Question

我正在尝试将以下内容写入XML文档：

<html xmlns:o="urn:schemas-microsoft-com:office:office"
xmlns:x="urn:schemas-microsoft-com:office:excel"
xmlns="http://www.w3.org/TR/REC-html40">

    <head>
     <xml> 
      <x:ExcelWorkbook>
       <x:ExcelWorksheets>
        <x:ExcelWorksheet>
         other code here
        </x:ExcelWorksheet>
       </x:ExcelWorksheets>
      </x:ExcelWorkbook>
     </xml>
    </head>
   </html>

但是，如果我使用以下代码，它会删除'x：'。

System.Xml.XmlDocument document = new System.Xml.XmlDocument();

System.Xml.XmlElement htmlNode = document.CreateElement("html");
htmlNode.SetAttribute("xmlns:o", "urn:schemas-microsoft-com:office:office");
htmlNode.SetAttribute("xmlns:x", "urn:schemas-microsoft-com:office:excel");
htmlNode.SetAttribute("xmlns", "http://www.w3.org/TR/REC-html40");
document.AppendChild(htmlNode);

System.Xml.XmlElement headNode = document.CreateElement("head");
htmlNode.AppendChild(headNode);
headNode.AppendChild(
  document.CreateElement("xml")).AppendChild(
  document.CreateElement("x:ExcelWorkbook"))).AppendChild(
  document.CreateElement("x:ExcelWorksheets")).AppendChild(
  document.CreateElement("x:ExcelWorksheet")).InnerText="other code here";

如何阻止这种情况发生？

Answer 1

使用CreateElement的两个参数版本，并将名称空间指定为第二个参数。例如：

System.Xml.XmlElement myElement = document.CreateElement(
                                      "x:ExcelWorkbook",
                                      "urn:schemas-microsoft-com:office:excel");

Answer 2

使用XmlDocument.CreateElement重载，您可以指定所需的前缀＆amp;元素的名称空间，例如。

document.CreateElement("x", "ExcelWorkbook", "urn:schemas-microsoft-com:office:excel");

示例

从您的评论中我认为您已按照我建议的方式继续创建每个元素。我所指的是如何让您的Excel特定元素具有正确的名称空间前缀。请参阅下面的示例，了解如何将每个元素与正确的名称空间前缀正确关联：

// store ns in a local variable as it is going to be re-used const string HTML_NS = "http://www.w3.org/TR/REC-html40"; const string EXCEL_NS = "urn:schemas-microsoft-com:office:excel"; XmlDocument doc = new XmlDocument(); // create the HTML element and set the HTML namespace as the default XmlElement htmlElement = doc.CreateElement("html", HTML_NS); // add the office/excel namespaces into the HTML element (so we can reference them later) htmlElement.SetAttribute("xmlns:o", "urn:schemas-microsoft-com:office:office"); htmlElement.SetAttribute("xmlns:x", EXCEL_NS); doc.AppendChild(htmlElement); // associate the HEAD element with the HTML namespace as this is a HTML element XmlElement headElement = doc.CreateElement("head", HTML_NS); htmlElement.AppendChild(headElement); // now this is the one I am not too sure about as I don't know which // namespace you would associate the XML tag with. If you run the code // as it is specified here it will write out as <xml xmlns=""> which is // correct as we aren't associating it with a namespace. As a workaround // you could associate it with the HTML NS if it is just for writing out XmlElement xmlElement = doc.CreateElement("xml", HTML_NS); headElement.AppendChild(xmlElement); // create ExcelWorkbook element and associate with the excel namespace // Unlike the HTML/HEAD tags we need to supply the prefix here because the Excel // namespace is not the default XmlElement xlWorkbookElement = doc.CreateElement("x", "ExcelWorkbook", EXCEL_NS); xmlElement.AppendChild(xlWorkbookElement); // create ExcelWorksheets element and associate with the excel namespace XmlElement xlWorksheetsElement = doc.CreateElement("x", "ExcelWorksheets", EXCEL_NS); xlWorkbookElement.AppendChild(xlWorksheetsElement); // create the ExcelWorksheet element and associate with the excel namespace XmlElement xlWorksheetElement = doc.CreateElement("x", "ExcelWorksheet", EXCEL_NS); xlWorksheetsElement.AppendChild(xlWorksheetElement);

希望能为你解决问题。

使用XmlDocument为Excel表导出XML

2 个答案: