Infopath upload attachment

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Original article:Http://www.bizsupportonline.net/blog/2010/01/upload-document-sharepoint-infopath-form/By s.y. M. Wong-a-ton This document describes how to use code to extract attachments from an infopath form and upload them to SharePoint.Run the following code to name infopathDocumentFile in the attachment control, uploaded to SharePoint namedMydocuments. The specific operation is to add a button on the form, add the vsta code on the button, and add the following code. In the entire programInfopathattachmentdecoderFor details about how to write this class, refer to Microsoft's official Article http://support.microsoft.com/kb/892730. // Retrieve the value of the attachment in the infopath form Xpathnavigator ipformnav = maindatasource. createnavigator (); Xpathnavigator nodenav = ipformnav. selectsinglenode ( "// My: Document", namespacemanager ); String attachmentvalue = string. empty; If (nodenav! = NULL &&! String. isnullorempty (nodenav. Value )) { Attachmentvalue = nodenav. value; // Decode the infopath file attachment Infopathattachmentdecoder dec = New infopathattachmentdecoder (attachmentvalue ); String filename = dec. filename; Byte [] DATA = dec. decodedattachment; // Add the file to a document library Using (spsite site = new spsite ("http ://Servername")) { Using (spweb web = site. openweb ()) { Web. allowunsafeupdates = true; Spfolder doclib = web. folders ["mydocuments"]; Doclib. Files. Add (filename, data ); Web. allowunsafeupdates = false; Web. Close (); } Site. Close (); } } Note that you need to reference SharePoint DLL in the vsta project and add a reference to Microsoft. SharePoint namespace. Then, give the infopath form full security trust so that the code can access SharePoint resources. This article is from 51cto. com technical blog