我在数据库中有以下XML字符串。
<?xml version="1.0" encoding="utf-16"?>
<ServiceList>
<Service>
<COMPAT>2</COMPAT>
<EQUIPID>0</EQUIPID>
<TITLE>Collect Call and SMS</TITLE>
<SMSCOMMAND>0</SMSCOMMAND>
<DIALCOMMAND>123</DIALCOMMAND>
<DEACTIVATIONCOMMAND>0</DEACTIVATIONCOMMAND>
<MODE>Dial</MODE>
<DETAIL>Here you go.</DETAIL>
<IMAGE>2014-16-9--16-28-25</IMAGE>
<LONGDESC>
<![CDATA[<p>P<br />P<br />P </p>]]>
</LONGDESC>
<Mechanism>
<Title>Mech Title</Title>
<Description>Here you go.</Description>
<Trigger>Mech Trigger</Trigger>
<Controls>1</Controls>
</Mechanism>
</Service>
</ServiceList>
我需要在ServiceList
中添加/添加以下元素<Service>
<COMPAT>2</COMPAT>
<EQUIPID>0</EQUIPID>
<TITLE>Collect Call and SMS</TITLE>
<SMSCOMMAND>0</SMSCOMMAND>
<DIALCOMMAND>123</DIALCOMMAND>
<DEACTIVATIONCOMMAND>0</DEACTIVATIONCOMMAND>
<MODE>Dial</MODE>
<DETAIL>Here you go.</DETAIL>
<IMAGE>2014-16-9--16-28-25</IMAGE>
<LONGDESC><![CDATA[<p>P<br />P<br />P </p>]]></LONGDESC>
<Mechanism>
<Title>Mech Title</Title>
<Description>Here you go.</Description>
<Trigger>Mech Trigger</Trigger>
<Controls>1</Controls>
</Mechanism>
</Service>
下面给出了c#代码,我在创建文档
XElement ServiceList =
new XElement("ServiceList",
new XElement("Service",
new XElement("COMPAT", "2"),
new XElement("EQUIPID", equipId),
new XElement("TITLE", form["Title"]),
new XElement("SMSCOMMAND", smscommand),
new XElement("DIALCOMMAND",dialcommand),
new XElement("DEACTIVATIONCOMMAND", smsdecactivationcommand),
new XElement("MODE", mode),
new XElement("DETAIL", form["Detail"]),
new XElement("IMAGE", Datetime),
new XElement("LONGDESC", new XCData(htmlstring)),
new XElement("Mechanism",
new XElement("Title", form["Mechanism.Title"]),
new XElement("Description", form["Mechanism.Description"]),
new XElement("Trigger", form["Mechanism.Triger"]),
new XElement("Controls", form["Mechanism.Controls"])
)
));
XDocument xml = new XDocument(ServiceList);
我只是借助以下方法将上述文档转换为字符串,并将其作为字符串插入数据库。
public string GetXMLAsString(XDocument myxml)
{
StringWriter sw = new StringWriter();
XmlTextWriter tx = new XmlTextWriter(sw);
myxml.WriteTo(tx);
string str = sw.ToString();
return str;
}
答案 0 :(得分:0)
假设您能够从数据库中获取XML字符串并将其存储在字符串变量xml
中,那么您可以将其加载到XDocument
,如下所示:
string xml;
.....
XDocument doc = XDocument.Parse(xml);
假设您可以将新的<Service>
节点构造为变量XElement
引用的newService
对象,您可以使用{{3}轻松地将其附加到doc
方法:
XElement newService;
.....
doc.Root.Add(newService);
然后,您需要使用更新的XML替换数据库中的XML:
string updatedXml = doc.ToString();
//save updatedXml to your database
您可以通过调用XDocument
对象上的XElement.Add()
轻松获取XML内容,如上例所示。