Question

我有以下XML文件。我必须使用XElement和XAttribute添加节点。怎么做？

   <?xml version="1.0" encoding="UTF-8"?>
    <Report xmlns="http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition" xmlns:rd="http://schemas.microsoft.com/SQLServer/reporting/reportdesigner"> 
       <DataSets>
          <DataSet Name="Data">
              <Query>
                  <DataSourceName>DS1</DataSourceName>
                  <CommandText>SELECT FirstName,LastName FROM Person</CommandText>
              </Query>
</DataSet>
    <DataSet Name="table22">
      <Query>
        <DataSourceName>DS1</DataSourceName>
        <CommandText>New text2</CommandText>
      </Query>

如何在＆＃34; / query＆＃34;的末尾将以下XML文本添加到上面的xml文件中;元素使用XElement和XAttribute

 <Fields>
        <Field Name="ReportId">
          <DataField>ReportId</DataField>
          <rd:TypeName>System.Int64</rd:TypeName>
        </Field>

Answer 1

您可以先尝试选择<Query>元素，然后使用AddAfterSelf()方法在<Fields>元素之后添加<Query>元素，例如：

var doc = XElement.Parse(xml);
XNamespace ns = "http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition";
var query = doc.Element(ns + "DataSets").Element(ns + "DataSet").Element(ns + "Query");

Console.WriteLine("before :");
Console.WriteLine(doc.ToString());
Console.WriteLine("");

XNamespace rd = "http://schemas.microsoft.com/SQLServer/reporting/reportdesigner";
var field = new XElement(ns+"Fields",
                         new XElement(ns+"Field", new XAttribute("Name", "ReportId")
                                      , new XElement(ns+"DataField", "ReportId")
                                      , new XElement(rd + "TypeName", "System.Int64")));
query.AddAfterSelf(field);

Console.WriteLine("after :");
Console.WriteLine(doc.ToString());

如何将节点和属性附加到现有Xml文件

1 个答案: