c# - 不从 XML 节点读取两个值

Question

我有这个 XML

 <?xml version="1.0" encoding="UTF-8"?>
 <nfeProc xmlns="http://www.portalfiscal.inf.br/nfe" versao="2.00">-<NFe>-<infNFe   versao="2.00" Id="NFe35130649196462000115550010000036141000025758">

  <ide>
  <natOp>DEVOL. ARMAZENAGEM</natOp>
  </ide>
  <total>
        <ICMSTot>
         <vNF>43778.00</vNF>
        </ICMSTot>
 </total>

我用这个 C# 代码阅读：

  private void leerarquivoN(string caminx)
    {
        XmlDocument xmlDoc = new XmlDocument();
        xmlDoc.Load(caminx);
        XmlNodeList ml = xmlDoc.GetElementsByTagName("*");
        XmlNode primer = xmlDoc.DocumentElement;
        tipo_arq = primer.Name;
        if (xmlDoc.DocumentElement.Name == "nfeProc")
        {  foreach (XmlNode xn in ml)
            {
                if (xn.Name == "infNFe")
                {
                    chave_nota = xn.Attributes["Id"].Value;
                    versao = xn.Attributes["versao"].Value;
                    lblChaveNota.Text = chave_nota; lblversao.Text = versao;
                }
             }

             XmlNodeList xnList = xmlDoc.GetElementsByTagName("ide");
             foreach (XmlNode xn in xnList)
             {
                 if (xn.Name == "ide")
                 {
                     if (xn["nNF"] != null)
                     { nnota = (xn["nNF"]).InnerText; label8.Text = nnota; }

                     if (xn["dEmi"] != null)
                     { ndata = (xn["dEmi"]).InnerText; lblData.Text = ndata;}

                     if (xn["natOP"] != null)
                     { natop = (xn["natOP"]).InnerText; lblNAtop.Text = natop ; }
                  }
             }

              XmlNodeList xnList2 = xmlDoc.GetElementsByTagName("emit");
              foreach (XmlNode xn in xnList2)
              {
                  {   if (xn["CNPJ"] != null)
                      { ncnpj = (xn["CNPJ"]).InnerText; lblCNPJ.Text  = ncnpj; }
                    }
              }
              XmlNodeList xnList3 = xmlDoc.GetElementsByTagName("total");
              foreach (XmlNode xn in xnList3)
              {
                  {
                      if (xn["vNF"] != null)
                      { ntotal  = (xn["vNF"]).InnerText; lblvNF.Text = ntotal ; }
                  }

              }


        }  

我看不懂 VNF 和 natOP，我做错了什么？？？谢谢

Answer 1

您使用的代码只是获取主节点。要获取与每个节点（natOp和vNF）关联的子节点，您必须依赖不同的代码（MSDN 参考）。示例 for natOp（在xnListfor 循环内）：

if (xn.HasChildNodes)
{
    for (int i=0; i<xn.ChildNodes.Count; i++)
    {
      //xn.ChildNodes[i].InnerText -> what you are after
    }
}