XML生成Excel列表实例

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Xml;
using System.Xml.Serialization;

namespace BusinessRules
{
public class ReportTableHelper
{
public static MemoryStream GenerateRdlc(List<ReportParas> paras, string reportName)
{
#region 先前的版本
//XmlElement theBook = null, theElem = null, root = null;
//XmlDocument xmldoc = new XmlDocument();

////找到文件路径后读取文件
//string path = AppDomain.CurrentDomain.BaseDirectory + "/" + reportName;
//xmldoc.Load(path);
//root = xmldoc.DocumentElement;

//#region 声明
//XmlNodeList matrixFieldList = root.GetElementsByTagName("Textbox");
//XmlNodeList tableFieldList = root.GetElementsByTagName("Value");
//XmlNodeList pointList = root.GetElementsByTagName("Left");
//#endregion

//#region 对传入的数据进行处理，修改xml模板
//int index = 0;
//int pointIndex = 0;
////在XML中找到需要隐藏的数据列
//for (int x = 0; x < paras.Count; x++)
//{
// for (int i = 0; i < matrixFieldList.Count; i++)
// {
// if (matrixFieldList[i].Attributes["Name"].Value == paras[x].ParaValue)
// {
// //隐藏所找到的数据
// matrixFieldList[i].InnerXml += "<Visibility><Hidden>true</Hidden></Visibility>";
// //将Matrix数据列中的宽设置为零 达到隐藏该列的效果
// matrixFieldList[i].ParentNode.ParentNode.ParentNode.ChildNodes[0].InnerText = "0cm";
// index = i;//将当前的index保存，用来对应隐藏表头
// break;
// }
// }

// //在XML中找到需要隐藏的表头列
// for (int j = 0; j < tableFieldList.Count; j++)
// {
// if (tableFieldList[j].InnerText == paras[x].ParaHeader)
// {
// pointIndex = tableFieldList.Count - 2;
// //隐藏所找到的数据
// tableFieldList[j].ParentNode.InnerXml += "<Visibility><Hidden>true</Hidden></Visibility>";
// //重新设置各列的坐标
// while (pointIndex > j)
// {
// string content = matrixFieldList[pointIndex - 1].ChildNodes[4].InnerText;
// matrixFieldList[pointIndex].ChildNodes[4].InnerText = content;
// pointIndex--;
// }
// pointIndex++;
// break;
// }
// }

// #region 将Table中的Header对应列宽设置为零 达到隐藏该列的效果
// //XmlNodeList contentList = root.GetElementsByTagName("Style");
// //for (int temp = 0; temp < contentList.Count; temp++)
// //{

// // contentList[temp].InnerXml += "<TextAlign>Center</TextAlign>";
// //}
// #endregion
//}
//#endregion

//#region 将修改后的xml文件串行化为MemoryStream对象，返回
//MemoryStream ms = new MemoryStream();
//XmlSerializer serializer = new XmlSerializer(typeof(XmlDocument));
//serializer.Serialize(ms, xmldoc);
//ms.Position = 0;
//return ms;
//#endregion
#endregion

#region 声明
XmlElement root = null;
XmlDocument xmldoc = new XmlDocument();
#endregion

#region 找到文件路径后读取文件
string path = AppDomain.CurrentDomain.BaseDirectory + "/" + reportName;
xmldoc.Load(path);
root = xmldoc.DocumentElement;
#endregion

#region 定义xmlNodeList
XmlNodeList matrixFieldList = root.GetElementsByTagName("Textbox");
XmlNodeList tableFieldList = root.GetElementsByTagName("Value");
#endregion

#region 添加命名空间
XmlNamespaceManager nsmanager = new XmlNamespaceManager(xmldoc.NameTable);
nsmanager.AddNamespace("rd", "http://schemas.microsoft.com/SQLServer/reporting/reportdesigner");
nsmanager.AddNamespace("xx", "http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition");
#endregion

#region 重构XM结构 使所有Rectangle中的TextBox节点都包含Left子节点
bool leftExsit = false;//是否存在Left节点
XmlNodeList leftList = root.GetElementsByTagName("Rectangle");
XmlNode reportList = null;
if (leftList.Count > 0)
{
//找到ReportItems节点
for (int b = 0; b < leftList[0].ChildNodes.Count; b++)
{
if (leftList[0].ChildNodes[b].Name == "ReportItems")
{
reportList = leftList[0].ChildNodes[b];
}
}
if (reportList != null)
{
for (int temp = 0; temp < reportList.ChildNodes.Count; temp++)
{
for (int a = 0; a < reportList.ChildNodes[temp].ChildNodes.Count; a++)
{
if (reportList.ChildNodes[temp].ChildNodes[a].Name == "Left")
{
leftExsit = true;//Left节点存在
}
}
if (!leftExsit)//不存在Left节点，则添加Left节点
{
reportList.ChildNodes[temp].InnerXml += "<Left>0cm</Left>";
}
}
}
else//不存在节点，抛出异常
{
throw new Exception("Must include \"ReportItems\" in the Node \"Rectangle\"");
}
}
#endregion

#region 对传入的数据进行处理，修改xml模板
int index = 0;
int pointIndex = 0;
//在XML中找到需要隐藏的数据列
for (int x = 0; x < paras.Count; x++)
{
for (int i = 0; i < matrixFieldList.Count; i++)
{
if (matrixFieldList[i].Attributes["Name"].Value == paras[x].ParaValue)
{
//隐藏所找到的数据
matrixFieldList[i].InnerXml += "<Visibility><Hidden>true</Hidden></Visibility>";
//将Matrix数据列中的宽设置为零 达到隐藏该列的效果
matrixFieldList[i].ParentNode.ParentNode.ParentNode.ChildNodes[0].InnerText = "0cm";
index = i;//将当前的index保存，用来对应隐藏表头
break;
}
}
string content = "";
//在XML中找到需要隐藏的表头列
for (int j = 0; j < tableFieldList.Count; j++)
{
if (tableFieldList[j].InnerText == paras[x].ParaHeader)
{
pointIndex = tableFieldList.Count - 2;
//隐藏所找到的数据
tableFieldList[j].ParentNode.InnerXml += "<Visibility><Hidden>true</Hidden></Visibility>";
//重新设置各列的坐标
while (pointIndex > j)
{
//遍历所有子节点 得到坐标值后 依次更新先前的节点坐标
for (int c = 0; c < matrixFieldList[pointIndex - 1].ChildNodes.Count; c++)
{
if (matrixFieldList[pointIndex - 1].ChildNodes[c].Name == "Left")
{
content = matrixFieldList[pointIndex - 1].ChildNodes[c].InnerText;
}
}
if (content == "")//Left节点不存在，跑出异常
{
throw new Exception("Missing \"Left\" Node");
}
for (int d = 0; d < matrixFieldList[pointIndex].ChildNodes.Count; d++)
{
if (matrixFieldList[pointIndex].ChildNodes[d].Name == "Left")
{
matrixFieldList[pointIndex].ChildNodes[d].InnerText = content;
}
}
pointIndex--;
}
pointIndex++;
break;
}
}
}
#endregion

#region 将修改后的xml文件串行化为MemoryStream对象，返回
MemoryStream ms = new MemoryStream();
XmlSerializer serializer = new XmlSerializer(typeof(XmlDocument));
serializer.Serialize(ms, xmldoc);
ms.Position = 0;
return ms;
#endregion
}
}
}