NPOI 1.2.5复制行(包括格式)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NPOI.HSSF.UserModel;
using NPOI.SS.UserModel;
using NPOI.SS.Util;

namespace Helper
{
    public class NPOIHelper
    {
        /// <summary>
        /// 复制行格式并插入指定行数
        /// </summary>
        /// <param name="sheet">当前sheet</param>
        /// <param name="startRowIndex">起始行位置</param>
        /// <param name="sourceRowIndex">模板行位置</param>
        /// <param name="insertCount">插入行数</param>
        public static void CopyRow(ISheet sheet, int startRowIndex, int sourceRowIndex, int insertCount)
        {
            IRow sourceRow = sheet.GetRow(sourceRowIndex);
            int sourceCellCount = sourceRow.Cells.Count;

            //1. 批量移动行,清空插入区域
            sheet.ShiftRows(startRowIndex, //开始行
                            sheet.LastRowNum, //结束行
                            insertCount, //插入行总数
                            true,        //是否复制行高
                            false        //是否重置行高
                            );

            int startMergeCell = -1; //记录每行的合并单元格起始位置
            for (int i = startRowIndex; i < startRowIndex + insertCount; i++)
            {
                IRow targetRow = null;
                ICell sourceCell = null;
                ICell targetCell = null;

                targetRow = sheet.CreateRow(i);
                targetRow.Height = sourceRow.Height;//复制行高

                for (int m = sourceRow.FirstCellNum; m < sourceRow.LastCellNum; m++)
                {
                    sourceCell = sourceRow.GetCell(m);
                    if (sourceCell == null)
                        continue;
                    targetCell = targetRow.CreateCell(m);
                    targetCell.CellStyle = sourceCell.CellStyle;//赋值单元格格式
                    targetCell.SetCellType(sourceCell.CellType);

                    //以下为复制模板行的单元格合并格式
                    if (sourceCell.IsMergedCell)
                    {
                        if (startMergeCell <= 0)
                            startMergeCell = m;
                        else if (startMergeCell > 0 && sourceCellCount == m + 1)
                        {
                            sheet.AddMergedRegion(new CellRangeAddress(i, i, startMergeCell, m));
                            startMergeCell = -1;
                        }
                    }
                    else
                    {
                        if (startMergeCell >= 0)
                        {
                            sheet.AddMergedRegion(new CellRangeAddress(i, i, startMergeCell, m - 1));
                            startMergeCell = -1;
                        }
                    }
                }
            }
        }
    }
}

参考http://www.cnblogs.com/kingangWang/archive/2011/08/31/2161319.html