通过excel可识别的xml结构直接生成xls文件

上一片文章演示了如何根据简单的excel文件结构直接生成xls文件，如果涉及到合并，公式之类的复杂操作，可以使用xml结构来直接构造xls文件，比如生成如下所示文件



上图中D列和E列为公式，第4行为公式合计，7、8行为合并过的单元格。完整代码如下：

using
System;

using
System.Collections.Generic;

using
System.Text;

using
System.Xml;

namespace
ConsoleApplication17

{

class
Program

{

static

void
Main(
string
[] args)

{

ExcelWriter excel =
new
ExcelWriter();

excel.CreateSheet(
"XmlData"
);
//sheetName

//增加一列，默认可以不加

excel.CreateColumn(5, 100);

//新增表头行

excel.CreateRow();

excel.CreateCellString(
"Name"
);

excel.CreateCellString(
"Score1"
);

excel.CreateCellString(
"Score1"
);

excel.CreateCellString(
"Score0"
);

excel.CreateCellString(
"说明"
);

//新增两行数据

excel.CreateRow();

excel.CreateCellString(
"jinjazz"
);

excel.CreateCellNumber(100);

excel.CreateCellNumber(98);

excel.CreateCell(0,
"Number"
,
"RC[-2]+RC[-1]"
,1,1);
//公式，-2和-1代表当前cell的水平偏移量

excel.CreateCell(0,
"String"
,
"RC[-4]&/":/"&RC[-1]"
, 1, 1);
//公式

excel.CreateRow();

excel.CreateCellString(
"游客"
);

excel.CreateCellNumber(33);

excel.CreateCellNumber(14);

excel.CreateCell(0,
"Number"
,
"RC[-2]+RC[-1]"
, 1, 1);

excel.CreateCell(0,
"String"
,
"RC[-4]&/":/"&RC[-1]"
, 1, 1);

//新增汇总行

excel.CreateRow();

excel.CreateCellString(
"总计"
);

excel.CreateCell(0,
"Number"
,
"SUM(R[-2]C:R[-1]C)"
, 1, 1);
//公式，-2和-1代表cell的垂直偏移量

excel.CreateCell(0,
"Number"
,
"SUM(R[-2]C:R[-1]C)"
, 1, 1);

excel.CreateCell(0,
"Number"
,
"SUM(R[-2]C:R[-1]C)"
, 1, 1);

//增加三个空行

excel.CreateRow();

excel.CreateRow();

excel.CreateRow();

//增加一个合并过的单元格

excel.CreateCell(
"http://blog.csdn.net/jinjazz"
,
"String"
,
null
,2,5);

excel.Save(@
"c:/testData.xls"
);

}

}

public

class
ExcelWriter

{

string
ssns =
"urn:schemas-microsoft-com:office:spreadsheet"
;

string
xmlns =
"urn:schemas-microsoft-com:office:spreadsheet"
;

XmlDocument _doc =
new
XmlDocument();

XmlNode _currentSheet =
null
;

XmlNode _currentRow =
null
;

public
ExcelWriter()

{

//excel的xml模版，你需要了解xml的Attributes怎么用

StringBuilder sbody =
new
StringBuilder();

sbody.Append(
"<?xml version=/"1.0/"?>/n"
);

sbody.Append(
"<?mso-application progid=/"Excel.Sheet/"?>/n"
);

sbody.Append(
"<Workbook xmlns=/"urn:schemas-microsoft-com:office:spreadsheet/"/n"
);

sbody.Append(
"xmlns:o=/"urn:schemas-microsoft-com:office:office/"/n"
);

sbody.Append(
"xmlns:x=/"urn:schemas-microsoft-com:office:excel/"/n"
);

sbody.Append(
"xmlns:ss=/"urn:schemas-microsoft-com:office:spreadsheet/"/n"
);

sbody.Append(
"xmlns:html=/"http://www.w3.org/TR/REC-html40/">/n"
);

sbody.Append(
"<Styles>/n"
);

sbody.Append(
"<Style ss:ID=/"Default/" ss:Name=/"Normal/">/n"
);

sbody.Append(
"<Alignment ss:Vertical=/"Center/"/>/n"
);

sbody.Append(
"<Borders/>/n"
);

sbody.Append(
"<Font ss:FontName=/"宋体/" x:CharSet=/"134/" ss:Size=/"10/"/>/n"
);

sbody.Append(
"<Interior/>/n"
);

sbody.Append(
"<NumberFormat/>/n"
);

sbody.Append(
"<Protection/>/n"
);

sbody.Append(
"</Style>/n"
);

sbody.Append(
"</Styles>/n"
);

sbody.Append(
"</Workbook>/n"
);

