my example - creating a document node with several fields and a file attachment

cheers



UserInfo ui = UserInfoProvider.GetUserInfo("administrator");
TreeProvider tree = new TreeProvider(ui);

// Get the parent document
CMS.TreeEngine.TreeNode parentNode = tree.SelectSingleNode(CMSContext.CurrentSiteName, "/Files/Upload", TreeProvider.ALL_CULTURES, true, null, false);

// define the node details //
CMS.TreeEngine.TreeNode node = new CMS.TreeEngine.TreeNode("Custom.Page", tree);
node.DocumentName = String.Format("{0}-{1} {2}", RowID, Firstname, Surname); // node name //
node.DocumentCulture = CMSContext.CurrentUser.PreferredCultureCode; // node culture //

// Set document fields //
node.SetValue("RowID", RowID);
node.SetValue("Firstname", Firstname);
node.SetValue("Surname", Surname);

// insert the document //
DocumentHelper.InsertDocument(node, parentNode.NodeID, tree);

// attach file to the existing document //
DocumentHelper.AddAttachment(node, "File", FileUpload.PostedFile, tree);
DocumentHelper.UpdateDocument(node, tree);