winform应用程序呈现infopath表单 - 陈小强

第一,vs中新建winform项目。

第二,在winform项目中添加引用

第三，添加一个用户控件

代码

 #region Component Designer generated code

        /// <summary> 
        /// Required method for Designer support - do not modify 
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.labelInfoPathNotInstalled = new System.Windows.Forms.Label();
            this.labelNoDocumentAvailable = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // labelInfoPathNotInstalled
            // 
            this.labelInfoPathNotInstalled.Anchor = System.Windows.Forms.AnchorStyles.None;
            this.labelInfoPathNotInstalled.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F,      System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.labelInfoPathNotInstalled.Location = new System.Drawing.Point(223, 175);
            this.labelInfoPathNotInstalled.Name = "labelInfoPathNotInstalled";
            this.labelInfoPathNotInstalled.Size = new System.Drawing.Size(192, 86);
            this.labelInfoPathNotInstalled.TabIndex = 0;
            this.labelInfoPathNotInstalled.Text = "Unfortunately InfoPath seems to be not installed on this computer.";
            this.labelInfoPathNotInstalled.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
            this.labelInfoPathNotInstalled.Visible = false;
            // 
            // labelNoDocumentAvailable
            // 
            this.labelNoDocumentAvailable.Anchor = System.Windows.Forms.AnchorStyles.None;
            this.labelNoDocumentAvailable.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.labelNoDocumentAvailable.Location = new System.Drawing.Point(223, 175);
            this.labelNoDocumentAvailable.Name = "labelNoDocumentAvailable";
            this.labelNoDocumentAvailable.Size = new System.Drawing.Size(192, 86);
            this.labelNoDocumentAvailable.TabIndex = 2;
            this.labelNoDocumentAvailable.Text = "No document is available.";
            this.labelNoDocumentAvailable.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
            this.labelNoDocumentAvailable.Click += new System.EventHandler(this.labelNoDocumentAvailable_Click);
            // 
            // InfoPathUserControl
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.Controls.Add(this.labelNoDocumentAvailable);
            this.Controls.Add(this.labelInfoPathNotInstalled);
            this.Name = "InfoPathUserControl";
            this.Size = new System.Drawing.Size(638, 436);
            this.Load += new System.EventHandler(this.InfoPathUserControl_Load);
            this.ResumeLayout(false);

        }

        #endregion

第四，为用户控件添加事件

代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using Microsoft.Office.InfoPath;
using System.IO;
using System.Reflection;
using System.Threading;
using System.Xml.XPath;
using System.Security.Permissions;
using System.Globalization;
using System.Runtime.InteropServices;

namespace FJGISDraw
{
    public enum UIStatesForm
    {
        NoDocumentAvailable,
        DocumentReadMode,
        DocumentEditMode
    };

    [EnvironmentPermissionAttribute(
        SecurityAction.InheritanceDemand)]
    public partial class InfoPathUserControl : UserControl
    {
        const string READONLY_VIEW_NAME = "readonly";

        InfoPathInitEventHandler infoPathInitEventHandler;

        private bool readOnly;
        internal bool ReadOnly
        {
            private set { readOnly = value; }
            get { return readOnly; }
        }

        public bool InfoPathInstalled { get; private set; }

        public bool IsInitialized { get; set; }

        private Microsoft.Office.InfoPath.FormControl formControl;

        public InfoPathUserControl()
        {
            InitializeComponent();
        }


        #region Initialize InfoPath

        public void InitInfoPathForm()
        {
            if (this.IsInitialized) return;

            // Write asynchron
            this.InitInfoPath();
        }

        [System.Diagnostics.CodeAnalysis.SuppressMessage(
            "Microsoft.Design", 
            "CA1031", 
            Justification="False initialization does not depend on exception type")]
        void InitInfoPath()
        {
            // Init form component
            System.ComponentModel.ComponentResourceManager resources =
                new System.ComponentModel.ComponentResourceManager(
                    typeof(InfoPathUserControl));

            try
            {
                InitInfoPathControlUI(resources);
               
                this.labelInfoPathNotInstalled.Visible = false;
                this.InfoPathInstalled = true;

                InitInfoPathInitEventhandler();
            }
            catch (Exception)
            {
                this.InfoPathInstalled = false;

                this.labelInfoPathNotInstalled.Visible = true;
            }
            finally
            {
                this.labelNoDocumentAvailable.Visible = false;

                this.IsInitialized = true;

                // update again after init (only this view is needed)
                this.RefreshView(
                    UIStatesForm.NoDocumentAvailable);
            }
        }

        private void InitInfoPathControlUI(System.ComponentModel.ComponentResourceManager resources)
        {
            this.formControl =
                new Microsoft.Office.InfoPath.FormControl();
            ((System.ComponentModel.ISupportInitialize)
                (this.formControl)).BeginInit();

            this.formControl.Visible = false;
            this.formControl.Dock = DockStyle.Fill;
            this.formControl.Enabled = true;
            this.formControl.Location =
                new System.Drawing.Point(0, 0);
            this.formControl.Name = "formControl1";
            this.formControl.OcxState =
                ((System.Windows.Forms.AxHost.State)
                (resources.GetObject("formControl1.OcxState")));
            this.formControl.Size =
                new System.Drawing.Size(
                    this.Width,
                    this.Height);
            this.formControl.TabIndex = 0;

            this.Controls.Add(this.formControl);
            ((System.ComponentModel.ISupportInitialize)
                (this.formControl)).EndInit();
        }

        private void InitInfoPathInitEventhandler()
        {
            this.infoPathInitEventHandler =
                InfoPathInitEventHandler.CreateInstance(
                    this.formControl);

            this.formControl.SetInitEventHandler(
                this.infoPathInitEventHandler);
        }

        private void TestInitialization()
        {
            if (!this.IsInitialized) throw new InvalidOperationException("Object is not initialized");
            if (!this.InfoPathInstalled) throw new InvalidOperationException("InfoPath is not installed on this computer");
        }

        #endregion


        #region InfoPath loading / creating / handling

        [EnvironmentPermissionAttribute(
            SecurityAction.LinkDemand)]
        public void CreateFormTemplate(Uri formUrlName)
        {
            TestInitialization();

            this.CreateFormTemplate(
                formUrlName,
                null);
        }

        [EnvironmentPermissionAttribute(
            SecurityAction.LinkDemand)]
        public void CreateFormTemplate(
            Uri formUrlName,
            Stream dataStream)
        {
            TestInitialization();

            try
            {
                this.formControl.Close();

                // Open / create a form
                if (dataStream != null)
                    formControl.NewFromFormTemplate(
                        formUrlName.ToString(),
                        dataStream,
                        XmlFormOpenMode.Default);
                else
                    formControl.NewFromFormTemplate(
                        formUrlName.ToString());

                // Default view of InfoPath document could be the 
                // readonly or another one
                this.InitReadOnlyFlag();

                RefreshView(UIStatesForm.DocumentReadMode);
            }
            catch (Exception)
            {
                RefreshView(UIStatesForm.NoDocumentAvailable);

                throw;
            }
        }

        [EnvironmentPermissionAttribute(
            SecurityAction.LinkDemand)]
        public void CloseFormTemplate()
        {
            formControl.Close();
            
            RefreshView(UIStatesForm.NoDocumentAvailable);
        }

        [EnvironmentPermissionAttribute(
            SecurityAction.LinkDemand,
            Unrestricted = true)]
        public void SetFieldValue(string fieldName, string fieldValue)
        {
            TestInitialization();

            var navigator =
                formControl.XmlForm.MainDataSource.CreateNavigator();

            string namespaceName;
            bool foundNamespace;
            FindInfoPathNamespace(
                navigator,
                out namespaceName,
                out foundNamespace);

            var nav2 = navigator.Clone();
            var found = nav2.MoveToFollowing(
                fieldName,
                namespaceName);
            if (found)
                nav2.SetValue(fieldValue);
        }

        [EnvironmentPermissionAttribute(
            SecurityAction.LinkDemand)]
        public void SwitchView()
        {
            TestInitialization();

            try
            {
                ViewInfo readOnlyView = null;
                ViewInfo editView = null;
                foreach (ViewInfo view in this.formControl.XmlForm.ViewInfos)
                {
                    if (string.Compare(view.Name.ToLower(
                            CultureInfo.CurrentCulture),
                            READONLY_VIEW_NAME,
                            StringComparison.CurrentCulture) == 0)
                        readOnlyView = view;
                    else editView = view;
                }

                var new_readonly = !this.readOnly;

                if (new_readonly)
                    this.formControl.XmlForm.ViewInfos.SwitchView(readOnlyView);
                else this.formControl.XmlForm.ViewInfos.SwitchView(editView);

                // Switching view was successful
                this.readOnly = new_readonly;
            }
            catch (COMException)
            {
                // switching view was not successfull, do nothing
            }
        }

        #endregion


        #region Validate and save InfoPath document

        [EnvironmentPermissionAttribute(
            SecurityAction.LinkDemand)]
        public int ValidateInfoPath()
        {
            TestInitialization();
            
            return this.formControl.XmlForm.Errors.Count;
        }

        public string FormData
        {
            [EnvironmentPermissionAttribute(
                SecurityAction.LinkDemand)]
            get
            {
                TestInitialization();

                XmlForm xf = formControl.XmlForm;
                if (xf != null) return xf.MainDataSource.
                    CreateNavigator().OuterXml;
                else return string.Empty;
            }
        }

        #endregion


        #region Private help methods

        private static void FindInfoPathNamespace(
            System.Xml.XPath.XPathNavigator navigator2,
            out string namespaceName2,
            out bool foundNamespace2)
        {
            namespaceName2 = string.Empty;
            foundNamespace2 = false;
            if (navigator2.MoveToFirstChild())
            {
                namespaceName2 = navigator2.LookupNamespace(@"xmlns:my");
                while (namespaceName2 == null || namespaceName2.Length <= 0)
                {
                    if (!navigator2.MoveToNext())
                        break;
                    namespaceName2 = navigator2.LookupNamespace(@"my");
                };
            }
            if (namespaceName2 != null && namespaceName2.Length > 0)
                foundNamespace2 = true;
        }

        private void RefreshView(UIStatesForm currentUIStatesForms)
        {
            if (this.InfoPathInstalled)
            {
                switch (currentUIStatesForms)
                {
                    case UIStatesForm.NoDocumentAvailable:
                        this.Enabled = false;
                        if (this.formControl != null)
                        {
                            this.formControl.Visible = false;
                        }
                        this.labelInfoPathNotInstalled.Visible = false;
                        this.labelNoDocumentAvailable.Visible = true;
                        break;
                    case UIStatesForm.DocumentReadMode:
                    case UIStatesForm.DocumentEditMode:
                        this.Enabled = true;
                        if (this.formControl != null)
                        {
                            this.formControl.Visible = true;
                        }
                        this.labelInfoPathNotInstalled.Visible = false;
                        this.labelNoDocumentAvailable.Visible = false;
                        break;
                }
            }
            else
            {
                this.labelInfoPathNotInstalled.Visible = true;
            }
        }

        internal void InitReadOnlyFlag()
        {
            if (this.IsInitialReadOnly == true)
                this.ReadOnly = true;
            else this.ReadOnly = false;
        }

        private bool IsInitialReadOnly
        {
            get
            {
                return
                    (string.Compare(this.formControl.
                        XmlForm.ViewInfos.Default.Name,
                        READONLY_VIEW_NAME,
                        true,
                        CultureInfo.CurrentCulture) == 0);
            }
        }

        #endregion

        private void InfoPathUserControl_Load(object sender, EventArgs e)
        {

        }

        private void labelNoDocumentAvailable_Click(object sender, EventArgs e)
        {

        }
    }
}

第五，为用户控件添加注册事件

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using Microsoft.Office.InfoPath;
using System.IO;
using System.Reflection;
using System.Threading;
using System.Xml.XPath;
using System.Security.Permissions;
using System.Globalization;
using System.Runtime.InteropServices;

namespace FJGISDraw
{
public partial class InfoPathUserControl : UserControl
{
    #region class InfoPathInitEventHandler 

    internal class InfoPathInitEventHandler : IInitEventHandler
    {
        private InfoPathInitEventHandler() { }

        FormControl formControl;
        bool internalStartupDeclared;

        private InfoPathInitEventHandler(
            FormControl formControl)
        {
            this.formControl = formControl;
        }

        internal static InfoPathInitEventHandler CreateInstance(
            FormControl formControl)
        {
            return new InfoPathInitEventHandler(
                        formControl);
        }


        #region IInitEventHandler Members

        public void InitEventHandler(
            object sender,
            XmlForm xmlForm,
            out Microsoft.Office.Interop.InfoPath.XdReadOnlyViewMode
                viewsReadOnlyMode)
        {
            viewsReadOnlyMode =
                Microsoft.Office.Interop.InfoPath.XdReadOnlyViewMode.xdDefault;

            if (!internalStartupDeclared)
            {
                this.formControl.InternalStartup +=
                    new FormControl.EventHandler<EventArgs>(formControl_InternalStartup);
                internalStartupDeclared = true;
            }
        }

        void formControl_InternalStartup(object sender, EventArgs e)
        {
            this.formControl.EventManager.FormEvents.ContextChanged +=
                new ContextChangedEventHandler(FormEvents_ContextChanged);
            this.formControl.EventManager.FormEvents.ViewSwitched +=
                new ViewSwitchedEventHandler(FormEvents_ViewSwitched);
        }

        #endregion

        void FormEvents_ViewSwitched(object sender, ViewSwitchedEventArgs e)
        {
        }

        void FormEvents_ContextChanged(
            object sender,
            ContextChangedEventArgs e)
        {
        }
    }

    #endregion
}
}

第六，运行项目用户控件制作完成

第七，新建winform页面并将这个用户控件拖入窗体上，合适的调整大小

第八，为窗体写入后台代码，加载infopath模板与xml数据文件（我的项目中模板在本地文件夹，xml数据从数据库读取）

public FrmEquipForm()
        {
            InitializeComponent();
            this.infoPathUserControl1.InitInfoPathForm();
        }
        Stream sr = null;
        private void FrmEquipForm_Load(object sender, EventArgs e)
        {
            //得到数据流
           
        }
        public Stream FileToStream(string fileName)
        {
            // 打开文件 
            FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
            // 读取文件的 byte[] 
            byte[] bytes = new byte[fileStream.Length];
            fileStream.Read(bytes, 0, bytes.Length);
            fileStream.Close();
            // 把 byte[] 转换成 Stream 
            Stream stream = new MemoryStream(bytes);
            return stream;
        }
        static private void RefreshSwitchViewName(
           InfoPathUserControl InfoPathUserCtrl,
           Button buttonSwitchView)
        {
            buttonSwitchView.Text =
                "Switch view (Readonly is " +
                InfoPathUserCtrl.ReadOnly +
                ")";
        }

        static private void CreateDocument(
            InfoPathUserControl InfoPathUserCtrl,
            Stream info,
            Button buttonSetFieldValue,
            Button buttonSwitchView,
            string InfoPathTemplate)
        {
            InfoPathUserCtrl.CreateFormTemplate(
                new Uri(
                    Path.Combine(
                        System.Environment.CurrentDirectory,
                        InfoPathTemplate)),info);

            buttonSetFieldValue.Enabled = true;
            buttonSwitchView.Enabled = true;
            RefreshSwitchViewName(
                InfoPathUserCtrl,
                buttonSwitchView);
        }

        static private void SetFieldValue(InfoPathUserControl InfoPathUserControl)
        {
            InfoPathUserControl.SetFieldValue(
                "name", System.Environment.UserName);
        }

        static private void SwitchView(
            InfoPathUserControl InfoPathUserCtrl,
            Button buttonSwitchView)
        {
            InfoPathUserCtrl.SwitchView();
            RefreshSwitchViewName(
                InfoPathUserCtrl,
                buttonSwitchView);
        }

        #region Event handlers for 1st document instance + buttons

        private void buttonCreateDocument_Click(
            object sender, EventArgs e)
        {
            //sr = new FileStream(@"462.xml");
            sr = FileToStream(@"462.xml");
            CreateDocument(
                this.infoPathUserControl1,sr,
                this.buttonSetFieldValue,
                this.buttonSwitchView,
                @"diangan.xsn");
        }

        private void buttonSetFieldValue_Click(
            object sender, EventArgs e)
        {
            SetFieldValue(infoPathUserControl1);
        }

        private void buttonSwitchView_Click(
            object sender, EventArgs e)
        {
            SwitchView(
                this.infoPathUserControl1,
                this.buttonSwitchView);
        }

        #endregion

第九，大功告成，运行项目看下效果

发表于 2010-05-11 15:50 陈小强阅读(1442) 评论(1) 收藏举报