_doc.LoadXml(sbody.ToString());

}

/// <summary>

/// 增加一个工作表

/// </summary>

/// <param name="sheetName">工作表名称</param>

public

void
CreateSheet(
string
sheetName)

{

System.Xml.XmlNode node = _doc.CreateNode(XmlNodeType.Element,
"Worksheet"
, ssns);

System.Xml.XmlAttribute xa = _doc.CreateAttribute(
"ss"
,
"Name"
, xmlns);

xa.Value = sheetName;

node.Attributes.Append(xa);

_doc.ChildNodes[2].AppendChild(node);

node.AppendChild(_doc.CreateNode(XmlNodeType.Element,
"Table"
, xmlns));

_currentSheet = node;

}

/// <summary>

/// 增加一行

/// </summary>

public

void
CreateRow()

{

System.Xml.XmlNode node = _doc.CreateNode(XmlNodeType.Element,
"Row"
, xmlns);

_currentSheet.ChildNodes[0].AppendChild(node);

_currentRow = node;

}

/// <summary>

/// 增加一列

/// </summary>

/// <param name="index">索引</param>

/// <param name="width">宽度</param>

public

void
CreateColumn(
int
index,
float
width)

{

System.Xml.XmlNode node = _doc.CreateNode(XmlNodeType.Element,
"Column"
, xmlns);

System.Xml.XmlAttribute xa = _doc.CreateAttribute(
"ss"
,
"Index"
, xmlns);

xa.Value = index.ToString();

node.Attributes.Append(xa);

xa = _doc.CreateAttribute(
"ss"
,
"Width"
, xmlns);

xa.Value = width.ToString();

node.Attributes.Append(xa);

_currentSheet.ChildNodes[0].AppendChild(node);

}

/// <summary>

/// 增加一个单元格

/// </summary>

/// <param name="value">值</param>

/// <param name="Type">类型</param>

/// <param name="Expression">公式</param>

/// <param name="rowSpan">跨行</param>

/// <param name="colSpan">跨列</param>

public

void
CreateCell(
object
value,
string
Type,
string
Expression,
int
rowSpan,
int
colSpan)

{

System.Xml.XmlAttribute xa =
null
;

System.Xml.XmlNode nodeCell = _doc.CreateNode(XmlNodeType.Element,
"Cell"
, xmlns);

_currentRow.AppendChild(nodeCell);

if
(!
string
.IsNullOrEmpty(Expression))

{

xa = _doc.CreateAttribute(
"ss"
,
"Formula"
, xmlns);

xa.Value =
"="
+ Expression;

nodeCell.Attributes.Append(xa);

}

if
(--colSpan > 0)

{

xa = _doc.CreateAttribute(
"ss"
,
"MergeAcross"
, xmlns);

xa.Value = colSpan.ToString();

nodeCell.Attributes.Append(xa);

}

if
(--rowSpan > 0)

{

xa = _doc.CreateAttribute(
"ss"
,
"MergeDown"
, xmlns);

xa.Value = rowSpan.ToString();

nodeCell.Attributes.Append(xa);

}

System.Xml.XmlNode nodeData = _doc.CreateNode(XmlNodeType.Element,
"Data"
, xmlns);

xa = _doc.CreateAttribute(
"ss"
,
"Type"
, xmlns);

xa.Value = Type;

nodeData.Attributes.Append(xa);

nodeData.InnerText = value.ToString();

nodeCell.AppendChild(nodeData);

}

/// <summary>

/// 增加一个数字单元格

/// </summary>

/// <param name="value"></param>

public

void
CreateCellNumber(
double
value)

{

CreateCell(value,
"Number"
,
null
, 1, 1);

}

/// <summary>

/// 增加一个字符串单元格

/// </summary>

/// <param name="value"></param>

public

void
CreateCellString(
string
value)

{

CreateCell(value,
"String"
,
null
, 1, 1);

}

/// <summary>

/// 保存

/// </summary>

/// <param name="strFile"></param>

public

void
Save(
string
strFile)

{

_doc.Save(strFile);

}

}

}

上面代码基本都是对xml文件的操作，需要你对xml的dom对象比较熟悉，尤其是Attributes的使用。

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通过文件结构直接生成xls文件