通过excel可识别的xml结构直接生成xls文件收藏

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。