如何应用不等于的Linq XName

本文关键字：不等于 Linq XName 应用 何应用 | 更新日期: 2023-09-27 18:28:34

这样做是为了获取除"车辆标签"之外的标签

 document.Descendants(s0 + "Vehicles").Elements().ToList().ForEach(x => x.Add(document.Elements().Where(d => d.Element != s0 + "Vehicles")));

需要从基本xml中添加车辆以外的元素，并尝试将其保存为路径中的新xml文件。

基本Xml是

<?xml version="1.0" encoding="utf-8"?>
                <Policy >
                  <PolicyNumber></PolicyNumber>
                  <Tracking>
                     <ID></ID>
                     <LocationID></LocationID>
                     <LocationName>Wheat Ridge</LocationName>
                     <LocationPhoneNumber>3034230162</LocationPhoneNumber>
                     <LocationFaxNumber></LocationFaxNumber>
                     <LocationEmailAddress></LocationEmailAddress>
                  </Tracking>
                  <CurrentTerm>
                      <MailingAddress>
                        <Type>Mailing</Type>
                        <AddressLine>PO BOX 12</AddressLine>
                        <City>LONGMONT</City>
                        <State>
                           <ISONumber>05</ISONumber>
                           <PostalCode>CO</PostalCode>
                           <StateName>Colorado</StateName>
                        </State>
                        <ZipCode>805</ZipCode>
                     </MailingAddress>
                     <RiskState>
                        <ISONumber>05</ISONumber>
                        <PostalCode>CO</PostalCode>
                        <StateName>Colorado</StateName>
                     </RiskState>
                     <EffectiveDate>2015-10-01T00:00:00</EffectiveDate>
                     <ExpirationDate>2016-10-01T00:00:00</ExpirationDate>
                     <Vehicles>
                        <Vehicle>
                           <Number>1</Number>
                           <Year>1997</Year>
                           <Make>FORD</Make>
                           <Model>F-250 HEAVY DUTY</Model>
                        </Vehicle>
                        <Vehicle>
                           <Number>3</Number>
                           <GenerateIDCard>Y</GenerateIDCard>
                           <Year>2012</Year>
                           <Make>TOYOTA</Make>
                           <Model>CAMRY L/LE/SE/XLE</Model>
                        </Vehicle>
                       </Vehicles>
                  </CurrentTerm>
            </Policy>

输出应该是两个文件

文件1:

  <?xml version="1.0" encoding="utf-8"?>
                    <Policy >
                      <PolicyNumber></PolicyNumber>
                      <Tracking>
                         <ID>1249</ID>
                         <LocationID>2001</LocationID>
                         <LocationName>Wheat Ridge</LocationName>
                         <LocationPhoneNumber>3034230162</LocationPhoneNumber>
                         <LocationFaxNumber></LocationFaxNumber>
                         <LocationEmailAddress></LocationEmailAddress>
                      </Tracking>
                      <CurrentTerm>
                         <MailingAddress>
                            <Type>Mailing</Type>
                            <AddressLine>PO BOX 12</AddressLine>
                            <City>LONGMONT</City>
                            <State>
                               <ISONumber>05</ISONumber>
                               <PostalCode>CO</PostalCode>
                               <StateName>Colorado</StateName>
                            </State>
                            <ZipCode>805</ZipCode>
                         </MailingAddress>
                         <RiskState>
                            <ISONumber>05</ISONumber>
                            <PostalCode>CO</PostalCode>
                            <StateName>Colorado</StateName>
                         </RiskState>
                         <EffectiveDate>2015-10-01T00:00:00</EffectiveDate>
                         <ExpirationDate>2016-10-01T00:00:00</ExpirationDate>
                            <Vehicle>
                               <Number>1</Number>
                               <Year>1997</Year>
                               <Make>FORD</Make>
                               <Model>F-250 HEAVY DUTY</Model>
                            </Vehicle>
                      </CurrentTerm>
                </Policy>

文件2:

<?xml version="1.0" encoding="utf-8"?>
                <Policy >
                  <PolicyNumber></PolicyNumber>
                  <Tracking>
                     <ID>1249</ID>
                     <LocationID>2001</LocationID>
                     <LocationName>Wheat Ridge</LocationName>
                     <LocationPhoneNumber>3034230162</LocationPhoneNumber>
                     <LocationFaxNumber></LocationFaxNumber>
                     <LocationEmailAddress></LocationEmailAddress>
                  </Tracking>
                  <CurrentTerm>
                     <MailingAddress>
                        <Type>Mailing</Type>
                        <AddressLine>PO BOX 12</AddressLine>
                        <City>LONGMONT</City>
                        <State>
                           <ISONumber>05</ISONumber>
                           <PostalCode>CO</PostalCode>
                           <StateName>Colorado</StateName>
                        </State>
                        <ZipCode>805</ZipCode>
                     </MailingAddress>
                     <RiskState>
                        <ISONumber>05</ISONumber>
                        <PostalCode>CO</PostalCode>
                        <StateName>Colorado</StateName>
                     </RiskState>
                     <EffectiveDate>2015-10-01T00:00:00</EffectiveDate>
                     <ExpirationDate>2016-10-01T00:00:00</ExpirationDate>
                        <Vehicle>
                          <Number>3</Number>
                          <VehicleIdentificationNumber>4T1BF1FK3CU526945</VehicleIdentificationNumber>
                          <Year>2012</Year>
                          <Make>TOYOTA</Make>
                          <Model>CAMRY L/LE/SE/XLE</Model>
                        </Vehicle>
                  </CurrentTerm>
            </Policy>

但是我犯了一个我们不能用的错误操作人员错误2运算符"！="无法应用于"方法组"answers"System.Xml.Linq.XName"类型的操作数c:''users''502556385''documents''visual studio 2012''Projects''SplitXML''SplitXML''Program.cs 31 122 SplitXML

如何应用不等于的Linq XName

您需要使用XName，而不是字符串：

document.Descendants(XName.Get("Vehicles",s0)).Elements().ToList()
.ForEach(x => x.Add(document.Elements().Where(d => d.Name != XName.Get("Vehicles",s0)));

该方法使用以下参数：XName.Get(string tagName,string namespace).如果s0确实是名称空间（XNameSpace），则需要使用s0.NameSpace来获取字符串名称。

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