Programmatically uploading an InfoPath form to a SharePoint document library

In this case I am using the viewswitched event captured in the form “code behind” but this means I had to publish the form as an Administrator-approved template and upload it into Central Admin.  There are a few ways to code this but here I am using the SharePoint object model. I use the RunWithElevatedPrivileges call to execute the code under the application pool account. This is relevant because I am allowing annonymous users to “submit” the form to SharePoint.

public void FormEvents_ViewSwitched(object sender, ViewSwitchedEventArgs e)
        {
        SPSecurity.RunWithElevatedPrivileges(delegate() {

         EventLog _eventLog;
            _eventLog = new EventLog(“Application”);
            _eventLog.Source = “InfoPath Form Upload”;

               
            XPathNavigator xPathNav = MainDataSource.CreateNavigator();
            string name = xPathNav.SelectSingleNode(“/my:MessageSection/my:hiddenName”, NamespaceManager).InnerXml;
             string webappurl = this.Template.Uri.ToString().Remove(0, 7);
            webappurl = webappurl.Split(‘/’)[0];
           string url = “http://” + webappurl + “/FormLibrary/” + name + “.xml”;                   

            System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();

           byte[] Data = encoding.GetBytes(xPathNav.OuterXml);

            try
            {

                 SPSite mySiteCollection = new SPSite(http://sitecollurl);
                SPWeb myWeb = mySiteCollection.RootWeb;    
                SPFolder doclib = myWeb.Folders[“Form Library”];
                SPFile file = doclib.Files.Add(doclib.Url + “/” +
                      name + “.xml”, Data, true);
                doclib.Update();
            }

            catch (Exception ex)
            {
                _eventLog.WriteEntry(“Form Upload Failed ” + ex.Message);
            }
        });
        }

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