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();

}

}

}