利用COM組件實現對WORD書簽處寫入值

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Office.Interop.Word;
using System.Windows.Forms;
using System.IO;
using System.Reflection;

namespace HustCAD.IntePLM.Win.BatchEnterWinUI
{
    public class SignWord
    {
        //Word應用程式變數   
        _Application wordApp;
        _Document wordDoc;
        public bool signWord(string filePath, string bookMark, string code)
        {
            bool success = false;
            try
            {
                //由於使用的是COM庫，因此有許多變數需要用Missing.Value代替
                wordApp = new ApplicationClass();
                object missing = System.Reflection.Missing.Value;
                object templateName = filePath;
                wordDoc = wordApp.Documents.Open(ref templateName, ref missing,
           ref missing, ref missing, ref missing, ref missing, ref missing,
           ref missing, ref missing, ref missing, ref missing, ref missing,
           ref missing, ref missing, ref missing, ref missing);
                if (wordApp.ActiveDocument.Bookmarks.Exists(bookMark))
                {

                    object bk = (object)bookMark;
                    wordApp.ActiveDocument.Bookmarks.get_Item(ref bk).Select();
                    wordApp.Selection.TypeText(code);
                    //關閉wordDoc，wordApp對象
                    object SaveChanges = WdSaveOptions.wdSaveChanges;
                    object OriginalFormat = WdOriginalFormat.wdOriginalDocumentFormat;
                    object RouteDocument = false;
                    wordDoc.Save();
                    wordDoc.Close(ref SaveChanges, ref OriginalFormat, ref RouteDocument);
                    wordApp.Quit(ref SaveChanges, ref OriginalFormat, ref RouteDocument);
                    wordDoc = null;
                    wordApp = null;
                    success = true;
                    return true;
                }
                else
                {
                    System.IO.File.AppendAllText(System.IO.Path.Combine(GetCurrentPath(), "signWordlog.txt"), "文件" + filePath + "簽入編號失敗,書簽不存在!  " + DateTime.Now.ToString("yyyy-MM-dd-hh:mm:ss"));

                    //關閉wordDoc，wordApp對象
                    object SaveChanges = WdSaveOptions.wdSaveChanges;
                    object OriginalFormat = WdOriginalFormat.wdOriginalDocumentFormat;
                    object RouteDocument = false;
                    wordDoc.Save();
                    wordDoc.Close(ref SaveChanges, ref OriginalFormat, ref RouteDocument);
                    wordApp.Quit(ref SaveChanges, ref OriginalFormat, ref RouteDocument);
                    wordDoc = null;
                    wordApp = null;
                    return false;
                }
            }
            catch (Exception e)
            {
                object SaveChanges = WdSaveOptions.wdSaveChanges;
                object OriginalFormat = WdOriginalFormat.wdOriginalDocumentFormat;
                object RouteDocument = false;
                //wordDoc.Save();
                wordDoc.Close(ref SaveChanges, ref OriginalFormat, ref RouteDocument);
                wordApp.Quit(ref SaveChanges, ref OriginalFormat, ref RouteDocument);

                System.IO.File.AppendAllText(System.IO.Path.Combine(GetCurrentPath(), "signWordlog.txt"), "文件" + filePath + "簽入編號失敗！ ，錯誤:" + e.Message.ToString() + "。  " + DateTime.Now.ToString("yyyy-MM-dd-hh:mm:ss"));
                wordDoc = null;
                wordApp = null;
                return false;


            }
            finally
            {
                try
                {
                    object SaveChanges = WdSaveOptions.wdSaveChanges;
                    object OriginalFormat = WdOriginalFormat.wdOriginalDocumentFormat;
                    object RouteDocument = false;
                    if (wordDoc!=null&&success==false )
                    {
                        wordDoc.Close(ref SaveChanges, ref OriginalFormat, ref RouteDocument);
                        wordDoc = null;
                    }
                    if (wordApp != null && success == false)
                    {
                        wordApp.Quit(ref SaveChanges, ref OriginalFormat, ref RouteDocument);
                        wordApp = null;
                    }
                    GC.Collect();
                    GC.WaitForPendingFinalizers();
                }
                catch { }
            }

        }
        /// <summary>
        /// 得到當前程式的路徑
        /// </summary>
        /// <returns></returns>
        static public string GetCurrentPath()
        {
            string asstring = Assembly.GetExecutingAssembly().Location;
            string[] aa = asstring.Split('\\');
            string path = string.Empty;
            foreach (string var in aa)
            {
                if (var != aa[aa.Length - 1])
                    path += var + @"\";
            }
            return path;
        }
    }
}