Επεξεργασία

Κοινή χρήση μέσω

MessageBuffer.Close Method

  • Reference

Definition

Namespace:
System.ServiceModel.Channels
Assembly:
System.ServiceModel.Primitives.dll
Assembly:
System.ServiceModel.dll
Package:
System.ServiceModel.Primitives v8.1.0
Source:
MessageBuffer.cs
Source:
MessageBuffer.cs

Finishes working with the buffer.

public:
 abstract void Close();
public abstract void Close ();
abstract member Close : unit -> unit
Public MustOverride Sub Close ()

Examples

The following example demonstrates how to properly close a message buffer.

public void AfterReceiveReply(ref Message reply, object correlationState)  
{  
    // Create the buffer.
    MessageBuffer buffer = reply.CreateBufferedCopy(13000);  
    // Inspect the response (for example, extract the body contents).
    Message thisReply = buffer.CreateMessage();
    XmlDictionaryReader reader = thisReply.GetReaderAtBodyContents();
    var info = new StringBuilder();
    XmlWriter writer = XmlWriter.Create(info);  
    writer.WriteNode(reader, true);  
    writer.Close();  
    // Resolution:  Re-create the message from the buffer before  
    // closing.  
    reply = buffer.CreateMessage();  
    // You can close the buffer after the message has been recreated.  
    buffer.Close();
}

Remarks

You should always close a MessageBuffer instance by calling Close when finished working with it. This allows system resources to potentially be freed sooner.

If you have called CreateBufferedCopy to create a message buffer of a message, and inspected the message using CreateMessage, you will get a InvalidOperationException when you attempt to close the buffer using this method. To avoid this problem, you need to recreate the message from the buffer before closing. See the code sample in the Example section for a demonstration of the previous scenario and a way to resolve this problem.

Applies to