C#对Word文档的部分操作笔记

　　C#对word文档的部分操作，主要是在Web服务中对word进行的操作：

使用的Microsoft.Office.Interop.Word.dll (12版)对Office2003进行的一些操作。

在进行word文档操作前先使用：

using Microsoft.Office.Interop.Word;

定义下这几个变量：

ublic Application m_App = null;      //表示一个word应用程序
public Document m_Doc = null;         //表示一个word文档
private object m_NullObj = System.Reflection.Missing.Value;//参数

打开一个word文档:

        /// <summary>
        /// 打开一个word文档，输入文件完整路径，成功返回true
        /// </summary>
        /// <returns>bool</returns>
        public bool OpenWordDoc(string path)
        {
            try
            {
                m_App = new Application();
                object fileObj = path;
                //打开指定文件（不同版本的COM参数个数有差异，一般而言除第一个外都用nullobj就行了）
                m_Doc = m_App.Documents.Open(
                    ref fileObj, ref m_NullObj, ref m_NullObj,
                    ref m_NullObj, ref m_NullObj, ref m_NullObj,
                    ref m_NullObj, ref m_NullObj, ref m_NullObj,
                    ref m_NullObj, ref m_NullObj, ref m_NullObj,
                    ref m_NullObj, ref m_NullObj, ref m_NullObj,
                    ref m_NullObj);
                return true;
            }
            catch (System.Exception ex)
            {
                if (m_Doc != null)
                {
                    WdSaveOptions saveChange = WdSaveOptions.wdDoNotSaveChanges;
                    //关闭文件 不保存
                    m_Doc.Close(saveChange, ref m_NullObj, ref m_NullObj);
                }
                if (m_App != null)
                {
                    //关闭COM
                    m_App.Quit(ref m_NullObj, ref m_NullObj, ref m_NullObj);
                }
                return false;
            }
        }

关闭word文档：

        public bool CloseWordDoc()
        {
            try
            {
                WdSaveOptions saveChange = WdSaveOptions.wdDoNotSaveChanges;

                //关闭文件 不保存
                m_Doc.Close(saveChange, ref m_NullObj, ref m_NullObj);
                //关闭COM
                m_App.Quit(ref m_NullObj, ref m_NullObj, ref m_NullObj);

                return true;
            }
            catch (System.Exception ex)
            {
                return false;
            }
        }

获取文档内容：

        /// <summary>
        /// 获取word文档的文本内容
        /// </summary>
        /// <returns></returns>
        public string GetContent()
        {
            string ConText = m_Doc.Content.Text;
            return ConText;
        }

获取word文档的中总页面数：

        /// <summary>
        /// 获取word文档的中总页面数
        /// </summary>
        /// <returns></returns>
        public int GetPagesCount()
        {
            WdStatistic stat = WdStatistic.wdStatisticPages;
            int num = m_Doc.ComputeStatistics(stat, ref m_NullObj);
            return num;
        }

生成并获取文档摘要：

        /// <summary>
        /// 生成并获取文档摘要
        /// </summary>
        /// <returns></returns>
        public string GetSummary()
        {
            string OutText = null;
            object Length = "25%";
            object Mode = WdSummaryMode.wdSummaryModeInsert;

            bool typ = true;
            
            Range Rg = m_Doc.AutoSummarize(20, Mode, true);

            OutText = Rg.Text;

            if (OutText == null)
            {
                return "null";
            }
            else
            {
                return OutText;
            }
        }

获取文档每一页的内容：（在这里尤其是需要注意在获取最后一页内容时的方法）

PageText即为每一页的内容

                object What = Microsoft.Office.Interop.Word.WdGoToItem.wdGoToPage;
                object Which = Microsoft.Office.Interop.Word.WdGoToDirection.wdGoToNext;
                object m_NullObj = System.Reflection.Missing.Value;
                object start = null;
                object end = null;
                object PageN = 1;
                //PagesCount 为文档页面总数
                start = WDoc.m_App.Selection.GoTo(ref What, ref Which, ref m_NullObj, ref PageN).Start;

                for (int i = 1; i <= PagesCount; i++)
                {
                    string PageText = "";
                    
                    //获取文档的每一页的内容
                    //最后一页的获取方法
                    if (i==PagesCount)
                    {
                        PageN = i;
                        start = WDoc.m_App.Selection.GoTo(ref What, ref Which, ref m_NullObj, ref PageN).Start;
                        end = WDoc.m_App.Selection.EndKey(Microsoft.Office.Interop.Word.WdUnits.wdStory, 
                                                          Microsoft.Office.Interop.Word.WdMovementType.wdExtend);
                        PageText = WDoc.m_App.Selection.Range.Text;
                    } 
                    else
                    {
                        end = WDoc.m_Doc.ActiveWindow.Selection.GoToNext(Microsoft.Office.Interop.Word.WdGoToItem.wdGoToPage).Start;
                        Microsoft.Office.Interop.Word.Range Rg = WDoc.m_Doc.Range(ref start, ref end);
                        PageText = Rg.Text;
                        start = end;
                    }
                }