这是我的源XML:
<?xml version="1.0" encoding="UTF-8"?>
<cteProc xmlns="http://www.portalfiscal.inf.br/cte" versao="1.04">
<CTe>
<infCte versao="1.04" Id="CTe35121004211559000111570010000118991000119858">
<ide>
<cUF>35</cUF>
<cCT>00011985</cCT>
<CFOP>7358</CFOP>
<natOp>PRESTACAO DE SERVICO DE TRANSPORTE</natOp>
<forPag>1</forPag>
<mod>57</mod>
<serie>1</serie>
<nCT>11899</nCT>
<dhEmi>2012-10-01T09:34:45</dhEmi>
</ide>
<compl>
<emit>
<rem>
<dest>
<vPrest>
<imp>
<infCTeNorm>
</infCte>
<Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
</CTe>
<protCTe versao="1.04">
</cteProc>
我已使用以下代码阅读此文件:
XmlTextReader reader = new XmlTextReader(@"C:\Separados\56000858_v01.04-procCTe.xml");
XmlNodeType type;
while (reader.Read())
{
type = reader.NodeType;
if (type == XmlNodeType.Element)
{
if (reader.Name == "cUF")
{ reader.Read(); Xmunini = reader.Value; textBox1.Text = Xmunini;}
if (reader.Name == "cCT")
{ reader.Read(); vtprest = reader.Value; textBox2.Text = vtprest;}
if (reader.Name == "natOp")
{ reader.Read(); UFIni = reader.Value; textBox3.Text = UFIni; }
if (reader.Name == "nCT")
{ reader.Read(); NCT = reader.Value; textBox4.Text = NCT;}
但是,我在这里看了很多帖子,LINQ的方法效率更高,我试着写一下:
var custs45 = from c in XElement.Load(@"C:\Separados\56000858_v01.04-procCTe.xml").Elements("Cte")
select new {
CFOP = c.Element("CFOP").Value,
xMunIni = c.Element("xMunIni").Value
};
我的问题是如何将CFOP和Xmunini分配给变量?我写了这个,但没有显示任何东西
string CFF;
foreach (var valores in custs45)
{
CFF = valores.CFOP.ToString() ;
}
答案 0 :(得分:1)
您找不到节点,因为根节点已经过命名空间。这是解决方案:
XDocument xdoc = XDocument.Load(path_to_xml);
XNamespace ns = "http://www.portalfiscal.inf.br/cte";
string CFF = (string)xdoc.Descendants(ns + "CFOP").Single();
此外,您在CTe
元素名称中输入了拼写错误。你遗憾CFOP
不是CTe
的直接孩子。并且xml中仍然没有xMunIni
元素。
您的原始查询应如下所示:
XNamespace ns = "http://www.portalfiscal.inf.br/cte";
var custs45 = from ide in XElement.Load(path_to_xml).Descendants(ns + "ide")
select new
{
CFOP = (string)ide.Element(ns + "CFOP"),
xMunIni = (string)ide.Element(ns + "xMunIni")
};