StackOverflow2013

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plurals

PO
primarykey
Id
10759660
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2012-05-25T18:29:45.633
FavoriteCount
0
LastActivityDate
2012-06-15T14:19:09.910
LastEditDate
2012-06-15T14:19:09.910
LastEditorUserId
-1
OwnerUserId
1456887
ParentId
1319043
PostTypeId
2
Score
4
ViewCount
0
LastEditorDisplayName
text
Body
I found a foible in Microsoft's implementation of Message.ToString(). Then I figured out the cause and found a solution. Message.ToString() may have the Body contents as "... stream ...". This means that the Message was created using an XmlRead or XmlDictionaryReader that was created from a Stream that hasn't been read yet. ToString is documented as NOT changing the State of the Message. So, they don't read the Stream, just put in a marker that there is on. Since my goal was to (1) get the string, (2) alter the string, and (3) create a new Message from the altered string, I needed to do a little extra. Here's what I came up with: <pre><code>/// <summary> /// Get the XML of a Message even if it contains an unread Stream as its Body. /// <para>message.ToString() would contain "... stream ..." as /// the Body contents.</para> /// </summary> /// <param name="m">A reference to the <c>Message</c>. </param> /// <returns>A String of the XML after the Message has been fully /// read and parsed.</returns> /// <remarks>The Message <paramref cref="m"/> is re-created /// in its original state.</remarks> String MessageString(ref Message m) { // copy the message into a working buffer. MessageBuffer mb = m.CreateBufferedCopy(int.MaxValue); // re-create the original message, because "copy" changes its state. m = mb.CreateMessage(); Stream s = new MemoryStream(); SmlWriter xw = CmlWriter.Create(s); mb.CreateMessage().WriteMessage(xw); xw.Flush(); s.Position = 0; byte[] bXML = new byte[s.Length]; s.Read(bXML, 0, s.Length); // sometimes bXML[] starts with a BOM if (bXML[0] != (byte)'<') { return Encoding.UTF8.GetString(bXML,3,bXML.Length-3); } else { return Encoding.UTF8.GetString(bXML,0,bXML.Length); } } /// <summary> /// Create an XmlReader from the String containing the XML. /// </summary> /// <param name="xml">The XML string o fhe entire SOAP Message.</param> /// <returns> /// An XmlReader to a MemoryStream to the <paramref cref="xml"/> string. /// </returns> XmlReader XmlReaderFromString(String xml) { var stream = new System.IO.MemoryStream(); // NOTE: don't use using(var writer ...){...} // because the end of the StreamWriter's using closes the Stream itself. // var writer = new System.IO.StreamWriter(stream); writer.Write(xml); writer.Flush(); stream.Position = 0; return XmlReader.Create(stream); } /// <summary> /// Creates a Message object from the XML of the entire SOAP message. /// </summary> /// <param name="xml">The XML string of the entire SOAP message.</param> /// <param name="">The MessageVersion constant to pass in /// to Message.CreateMessage.</param> /// <returns> /// A Message that is built from the SOAP <paramref cref="xml"/>. /// </returns> Message CreateMessageFromString(String xml, MessageVersion ver) { return Message.CreateMessage(XmlReaderFromString(xml), ver); } </code></pre> -Jesse
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Title
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1. This table or related slice is empty.
PostParentId
1. POHow to get message content from System.ServiceModel.Channels.Message?
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 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USCommunity
UserOwnerUserId
1. USJesse Chisholm
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1. This table or related slice is empty.
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1. This table or related slice is empty.
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1. VO
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