July, 2005

Some people were using digital cameras to capture the source code from our "InfoPath: Developing Forms with Managed Code" sessions, but we want to make it easier than that!

So here's the code Ned Friend used in the TechEd Europe version of the presentation (David Gerhardt used similar code in his USA version of the talk in Orlando):

DISCLAIMER: This code is designed to be short and sweet for demo purposes only. IT IS NOT BEST PRACTICES NOR READY FOR PRODUCTION.

using System;

using Microsoft.Office.Interop.InfoPath.SemiTrust;

using System.Xml;

using System.Xml.Xsl;

using System.Security.Cryptography;

using System.IO;

using Word = Microsoft.Office.Interop.Word;

[assembly: System.ComponentModel.DescriptionAttribute("InfoPathStartupClass, Version=1.0, Class=StatusReport.StatusReport")]

namespace StatusReport

// The namespace prefixes defined in this attribute must remain synchronized with

// those in the form definition file (.xsf).

    [InfoPathNamespace("xmlns:soapenc=\"http://schemas.xmlsoap.org/soap/encoding/\" xmlns:xdUtil=\"http://schemas.microsoft.com/office/infopath/2003/xslt/Util\" xmlns:xdXDocument=\"http://schemas.microsoft.com/office/infopath/2003/xslt/xDocument\" xmlns:tm=\"http://microsoft.com/wsdl/mime/textMatching/\" xmlns:dfs=\"http://schemas.microsoft.com/office/infopath/2003/dataFormSolution\" xmlns:xhtml=\"http://www.w3.org/1999/xhtml\" xmlns:xd=\"http://schemas.microsoft.com/office/infopath/2003\" xmlns:soap=\"http://schemas.xmlsoap.org/wsdl/soap/\" xmlns:tns=\"http://tempuri.org/\" xmlns:msxsl=\"urn:schemas-microsoft-com:xslt\" xmlns:http=\"http://schemas.xmlsoap.org/wsdl/http/\" xmlns:xdMath=\"http://schemas.microsoft.com/office/infopath/2003/xslt/Math\" xmlns:xsf=\"http://schemas.microsoft.com/office/infopath/2003/solutionDefinition\" xmlns:mime=\"http://schemas.xmlsoap.org/wsdl/mime/\" xmlns:wsdl=\"http://schemas.xmlsoap.org/wsdl/\" xmlns:my=\"http://schemas.microsoft.com/office/infopath/2003/myXSD/2005-05-24T18:10:14\" xmlns:xdDate=\"http://schemas.microsoft.com/office/infopath/2003/xslt/Date\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"")]

    public class StatusReport

        private XDocument thisXDocument;

        private Application thisApplication;

        // For encryption/decryption

        private Rijndael key = new RijndaelManaged();

        public void _Startup(Application app, XDocument doc)

            // You can add additional initialization code here.

        public void _Shutdown()

        // The following function handler is created by Microsoft Office InfoPath. Do not

        // modify the type or number of arguments.

        public void OnLoad(DocReturnEvent e)

            // Set the username

                thisXDocument.DOM.selectSingleNode("/my:status/my:name");

            if (userName.text == String.Empty)

            // Load key information

            IXMLDOMNode keyNode = thisXDocument.DOM.selectSingleNode("/my:status/my:key");

            IXMLDOMNode ivNode = thisXDocument.DOM.selectSingleNode("/my:status/my:iv");

            byte[] keyBytes = Convert.FromBase64String(keyNode.text);

            byte[] ivBytes = Convert.FromBase64String(ivNode.text);

            // Decrypting the project name

            MemoryStream ms = new MemoryStream();

                new CryptoStream(ms, key.CreateDecryptor(keyBytes, ivBytes), CryptoStreamMode.Write);

                thisXDocument.DOM.selectSingleNode("/my:status/my:project/my:name");

            byte[] projectBytes = Convert.FromBase64String(projectNode.text);

            csRijndael.Write(projectBytes, 0, (int)projectBytes.Length);

            string projectName =

                System.Text.Encoding.Unicode.GetString(ms.GetBuffer(), 0, (int)ms.Length);

        // The following function handler is created by Microsoft Office InfoPath. Do not

        // modify the type or number of arguments.

