using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Office.Interop.Word;
using System.Reflection;
using System.Data.SqlClient;
using System.Web;
using System.Data;

namespace MyPublicClass
{
    /// <summary>
    /// 报表名称，和模板名称一致， 该枚举可无限扩展
    /// </summary>
    public enum WordTemplateType
    {
        管道吹扫清洗检验记录,
    }
    /// <summary>
    /// 生成word报表
    /// yiyanxiyin@qq.com
    /// 2012-2-28
    /// </summary>
    public class WordReport
    {
        /// <summary>
        /// 生成word报表文件
        /// </summary>
        /// <param name="wordTemplate">word模板</param>
        /// <param name="parameter">参数, 自定任意参数</param>
        /// <returns>生成的文件名</returns>
        public static string ExportDataToWord(WordTemplateType wordTemplate, object[] parameter)
        {
            Microsoft.Office.Interop.Word.Document wDoc = null;
            Microsoft.Office.Interop.Word.Application wApp = null;

            string filePath = "", appPath;
            filePath = System.Web.HttpContext.Current.Server.MapPath("~/ExcelTemplate/" + wordTemplate.ToString() + ".doc");
            OpenWordDoc(filePath, ref wDoc,ref wApp);
            try
            {
                //扩展该switch定制报表
                switch (wordTemplate)
                {
                    case WordTemplateType.管道吹扫清洗检验记录:
                        Export_ClearAndCheckRecord(wApp,wDoc, parameter);
                        
                        break;
                }

                filePath = filePath.Substring(0, filePath.Length - 4);
                filePath = filePath.Replace("ExcelTemplate", "ExcelFiles");

                filePath = getFileName(filePath, out appPath);
                wDoc.SaveAs(filePath);
            }
            finally
            {
                if (wDoc != null)
                {
                    wDoc.Close();
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(wDoc);
                    wDoc = null;
                }
                if (wApp != null)
                {
                    wApp.Quit();
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(wApp);
                    wApp = null;
                }
                GC.Collect();
            }
            return appPath;
        }
        private static void OpenWordDoc(string FileName, ref Microsoft.Office.Interop.Word.Document wDoc, ref  Microsoft.Office.Interop.Word.Application WApp)
        {
            if (FileName == "") return;
            Microsoft.Office.Interop.Word.Document thisDocument = null;
            Microsoft.Office.Interop.Word.FormFields formFields = null;
            Microsoft.Office.Interop.Word.Application thisApplication = new Microsoft.Office.Interop.Word.ApplicationClass();
            thisApplication.Visible = true;
            thisApplication.Caption = "";
            thisApplication.Options.CheckSpellingAsYouType = false;
            thisApplication.Options.CheckGrammarAsYouType = false;

            Object filename = FileName;
            Object ConfirmConversions = false;
            Object ReadOnly = true;
            Object AddToRecentFiles = false;

            Object PasswordDocument = System.Type.Missing;
            Object PasswordTemplate = System.Type.Missing;
            Object Revert = System.Type.Missing;
            Object WritePasswordDocument = System.Type.Missing;
            Object WritePasswordTemplate = System.Type.Missing;
            Object Format = System.Type.Missing;
            Object Encoding = System.Type.Missing;
            Object Visible = System.Type.Missing;
            Object OpenAndRepair = System.Type.Missing;
            Object DocumentDirection = System.Type.Missing;
            Object NoEncodingDialog = System.Type.Missing;
            Object XMLTransform = System.Type.Missing;

            Microsoft.Office.Interop.Word.Document wordDoc =
             thisApplication.Documents.Open(ref filename, ref ConfirmConversions,
             ref ReadOnly, ref AddToRecentFiles, ref PasswordDocument, ref PasswordTemplate,
             ref Revert, ref WritePasswordDocument, ref WritePasswordTemplate, ref Format,
             ref Encoding, ref Visible, ref OpenAndRepair, ref DocumentDirection,
             ref NoEncodingDialog, ref XMLTransform);

            thisDocument = wordDoc;
            wDoc = wordDoc;
            WApp = thisApplication;
            formFields = wordDoc.FormFields;

        }

        private static string getFileName(string fileName, out string appFilePath)
        {
            System.DateTime currentTime = System.DateTime.Now;
            Random rd = new Random();
            string TempFileName = fileName + currentTime.ToString("yyyyMMddHHmm") + rd.Next().ToString() + ".doc";
            string CurrentPath = System.Web.HttpContext.Current.Server.MapPath("~/ExcelFiles/");
            string CurrentMonth = currentTime.ToString("yyyyMM");
            if (!System.IO.Directory.Exists(CurrentPath + "\\" + CurrentMonth))
            {
                System.IO.Directory.CreateDirectory(CurrentPath + "\\" + CurrentMonth);
            }
            System.IO.FileInfo fi = new System.IO.FileInfo(TempFileName);
            appFilePath = (HttpContext.Current.Request.ApplicationPath.EndsWith("/") ? HttpContext.Current.Request.ApplicationPath : HttpContext.Current.Request.ApplicationPath + "/") + "ExcelFiles/" + CurrentMonth + "/" + fi.Name;
            appFilePath.Replace("//", "/");
            return CurrentPath + CurrentMonth + "\\" + fi.Name;
        }

        /// <summary>
        /// 管道吹扫清洗检验记录（可生成多页，每页12行）
        /// </summary>
        /// <param name="wSheet"></param>
        /// <param name="wSheet"></param>
        /// <param name="parameter">参数, 自定任意参数，在此函数中解析</param>
        private static void Export_ClearAndCheckRecord(Application wApp, Document wDoc, object[] parameter)
        {
            string projectName = parameter[0].ToString();
            string cellProject = parameter[1].ToString();
            string packetNumber = parameter[2].ToString();

            System.Data.DataTable detailDataTable = (System.Data.DataTable)parameter[3];

            wDoc.Bookmarks["ProjectName"].Range.Text = projectName;
            wDoc.Bookmarks["CellProject"].Range.Text = cellProject;
            wDoc.Bookmarks["PacketNumber"].Range.Text = packetNumber;

            if (detailDataTable.Rows.Count == 0) return;

            //计算需要几个表格（每个表格显示12条数据）
            int tablecount = detailDataTable.Rows.Count / 12 + (detailDataTable.Rows.Count % 12 == 0 ? 0 : 1);
            //生成足够多的空表格
            while (tablecount > 1)
            {
                wDoc.Tables[1].Select();
                wApp.Selection.Copy();
                object mymissing = System.Reflection.Missing.Value;
                object myunit = Microsoft.Office.Interop.Word.WdUnits.wdStory;
                wApp.Selection.EndKey(ref myunit, ref mymissing);
                object pBreak = (int)Microsoft.Office.Interop.Word.WdBreakType.wdPageBreak;
                wApp.Selection.InsertBreak(ref pBreak);
                wApp.Selection.Paste();

                tablecount--;
            }

            int i = 0;

            foreach (DataRow dr in detailDataTable.Rows)
            {
                wDoc.Tables[i / 12 + 1].Cell(i % 12 + 9, 1).Range.Text = dr["pipelinecode"].ToString();
                wDoc.Tables[i / 12 + 1].Cell(i % 12 + 9, 2).Range.Text = dr["material"].ToString();

                i++;
            }
        }
        //在此参考以上方法扩展自定报表

    }
}

生成结果：