处理XmlTextWriter和null节点

Question

我有一些代码可以动态创建xml文件。有时节点有值，有时没有。我需要打开并关闭标签<hour>12:00</hour>或<hour></hour>，即使没有价值，但我找不到解决方案。值为空的我得到<hour />

XmlTextWriter writer = new XmlTextWriter(path + "/" + CustomerId + "/Data/" + CustomerId + ".xml", System.Text.Encoding.UTF8);
writer.WriteStartDocument(true);
writer.Formatting = Formatting.Indented;
writer.Indentation = 2;
writer.WriteStartElement("data");

if (paravalue == null || paravalue == "")
{
    writer.WriteStartElement(para);
    writer.WriteString("");
    writer.WriteEndElement();
}
else
{
    writer.WriteStartElement(para);
    writer.WriteString(paravalue);
    writer.WriteEndElement();
}

Answer 1

使用WriteFullEndElement代替WriteEndElement。