我正在尝试获取scheme元素中数据元素的最后一个后代的计数，并根据该计数将一个元素添加到data元素中。这是我的代码
[...]
if ((scheme.Descendants("data").Count() > 1 ) && (serialNumber == scheme.Descendants("data").Count()))
{
data.Add(new XElement("serial-no", "T9999"));
}
else
{
data.Add(new XElement("serial-no", serialNumber));
}
[...]
<< [serialNumber将自动递增。输出不好，因为这就是我得到的
<scheme>
<code>10050</code>
<data>
<serial-no>1</serial-no>
</data>
<data>
<serial-no>T9999</serial-no>
</data>
<data>
<serial-no>T9999</serial-no>
</data>
</scheme>
下面是我想要得到的
<scheme> <code>10050</code> <data> <serial-no>1</serial-no> </data> <data> <serial-no>2</serial-no> </data> [...] <data> <serial-no>T9999</serial-no> </data> </scheme> <scheme> <code>10000</code> <data> <serial-no>1</serial-no> </data> <data> <serial-no>2</serial-no> </data> [...] <data> <serial-no>T9999</serial-no> </data> </scheme>
我需要做什么？
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
using System.Data;
using System.IO;
namespace ConsoleApplication1
{
class Program
{
const string INPUT_FILENAME = @"c:\temp\test.txt";
const string OUTPUT_FILENAME = @"c:\temp\test.xml";
const string OUTPUT_FILENAME1 = @"c:\temp\test1.xml";
static DataTable dt = new DataTable();
static XDocument doc;
static void Main(string[] args)
{
ReadData(INPUT_FILENAME);
dt = dt.AsEnumerable()
.OrderBy(x => x.Field<string>("scheme-code"))
.ThenBy(x => x.Field<string>("emp-code"))
.ThenBy(x => x.Field<string>("pin"))
.CopyToDataTable();
CreateXml();
doc.Save(OUTPUT_FILENAME);
//add new node
foreach (XElement employer in doc.Descendants("employer"))
{
XElement t999 = employer.Elements("data").Where(x => (string)x.Element("serial-no") == "T999").FirstOrDefault();
int maxSerialNumber = employer.Descendants("serial-no").Where(x => (string)x != "T999").Max(x => (int)x);
XElement newData = XElement.Parse(employer.Element("data").ToString());
string serialNumberStr = (t999 == null) ? "T999" : (maxSerialNumber + 1).ToString();
XElement data = NewData(
serialNumberStr,
"", //pin
0.0M, //emplorer contribution
0.0M, //employee contribution
0.0M, //total volumn contribution
0.0M // total
);
if (t999 == null)
{
employer.Add(newData);
}
else
{
t999.ReplaceWith(new object[] { newData, t999 });
}
}
doc.Save(OUTPUT_FILENAME1);
}
static void ReadData(string filename)
{
int rowNumber = 0;
string line = "";
StreamReader reader = new StreamReader(INPUT_FILENAME);
while ((line = reader.ReadLine()) != null)
{
string[] splitData = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries).ToArray();
if (++rowNumber == 1)
{
for (int i = 0; i < splitData.Length; i++)
{
if (i < 3)
{
dt.Columns.Add(splitData[i], typeof(string));
}
else
{
dt.Columns.Add(splitData[i], typeof(decimal));
}
}
}
else
{
DataRow newRow = dt.Rows.Add();
for (int i = 0; i < splitData.Length; i++)
{
if (i < 3)
{
newRow[i] = splitData[i];
}
else
{
newRow[i] = decimal.Parse(splitData[i]);
}
}
}
}
reader.Close();
}
static void CreateXml()
{
string xmlns_rmas = "value here";
string xmlns_xsi = "value here";
string xmlns_noNamespaceSchemaLocation = "value here";
string xmlIdentFormat =
"<?xml version='1.0' encoding='UTF-8'?>" +
"<return" +
" xmlns:rmas=\"{0}\"" +
" xmlns:xsi=\"{1}\"" +
" xsi:noNamespaceSchemaLocation=\"{2}\">" +
"</return>";
string xmlIdent = string.Format(xmlIdentFormat, xmlns_rmas, xmlns_xsi, xmlns_noNamespaceSchemaLocation);
doc = XDocument.Parse(xmlIdent);
XElement _return = doc.Root;
string returnCode = "";
string returnDesc = "";
DateTime date = DateTime.Now;
string operatorCode = "";
XElement header = new XElement("header", new object[] {
new XElement("return-code", returnCode),
new XElement("return-desc", returnDesc),
new XElement("as-at-date", date),
new XElement("operator-code", operatorCode)
});
_return.Add(header);
XElement body = new XElement("body");
_return.Add(body);
foreach (var schemeGroup in dt.AsEnumerable().GroupBy(x => x.Field<string>("scheme-code")))
{
XElement scheme = new XElement("scheme");
body.Add(scheme);
XElement code = new XElement("code", schemeGroup.Key);
scheme.Add(code);
foreach (var empCodeGroup in schemeGroup.GroupBy(y => y.Field<string>("emp-code")))
{
XElement employer = new XElement("employer");
scheme.Add(employer);
int serialNumber = 0;
foreach (var pinGroup in empCodeGroup.GroupBy(y => y.Field<string>("pin")))
{
if (serialNumber == 0)
{
XElement emprCode = new XElement("empr-code", empCodeGroup.Key);
employer.Add(emprCode);
}
foreach (DataRow row in pinGroup)
{
string serialNumberStr = serialNumber.ToString();
if ((empCodeGroup.Count() > 1) && (serialNumber == empCodeGroup.Count() - 1))
{
serialNumberStr = "T999";
}
XElement data = NewData(
serialNumberStr,
pinGroup.Key,
row.Field<decimal>("empr-contr"),
row.Field<decimal>("empyee-contr"),
row.Field<decimal>("total-vol-cont"),
row.Field<decimal>("total")
);
employer.Add(data);
serialNumber++;
}
}
}
}
}
static XElement NewData(string serialNumber, string pin, decimal employerContribution, decimal employeeContribution, decimal voluntaryContribution, decimal totalContribution)
{
XElement data = new XElement("data");
data.Add(new XElement("serial-no", serialNumber));
data.Add(new XElement("pin", pin));
data.Add(new XElement("employer-contribution", employerContribution));
data.Add(new XElement("employee-contribution", employeeContribution));
data.Add(new XElement("voluntary-contribution", voluntaryContribution));
data.Add(new XElement("total-contribution", totalContribution));
return data;
}
}
}