[英]Linq to XML Read xml file using linq
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE Report SYSTEM "https://abc.mycompany.com/abc/processingreports/processeddtd/abcd_1_8.dtd">
<Report Name="Daily TRANSACTIONS"
Version="1.8"
xmlns="https://abc.mycompany.com/abc/processingreports/processeddtd/abcd_1_8.dtd"
OrgID="ABC_PQR" StartDate="2011-03-10T00:00:00+00:00" EndDate="2011-03-11T00:00:00+00:00">
<Requests>
<Request ID="2"
Date="2011-03-10T00:21:14+00:00"
OrderNumber="1">
<BillTo>
<FirstName />
</BillTo>
<LineItems>
<LineItem Number="0">
<Quantity />
</LineItem>
</LineItems>
</Request>
<Request ID="2"
Date="2011-03-10T00:21:14+00:00"
OrderNumber="1">
TransactionNumber="389958330911111">
<BillTo>
<FirstName>A</FirstName>
</BillTo>
<LineItems>
<LineItem Number="0">
<Quantity>1</Quantity>
</LineItem>
</LineItems>
<UniqueData>
<UniqueNumber>11111111111111111111111111111</UniqueNumber>
</UniqueData></Request></Requests></Report>
在上面的 XML 文件中使用 Linq 我只想提取 OrderNumber 和 UniqueNumber OrderNumber="1" 11111111111111111111111111111
有什么想法和建议可以提取这些细节吗?
我可以从 xml 文件上方的 select 元素,但 UniqueNumber 与 OrderNumber 无关
我正在寻找下面的东西(忽略不存在 UniqueNumber 的行) OrderNumber - assosicated UniqueNumber
更新在“requiredElements”中,我期望有两个列 OrderNumber 和 UniqueNumber,并将关联的值彼此保持为 1 和 11111 等等
#region FileOpen with UTF8 Encoding
TextReader sr = new StreamReader(cFileName, Encoding.UTF8);
XDocument reportfile = XDocument.Load(sr, LoadOptions.SetBaseUri);
XElement xd = XElement.Parse(reportfile.ToString());
sr.Close();
#endregion
XNamespace ns = xd.Attribute("xmlns").Value;
var requiredElements = (from resultquery in reportfile.Descendants()
select new
{
OrderNumber = resultquery.Attribute("OrderNumber"),
UniqueNumber= (string)resultquery.Element(AddNameSpace(ns, "UniqueNumber")),
}
);
这是一些示例:
XDocument doc = XDocument.Load(@"file.xml");
XNamespace df = doc.Root.Name.Namespace;
var results = from request in doc.Descendants(df + "Request")
where request.Elements(df + "UniqueData").Elements(df + "UniqueNumber").Any()
select new
{
ordNumber = (int)request.Attribute("OrderNumber"),
uniqueNumber = (decimal)request.Element(df + "UniqueData").Element(df + "UniqueNumber")
};
foreach (var result in results)
{
Console.WriteLine("{0}-{1}", result.ordNumber, result.uniqueNumber);
}
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