");
            for (k  = 0; k < opDesc.Messages.Count; k++)
            {
                // Print the message action.
                methDesc = opDesc.Messages[k];
                Console.WriteLine("\t\t\tAction:{0}", methDesc.Action);

                // Check for the existence of a body, then the body description.
                mBodyDesc = methDesc.Body;
                if (mBodyDesc.Parts.Count > 0)
                {
                    for (l = 0; l < methDesc.Body.Parts.Count; l++)
                    {
                        partDesc = methDesc.Body.Parts[l];
                        Console.WriteLine("\t\t\t\t{0}",partDesc.Name);
                    }
                }
            }
        }
    }
}

Remarks

The MessageDescription contains the Headers and Body properties to provide get access to these parts of the message. Whether the message is incoming or outgoing is indicated by the Direction property. It also provides an Action property where the URI that indicates the intention of the message may be specified.

Constructors

MessageDescription(String, MessageDirection)

Initializes a new instance of the MessageDescription class with a specified action and direction.

Properties

Action	Gets or sets the action parameter of the SOAP message that identifies the intent of the message.
Body	Gets the body of the SOAP message.
Direction	Gets the direction that indicates whether the message is incoming or outgoing.
Headers	Gets the description of the headers of the SOAP message.
MessageType	Gets or sets a type that identifies the type of message contract.
Properties	Gets a description of the properties of the SOAP message.

Applies to