利用COM组件实现对WORD书签处写入值

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应用程序变量   
        _Application wordApp;
        _Document wordDoc;
        public bool signWord(string filePath, string bookMark, string code)
        {
            bool success = false;
            try
            {
                //由于使用的是COM库，因此有许多变量需要用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);
                    //关闭wordDoc，wordApp对象
                    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 + "签入编号失败,书签不存在!  " + DateTime.Now.ToString("yyyy-MM-dd-hh:mm:ss"));

                    //关闭wordDoc，wordApp对象
                    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 + "签入编号失败！ ，错误:" + 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>
        /// 得到当前程序的路径
        /// </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;
        }
    }
}