        [InfoPathEventHandler(MatchPath = "/my:status/my:date", EventType = InfoPathEventType.OnValidate)]

        public void date_OnValidate(DataDOMEvent e)

            // Custom data validation because InfoPath does not have functions for date arithmetic

            if (e.Operation == "Insert")

                try

                    if (date.CompareTo(DateTime.Today.AddDays(5)) > 0)

                        e.ReportError(e.Site, "Date cannot be more than 5 days away.",

                                                     false, null, 1, "modal");

                catch (FormatException)

                    // Incorrectly formatted dates are handled automatically by InfoPath.

        // The following function handler is created by Microsoft Office InfoPath. Do not

        // modify the type or number of arguments.

        public void OnSubmitRequest(DocReturnEvent e)

            // If Online, submit using data adapter

            if (thisApplication.MachineOnlineState == XdMachineOnlineState.xdOnline)

                    (WebServiceAdapter2)thisXDocument.DataAdapters["Submit"];

            // If Offline, save to cache

            else

                XmlDocument xmlDoc = new XmlDocument();

                string now = DateTime.Now.ToString("yyyy-MM-dd HH.mm.ss.ff");

                xmlDoc.PreserveWhitespace = true;

                xmlDoc.Save("C:\\TechEd2005\\Submit\\Form " + now + ".xml");

            e.ReturnStatus = true;

        // The following function handler is created by Microsoft Office InfoPath. Do not

        // modify the type or number of arguments.

        public void OnSaveRequest(SaveEvent e)

            // Set up encryption streams

            MemoryStream ms = new MemoryStream();

                new CryptoStream(ms, new ToBase64Transform(), CryptoStreamMode.Write);

                new CryptoStream(csBase64, key.CreateEncryptor(), CryptoStreamMode.Write);

            // Encrypt project name

                thisXDocument.DOM.selectSingleNode("/my:status/my:project/my:name");

            byte[] projectBytes =

            csRijndael.Write(projectBytes, 0, (int)projectBytes.Length);

            string projectEncrypted =

                System.Text.Encoding.ASCII.GetString(ms.GetBuffer(), 0, (int)ms.Length);

            // Save key information

            IXMLDOMNode keyNode = thisXDocument.DOM.selectSingleNode("/my:status/my:key");

            IXMLDOMNode ivNode = thisXDocument.DOM.selectSingleNode("/my:status/my:iv");

            // Save encrypted project name, then decrypt in view

            string projectOriginal = projectNode.text;

            thisXDocument.SetDirty(false);

            e.ReturnStatus = true;

        // The following function handler is created by Microsoft Office InfoPath. Do not

        // modify the type or number of arguments.

        [InfoPathEventHandler(MatchPath = "ButtonGenerate", EventType = InfoPathEventType.OnClick)]

        public void ButtonGenerate_OnClick(DocActionEvent e)

            // This button converts the XML Form to a Word Document

            // Load the XSLT file from resources

            domDocument.load("StatusReport.xsl");

            XmlDocument xsltDocument = new XmlDocument();

            // Load the XML DOM into System.Xml

            XmlDocument infoPathDocument = new XmlDocument();

            // Apply the XSLT to the XML DOM

            XslCompiledTransform xslt = new XslCompiledTransform();

            XmlDocument outputDocument = new XmlDocument();

            using (XmlWriter writer = outputNavigator.AppendChild())

            // Instantiate Word with the new document

            object missing = System.Reflection.Missing.Value;

            Word.Application wordApplication = new Word.ApplicationClass();

            Word.Document oDoc = new Word.DocumentClass();

            oDoc = wordApplication.Documents.Add(ref missing, ref missing, ref missing, ref missing);

            wordApplication.Selection.Range.InsertXML(outputDocument.OuterXml, ref missing);

            wordApplication.Visible = true;