c#操作word表格

最近由于工作需要，做了一些关于c#操作word文档方面的工作．主要是对word中表格的操作，以下是部分代码，关于操作不规则表格的．
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Configuration;
using System.IO;

using System.Reflection;
using System.Runtime.InteropServices ;
using System.Threading;

public void MakeMyTable(DataTable DT,string strFilePath)
  {
  
   string strEnd   = this.txtEnd.Text.Trim().ToString();
   string strStart = this.txtStart.Text.Trim().ToString();
//生成文档分页中的起始和终止页
   string strSign = "("+strStart + "-" + strEnd + ")";

   //杀掉所有word进程以保证速度
   //KillWordProcess();

   object Nothing = System.Reflection.Missing.Value;
   object missing = System.Reflection.Missing.Value;
   object filename= strFilePath; 

   Word.Application wordApp=new Word.ApplicationClass();
   Word.Document wordDoc=wordApp.Documents.Add(ref Nothing,ref Nothing,ref Nothing,ref Nothing);

   try
   {
    //生成过程中屏蔽返回按扭，不允许中途停止
    Button2.Enabled = false;
    #region 生成文档
    //设置文档宽度
    wordApp.Selection.PageSetup.LeftMargin  = wordApp.CentimetersToPoints(float.Parse("2"));
    wordApp.ActiveWindow.ActivePane.HorizontalPercentScrolled = 11 ;
    wordApp.Selection.PageSetup.RightMargin = wordApp.CentimetersToPoints(float.Parse("2"));

    Object start = Type.Missing;
    Object end = Type.Missing;
    Object unit = Type.Missing;
    Object count = Type.Missing;
    wordDoc.Range(ref start, ref end).Delete(ref unit, ref count);

    object rng = Type.Missing;
    string strInfo = this.txtNameCh.Text.ToString()+"明细表"+strSign+"\r\n";
    start = 0;
    end = 0;
    wordDoc.Range(ref start, ref end).InsertBefore(strInfo);
    wordDoc.Range(ref start, ref end).Font.Name = "Verdana";
    wordDoc.Range(ref start, ref end).Font.Size = 20;
    wordDoc.Range(ref start, ref end).ParagraphFormat.Alignment = Word.WdParagraphAlignment.wdAlignParagraphCenter;

    start = 8;
    end = strInfo.Length;
    wordDoc.Range(ref start, ref end).InsertParagraphAfter();//插入回车

    if(DT.Rows.Count>0)
    {
     //存在数据项
     //添加一个表格
     object missingValue = Type.Missing;
     object location = strInfo.Length; //注：若location超过已有字符的长度将会出错。一定要比"明细表"串多一个字符
     Word.Range rng2 = wordDoc.Range(ref location, ref location);

     wordDoc.Tables.Add(rng2, 13, 6, ref missingValue, ref missingValue);
     wordDoc.Tables.Item(1).Rows.HeightRule = Word.WdRowHeightRule.wdRowHeightAtLeast;
     wordDoc.Tables.Item(1).Rows.Height = wordApp.CentimetersToPoints(float.Parse("0.8"));
     wordDoc.Tables.Item(1).Range.Font.Size = 10;
     wordDoc.Tables.Item(1).Range.Font.Name = "宋体";
     wordDoc.Tables.Item(1).Range.ParagraphFormat.Alignment = Word.WdParagraphAlignment.wdAlignParagraphCenter;
     wordDoc.Tables.Item(1).Range.Cells.VerticalAlignment = Word.WdCellVerticalAlignment.wdCellAlignVerticalCenter;
     //设置表格样式
     wordDoc.Tables.Item(1).Borders.Item(Word.WdBorderType.wdBorderLeft).LineStyle = Word.WdLineStyle.wdLineStyleSingle;
     wordDoc.Tables.Item(1).Borders.Item(Word.WdBorderType.wdBorderLeft).LineWidth = Word.WdLineWidth.wdLineWidth050pt;
     wordDoc.Tables.Item(1).Borders.Item(Word.WdBorderType.wdBorderLeft).Color = Word.WdColor.wdColorAutomatic;
    
     wordDoc.Tables.Item(1).Borders.Item(Word.WdBorderType.wdBorderTop).LineStyle = Word.WdLineStyle.wdLineStyleSingle;
     wordDoc.Tables.Item(1).Borders.Item(Word.WdBorderType.wdBorderTop).LineWidth = Word.WdLineWidth.wdLineWidth050pt;
     wordDoc.Tables.Item(1).Borders.Item(Word.WdBorderType.wdBorderTop).Color = Word.WdColor.wdColorAutomatic;

     wordDoc.Tables.Item(1).Borders.Item(Word.WdBorderType.wdBorderBottom).LineStyle = Word.WdLineStyle.wdLineStyleSingle;