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我在 xml 数据文件下面有两个节点的数量超过 100，

<DO>
   <delivery>
    <dono>DM202422</dono>
    <custcode>M15</custcode>
    <custname>A Company</custname>
    <stockcode>ZPP56012303001</stockcode>
    <stockdesc>56012303001 DUPLEX PTD BOX</stockdesc>
    <unitprice>2.1900</unitprice>
    <qty>500</qty>
    <amount>1095.00</amount>
  </delivery>
  <delivery>
    <dono>DM202432</dono>
    <custcode>M23</custcode>
    <custname>B Company</custname>
    <stockcode>ZPP5605855V16</stockcode>
    <stockdesc>5605855 V16 PLAIN BOX</stockdesc>
    <unitprice>0.1000</unitprice>
    <qty>2000</qty>
    <amount>200.00</amount>
  </delivery>
</DO>

我的问题是如何假设我可以使用 XPathNavigator 在每个节点下显示 2 个子元素值。

如果说我需要在迭代循环的每一行中显示 dono 和 custcode，例如 custname="A Company" 下的 dono="DM202422" 和 custcode="M15" 示例。

谁能帮我改进下面的代码，它只是在我进入下一个子元素后显示一个子元素和相同的元素。

void queryinxpath()
{

    System::Xml::XPath::XPathDocument^ doc = gcnew System::Xml::XPath::XPathDocument("C:/test.xml");

    System::Xml::XPath::XPathNavigator^ nav = doc->CreateNavigator();

    System::Xml::XPath::XPathExpression^ expr = nav->Compile("descendant::delivery[amount > 100]");

    System::Xml::XPath::XPathNodeIterator^ iterator=nav->Select(expr);

    while (iterator->MoveNext())
    {
        System::Xml::XPath::XPathNavigator^ nav_ = iterator->Current->Clone();

        nav_->MoveToChild("dono","");

        System::Console::WriteLine("DO No: {0} ",nav_->Value);

        nav_->MoveToChild("custcode","");

        System::Console::WriteLine("Customer Code : {0} ",nav_->Value);

        System::Console::WriteLine("\n");

    }


}

错误结果的结果：

编号：DM202422

客户编号：DM202422

我想要的结果：

编号：DM202422

客户代码：M15

提前感谢任何人都可以解决我的问题。

4

1 回答 1

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在每个占用的导航器之后将 nav_->MoveToParent() 添加到 nav_->MoveToChild("dono","") 的顶部将解决我的问题。

while (iterator->MoveNext())
    {
        System::Xml::XPath::XPathNavigator^ nav_ = iterator->Current->Clone();

        nav_->MoveToChild("dono","");

        System::Console::WriteLine("DO No: {0} ",nav_->Value);

        nav_->MoveToParent();
        nav_->MoveToChild("custcode","");

        System::Console::WriteLine("Customer Code : {0} ",nav_->Value);

        nav_->MoveToParent();
        nav_->MoveToChild("custname","");

        System::Console::WriteLine("Customer Name : {0} ",nav_->Value);

        System::Console::WriteLine("\n");

    }
于 2014-09-15T11:06:47.790 回答