我正在尝试使用以下代码将对象列表序列化为XDocument,但我收到一条错误消息,指出“无法将非空格字符添加到内容中 “
public XDocument GetEngagement(MyApplication application)
{
ProxyClient client = new ProxyClient();
List<Engagement> engs;
List<Engagement> allEngs = new List<Engagement>();
foreach (Applicant app in application.Applicants)
{
engs = new List<Engagement>();
engs = client.GetEngagements("myConnString", app.SSN.ToString());
allEngs.AddRange(engs);
}
DataContractSerializer ser = new DataContractSerializer(allEngs.GetType());
StringBuilder sb = new StringBuilder();
System.Xml.XmlWriterSettings xws = new System.Xml.XmlWriterSettings();
xws.OmitXmlDeclaration = true;
xws.Indent = true;
using (System.Xml.XmlWriter xw = System.Xml.XmlWriter.Create(sb, xws))
{
ser.WriteObject(xw, allEngs);
}
return new XDocument(sb.ToString());
}
我做错了什么?是不是XDocument
构造函数没有对象列表?怎么解决这个问题?
答案 0 :(得分:2)
我认为最后一行应该是
return XDocument.Parse(sb.ToString());
完全删除序列化程序可能是一个想法,从List<>
直接创建XDoc应该很容易。这使您可以完全控制结果。
大致是:
var xDoc = new XDocument( new XElement("Engagements",
from eng in allEngs
select new XElement ("Engagement",
new XAttribute("Name", eng.Name),
new XElement("When", eng.When) )
));
答案 1 :(得分:0)
XDocument的ctor期望其他对象,如XElement和XAttribute。看看文档。您正在寻找的是XDocument.Parse(...)。
以下内容也应该有效(未经测试):
XDocument doc = new XDocument();
XmlWriter writer = doc.CreateNavigator().AppendChild();
现在,您可以直接在不使用StringBuilder的情况下编写文档。应该快得多。
答案 2 :(得分:0)
我以这种方式完成了工作。
private void button2_Click(object sender, EventArgs e)
{
List<BrokerInfo> listOfBroker = new List<BrokerInfo>()
{
new BrokerInfo { Section = "TestSec1", Lineitem ="TestLi1" },
new BrokerInfo { Section = "TestSec2", Lineitem = "TestLi2" },
new BrokerInfo { Section = "TestSec3", Lineitem ="TestLi3" }
};
var xDoc = new XDocument(new XElement("Engagements",
new XElement("BrokerData",
from broker in listOfBroker
select new XElement("BrokerInfo",
new XElement("Section", broker.Section),
new XElement("When", broker.Lineitem))
)));
xDoc.Save("D:\\BrokerInfo.xml");
}
public class BrokerInfo
{
public string Section { get; set; }
public string Lineitem { get; set; }
}