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Programmatic update of InfoPath form XML is stripping off tags

Posted By:      Posted Date: October 08, 2010    Points: 0   Category :SharePoint


I have a C# program that is looping through all of the forms (browser enabled) in my forms library and injecting an XML node into each of them (for a newly promoted field).  For some reason, when the XML is saved back to the form, the first few tags are being stripped off.  Specifically, these tags are:

<?xml version="1.0"?>
<?mso-infoPathSolution name="urn:schemas-microsoft-com:office:infopath:Contractor-DB-Form:-myXSD-2009-09-10T18-19-55" solutionVersion="" productVersion="" PIVersion="" href="http://echouat.rbs.us/npe/FormServerTemplates/Contractor_DB_Form.xsn"?>
<?mso-application progid="InfoPath.Document" versionProgid="InfoPath.Document.2"?>

My code to update the XML is as follows:

        private static SPListItem InsertXmlNode(SPListItem infoPathForm, string nodeToUpdateStr, string nodeToInsertStr,
            string nodeInnerXmlStr, string firstNode)
            //load form into xml document

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