XML 空白属性创建，出现 ':' 问题特点
我正在尝试使用以下代码创建 xml。
XmlDocument xmlDocument = new XmlDocument();
XmlProcessingInstruction xPI = xmlDocument.CreateProcessingInstruction("xml", "version='1.0' encoding='UTF-8'");
xmlDocument.AppendChild(xPI);
XmlElement xElmntheader = xmlDocument.CreateElement("soapenv:Header", " ");
xmlDocument.AppendChild(xElmntheader);
MemoryStream ms = new MemoryStream();
xmlDocument.Save(ms);
string text = System.Text.Encoding.GetEncoding("UTF-8").GetString(ms.GetBuffer(), 0, (int)ms.Length);
输出是
<xml version='1.0' encoding='UTF-8'?>
<soapenv:Header xmlns:soapenv=" " />
我试图像这样创建
<xml version='1.0' encoding='UTF-8'?>
<soapenv:Header/>
如何从 soapenv:Header 中消除 xmlns:soapenv=" "？
任何帮助将不胜感激。
I am trying to create an xml with the following code.
XmlDocument xmlDocument = new XmlDocument();
XmlProcessingInstruction xPI = xmlDocument.CreateProcessingInstruction("xml", "version='1.0' encoding='UTF-8'");
xmlDocument.AppendChild(xPI);
XmlElement xElmntheader = xmlDocument.CreateElement("soapenv:Header", " ");
xmlDocument.AppendChild(xElmntheader);
MemoryStream ms = new MemoryStream();
xmlDocument.Save(ms);
string text = System.Text.Encoding.GetEncoding("UTF-8").GetString(ms.GetBuffer(), 0, (int)ms.Length);
Output is
<xml version='1.0' encoding='UTF-8'?>
<soapenv:Header xmlns:soapenv=" " />
I was trying to create like this
<xml version='1.0' encoding='UTF-8'?>
<soapenv:Header/>
How do I eliminate xmlns:soapenv=" " from soapenv:Header?
Any help would be greatly appreciated.
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评论（2）
您要问的是如何创建格式不正确（语法不正确）的 XML。 XmlDocument API 并不是为此而设计的。
如果您使用的元素名称
意味着
soapenv是命名空间前缀，它已使用xmlns:soapenv伪属性在此元素（或祖先）上声明。如果没有声明，您的 XML 输出将不会被任何有自尊的 XML 解析器接受。您调用的方法签名
采用两个参数：元素的限定名称（可能包括前缀，就像您的情况一样）；和命名空间 URI。 文档显示了预期的输出是：
此元素的预期命名空间 URI 是“http://schemas.xmlsoap.org/soap/envelope/”。因此，您需要使用该命名空间 URI: 声明soapenv 前缀，
并这样使用它：
What you're asking how to do is create ill-formed (syntactically incorrect) XML. The XmlDocument API is not designed to do that.
If you use the element name
that means
soapenvis a namespace prefix, which has been declared on this element (or an ancestor) using thexmlns:soapenvpseudoattribute. If it has not been declared, your XML output will not be accepted by any self-respecting XML parser.The method signature you called,
takes two arguments: the qualified name of the element (which may include a prefix, as it does in your case); and a namespace URI. The documentation shows what the expected output is:
The expected namespace URI for this element is "http://schemas.xmlsoap.org/soap/envelope/". So you will want to declare the soapenv prefix with that namespace URI:
and use it thus:
在没有命名空间的情况下创建（例如使用默认命名空间），那么该部分就不再是必需的：
Create without the namespace (e.g. use default namespace) and then that part won't be necessary: