WordOperate

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
namespace Common
{
    public class WordOperate : IDisposable
    {
        private Microsoft.Office.Interop.Word._Application _app;
        private Microsoft.Office.Interop.Word._Document _doc;
        object _nullobj = System.Reflection.Missing.Value;
        /// <summary>
        /// 关闭Word进程
        /// </summary>
        public void KillWinword()
        {
            var p = Process.GetProcessesByName("WINWORD");
            if (p.Any()) p[0].Kill();
        }
        /// <summary>
        /// 打开word文档
        /// </summary>
        /// <param name="filePath"></param>
        public void Open(string filePath)
        {
            //_app = new Microsoft.Office.Interop.Word.ApplicationClass();//原版
            _app = new Microsoft.Office.Interop.Word.Application();
            object file = filePath;
            _doc = _app.Documents.Open(
                 ref file, ref _nullobj, ref _nullobj,
                 ref _nullobj, ref _nullobj, ref _nullobj,
                 ref _nullobj, ref _nullobj, ref _nullobj,
                 ref _nullobj, ref _nullobj, ref _nullobj,
                 ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj);
        }

        /// <summary>
        /// 替换word中的文字
        /// </summary>
        /// <param name="strOld">查找的文字</param>
        /// <param name="strNew">替换的文字</param>
        public void Replace(string strOld, string strNew)
        {
            //替换全局Document
            _app.Selection.Find.ClearFormatting();
            _app.Selection.Find.Replacement.ClearFormatting();
            _app.Selection.Find.Text = strOld;
            _app.Selection.Find.Replacement.Text = strNew;
            object objReplace = Microsoft.Office.Interop.Word.WdReplace.wdReplaceAll;
            _app.Selection.Find.Execute(ref _nullobj, ref _nullobj, ref _nullobj,
                                       ref _nullobj, ref _nullobj, ref _nullobj,
                                       ref _nullobj, ref _nullobj, ref _nullobj,
                                       ref _nullobj, ref objReplace, ref _nullobj,
                                       ref _nullobj, ref _nullobj, ref _nullobj);
            //替换页脚的字
            foreach (Microsoft.Office.Interop.Word.Section wordSection in _doc.Sections)
            {
                Microsoft.Office.Interop.Word.Range footerRange = wordSection.Footers[Microsoft.Office.Interop.Word.WdHeaderFooterIndex.wdHeaderFooterPrimary].Range;
                footerRange.Find.ClearFormatting();
                footerRange.Find.Replacement.ClearFormatting();
                footerRange.Find.Text = strOld;
                footerRange.Find.Replacement.Text = strNew;
                footerRange.Find.Execute(ref _nullobj, ref _nullobj, ref _nullobj,
                                       ref _nullobj, ref _nullobj, ref _nullobj,
                                       ref _nullobj, ref _nullobj, ref _nullobj,
                                       ref _nullobj, ref objReplace, ref _nullobj,
                                       ref _nullobj, ref _nullobj, ref _nullobj);
            }
            //替换页眉的字
            foreach (Microsoft.Office.Interop.Word.Section section in _doc.Sections)
            {
                Microsoft.Office.Interop.Word.Range headerRange = section.Headers[Microsoft.Office.Interop.Word.WdHeaderFooterIndex.wdHeaderFooterPrimary].Range;
                headerRange.Find.ClearFormatting();
                headerRange.Find.Replacement.ClearFormatting();
                headerRange.Find.Text = strOld;
                headerRange.Find.Replacement.Text = strNew;
                headerRange.Find.Execute(ref _nullobj, ref _nullobj, ref _nullobj,
                                       ref _nullobj, ref _nullobj, ref _nullobj,
                                       ref _nullobj, ref _nullobj, ref _nullobj,
                                       ref _nullobj, ref objReplace, ref _nullobj,
                                       ref _nullobj, ref _nullobj, ref _nullobj);
            }
            //文本框
            Microsoft.Office.Interop.Word.StoryRanges storyRanges = _doc.StoryRanges;
            foreach (Microsoft.Office.Interop.Word.Range range in storyRanges)
            {
                Microsoft.Office.Interop.Word.Range rangeFlag = range;
                if (Microsoft.Office.Interop.Word.WdStoryType.wdTextFrameStory == rangeFlag.StoryType)
                {
                    while (rangeFlag != null)
                    {
                        rangeFlag.Find.ClearFormatting();
                        rangeFlag.Find.Replacement.ClearFormatting();
                        rangeFlag.Find.Text = strOld;
                        rangeFlag.Find.Replacement.Text = strNew;
                        rangeFlag.Find.Execute(ref _nullobj, ref _nullobj, ref _nullobj,
                                               ref _nullobj, ref _nullobj, ref _nullobj,
                                               ref _nullobj, ref _nullobj, ref _nullobj,
                                               ref _nullobj, ref objReplace, ref _nullobj,
                                               ref _nullobj, ref _nullobj, ref _nullobj);
                        rangeFlag = range.NextStoryRange;
                    }
                }
            }

        }
        /// <summary>
        /// 保存
        /// </summary>
        public void Save(bool disposet = true)
        {
            if (disposet == false)
            {
                _doc.Save();
            }
            else
            {
                this.Save(false);
                this.Dispose();
                this.KillWinword();
            }
        }
        /// <summary>
        /// 退出
        /// </summary>
        public void Dispose()
        {
            _doc.Close(ref _nullobj, ref _nullobj, ref _nullobj);
            _app.Quit(ref _nullobj, ref _nullobj, ref _nullobj);
        }
    }
}