/// <summary>
/// Remove outer nodes from the message part content and leave the body.
/// </summary>
/// <param name="messagePart">The message part</param>
/// <param name="bodyContainerXPath">The XPath specifying the body of the message.</param>
/// <returns>The message part with the envelope removed.</returns>
public static IBaseMessagePart RemoveEnvelope(this IBaseMessagePart messagePart, string bodyContainerXPath)
{
if (string.IsNullOrEmpty(bodyContainerXPath))
{
return(messagePart);
}
var bodyXml = messagePart.AsXmlDocument();
// Assign content back to part
var contentStream = new MemoryStream();
var sw = new StreamWriter(contentStream);
var selectSingleNode = bodyXml.SelectSingleNode(bodyContainerXPath);
if (selectSingleNode != null)
{
sw.Write(selectSingleNode.FirstChild.OuterXml);
}
sw.Flush();
contentStream.StreamAtStart();
messagePart.Data = contentStream;
return(messagePart);
}