Question

我有XML示例

<order>
 <orderItem>
    <OrderId>Ex1</OrderId>
    <amount>100</amount>
 </orderItem>
 <orderItem>
    <OrderId>Ex2</OrderId>
    <amount>150</amount>
 </orderItem>
 <orderItem>
    <OrderId>Ex1</OrderId>
    <amount>250</amount>
 </orderItem>
</order>

如果OrderId标记值等于另一个OrderId标记值，则添加Amount标记并删除新添加的标记。

我需要的结果输出应该如下

<order>
 <orderItem>
  <OrderId>Ex1</OrderId>
  <amount>350</amount>
 </orderItem>
 <orderItem>
  <OrderId>Ex2</OrderId>
  <amount>150</amount>
 </orderItem>
</order>

OrderId值应该更改。

string filename = "File Location";
var doc = XDocument.Load(filename);
var results = doc.Descendants("order");
var orderItemcount = results.Descendants("orderItem").Count();

我不知道下一步该做什么。

先谢谢。

更新：

我喜欢下面的新XML

<order>
 <orderItem>
   <Orders>
     <OrderId>Ex1</OrderId>
     <amount>100</amount>
   </Orders>
 </orderItem>
 <orderItem>
  <Orders>
   <OrderId>Ex2</OrderId>
   <amount>150</amount>
  </Orders>
 </orderItem>
 <orderItem>
  <Orders>
    <OrderId>Ex1</OrderId>
    <amount>250</amount>
  </Orders>
</orderItem>
</order>

如果OrderId为Same，则将该OrderItem标记添加到匹配标记。结果我需要如下所示

<order>
 <orderItem>
  <Orders>
    <OrderId>Ex1</OrderId>
    <amount>100</amount>
  </Orders>
  <Orders>
   <OrderId>Ex1</OrderId>
   <amount>250</amount>
 </orderItem>
 <orderItem>
  <Orders>
   <OrderId>Ex2</OrderId>
   <amount>150</amount>
  <Orders>
 </orderItem> 
</order>

更新答案

var groups = doc.Descendants("order").Descendants("orderItem").Descendants("Orders")
                .GroupBy(x => (string)x.Element("OrderId"))
                .ToList();


            XElement newXml = new XElement("order");
            foreach (var group in groups)
            {
                newXml.Add(new XElement("OrderList", new object[] {
                // new XAttribute("OrderId", group.Key), // If you Need Key for Attribute add this.
                    group
            }));
            }

Answer 1

有几个步骤：

按ID分组您的订单，然后为每个分组...
获取总金额
将第一笔订单金额设为总金额
删除剩余订单

代码非常简单：

while (true){
//hide the paragraph
   $("para").hide()
//show the paragraph slowly
   $("para").show("slow")
}

有关正常工作的演示，请参阅this fiddle。

Answer 2

通过UIView.init()转换为OrderId的标准组，可以通过以下LINQ to XML查询来完成：

Sum(amount)

Answer 3

使用xml linq

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;

namespace ConsoleApplication1
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.xml";
        static void Main(string[] args)
        {
            XDocument doc = XDocument.Load(FILENAME);
            var groups = doc.Descendants("orderItem")
                .GroupBy(x => (string)x.Element("OrderId"))
                .Select(x => x.Select(y => new {orderId = y, amount = (int)y.Element("amount")}))
                .ToList();
            for (int groupNum = groups.Count - 1; groupNum >= 0; groupNum--)
            {
                var group = groups[groupNum];
                int total = group.Select(x => x.amount).Sum();
                for (int orderItemCount = group.Count() - 1; orderItemCount >= 0; orderItemCount--)
                {
                    var orderItem = group.Skip(orderItemCount).FirstOrDefault();
                    if (orderItemCount > 0)
                    {
                        orderItem.orderId.Remove();
                    }
                    else
                    {
                        XElement amount = orderItem.orderId.Element("amount");
                        amount.Value = total.ToString();
                    }
                }
            }

        }
    }
}

使用名称标记比较XML节点值并删除标记

3 个答案: