Bianry data in XML

[SutapaDasgupta]

Hello,

I am creating XML on fly and my data is stored in WTL::CString object and this data is having some Binary data

e.g.

These are the steps I do to create my XML and "strFailedDesc" is WTL::CString object and contains binary data.

sipNode = m_sipXMLDoc->createElement(_bstr_t("FailedDesc"));
strFailedTransactionXML = "<![CDATA[";
strFailedTransactionXML += strFailedDesc;
strFailedTransactionXML += "]]>";
sipNode->text = _bstr_t(strFailedTransactionXML) ;

sipNode->text = _bstr_t(strFailedTransactionXML) ; ..This soperation falies and gives error:

"Code = 80004005, Message = Unspecified error Source = msxml4.dll Description = An invalid character was found in text content."

This works perfectly well when there is no binary data in "strFailedDesc"

I am new in XML programming, Can somebody tell me why this error is comming and what is the way around.

Thanks

[TheCPUWizard]

Simple.

XML is a text based protocol!

[SutapaDasgupta]

Even when we enclose the binary data in CDATA section XML parser works?

Isn't it supposed to ignore it.

So there is no way of passing binary data in XML.

[TheCPUWizard]

Well, there are a number of techniques for passing binary data in a test wrapper. UUENCODE is probably the granddady of them all. Microsoft SOAP protocol is XML based and supports extended types of data transfer.