C#合并多个结构一样的Excel
有多个结构一样的Excel,带复杂表头需要合并为一个,且去掉多余的表头数据,可以用COM组件来读取每个Excel表格的Range来合并到一个新的表格中。样例如图
有很多相同格式的表格,合并代码如下:
- using System;
- using System.Collections.Generic;
- using System.Text;
- using System.Reflection;
- using Excel = Microsoft.Office.Interop.Excel;
- namespace ConsoleApplication20
- {
- //添加引用-COM-MicroSoft Excel 11.0 Object Libery
- class Program
- {
- static void Main( string [] args)
- {
- //M为表格宽度标志(Excel中的第M列为最后一列),3为表头高度
- MergeExcel.DoMerge( new string []
- {
- @ "E:/excel/类型A/公司A.xls" ,
- @ "E:/excel/类型A/公司B.xls"
- },
- @ "E:/excel/类型A/合并测试.xls" , "M" , 3);
- MergeExcel.DoMerge( new string []
- {
- @ "E:/excel/类型B/统计表A.xls" ,
- @ "E:/excel/类型B/统计表B.xls"
- },
- @ "E:/excel/类型B/合并测试.xls" , "I" , 4);
- }
- }
- public class MergeExcel
- {
- Excel.Application app = new Microsoft.Office.Interop.Excel.ApplicationClass();
- //保存目标的对象
- Excel.Workbook bookDest = null ;
- Excel.Worksheet sheetDest = null ;
- //读取数据的对象
- Excel.Workbook bookSource = null ;
- Excel.Worksheet sheetSource = null ;
- string [] _sourceFiles = null ;
- string _destFile = string .Empty;
- string _columnEnd = string .Empty;
- int _headerRowCount = 1;
- int _currentRowCount = 0;
- public MergeExcel( string [] sourceFiles, string destFile, string columnEnd, int headerRowCount)
- {
- bookDest = (Excel.WorkbookClass)app.Workbooks.Add(Missing.Value);
- sheetDest = bookDest.Worksheets.Add(Missing.Value, Missing.Value, Missing.Value, Missing.Value) as Excel.Worksheet;
- sheetDest.Name = "Data" ;
- _sourceFiles = sourceFiles;
- _destFile = destFile;
- _columnEnd = columnEnd;
- _headerRowCount = headerRowCount;
- }
- /// <summary>
- /// 打开工作表
- /// </summary>
- /// <param name="fileName"></param>
- void OpenBook( string fileName)
- {
- bookSource = app.Workbooks._Open(fileName, Missing.Value, Missing.Value, Missing.Value, Missing.Value
- , Missing.Value, Missing.Value, Missing.Value, Missing.Value
- , Missing.Value, Missing.Value, Missing.Value, Missing.Value);
- sheetSource = bookSource.Worksheets[1] as Excel.Worksheet;
- }
- /// <summary>
- /// 关闭工作表
- /// </summary>
- void CloseBook()
- {
- bookSource.Close( false , Missing.Value, Missing.Value);
- }
- /// <summary>
- /// 复制表头
- /// </summary>
- void CopyHeader()
- {
- Excel.Range range = sheetSource.get_Range( "A1" , _columnEnd + _headerRowCount.ToString());
- range.Copy(sheetDest.get_Range( "A1" ,Missing.Value));
- _currentRowCount += _headerRowCount;
- }
- /// <summary>
- /// 复制数据
- /// </summary>
- void CopyData()
- {
- int sheetRowCount = sheetSource.UsedRange.Rows.Count;
- Excel.Range range = sheetSource.get_Range( string .Format( "A{0}" , _headerRowCount + 1), _columnEnd + sheetRowCount.ToString());
- range.Copy(sheetDest.get_Range( string .Format( "A{0}" , _currentRowCount + 1), Missing.Value));
- _currentRowCount += range.Rows.Count;
- }
- /// <summary>
- /// 保存结果
- /// </summary>
- void Save()
- {
- bookDest.Saved = true ;
- bookDest.SaveCopyAs(_destFile);
- }
- /// <summary>
- /// 退出进程
- /// </summary>
- void Quit()
- {
- app.Quit();
- }
- /// <summary>
- /// 合并
- /// </summary>
- void DoMerge()
- {
- bool b = false ;
- foreach ( string strFile in _sourceFiles)
- {
- OpenBook(strFile);
- if (b == false )
- {
- CopyHeader();
- b = true ;
- }
- CopyData();
- CloseBook();
- }
- Save();
- Quit();
- }
- /// <summary>
- /// 合并表格
- /// </summary>
- /// <param name="sourceFiles">源文件</param>
- /// <param name="destFile">目标文件</param>
- /// <param name="columnEnd">最后一列标志</param>
- /// <param name="headerRowCount">表头行数</param>
- public static void DoMerge( string [] sourceFiles, string destFile, string columnEnd, int headerRowCount)
- {
- new MergeExcel(sourceFiles, destFile, columnEnd, headerRowCount).DoMerge();
- }
- }
- }