我正在使用C#和MVC4开发Web应用程序。目前,我正在将字符串vars转换为SqlXml文件。我有一个具有以下结构的XML文件:
<?xml version="1.0" encoding="utf-8"?>
<cfdi:Comprobante xsi:schemaLocation="http://www.sat.gob.mx/cfd/3 http://www.sat.gob.mx/sitio_internet/cfd/3/cfdv32.xsd http://www.sat.gob.mx/TimbreFiscalDigital http://www.sat.gob.mx/TimbreFiscalDigital/TimbreFiscalDigital.xsd" xmlns:tfd="http://www.sat.gob.mx/TimbreFiscalDigital" version="3.2" xmlns:cfdi="http://www.sat.gob.mx/cfd/3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
</cfdi:Comprobante>
我将上述文件成功转换为字符串,然后使用下面的代码将字符串转换为SqlXML。
cfdiDocumento.CFDIXML = Serializar.XMLToSqlXml(comprobante);
cfdiDocumento.CFDIXML是SqlXml变量,而Serializar.XMLToSqlXml(comprobante)方法接收字符串并执行以下代码:
public static SqlXml XMLToSqlXml(string xmlString)
{
SqlXml sqlXmlFiltro = null;
if (xmlString != null)
{
StringReader sr = new StringReader(xmlString);
XmlReaderSettings settings = new XmlReaderSettings();
settings.ConformanceLevel = ConformanceLevel.Auto;
XmlReader reader0 = XmlReader.Create(sr, settings);
sqlXmlFiltro = new SqlXml(reader0);
}
return sqlXmlFiltro;
}
代码成功完成后,文件正确但正在删除xml标头
<?xml version="1.0" encoding="utf-8"?>
问题是:转换为SqlXml var时如何保留xml标头?
最佳答案
如果您无法更改SqlXml属性的类型,则可以尝试将SqlXml转换为xml文档以追加xml声明并获取外部xml:
public string SqlXmlToString(SqlXml sqlXml)
{
XmlDocument doc = new XmlDocument();
doc.Load(sqlXml.CreateReader());
// Create XML declaration with your encoding.
XmlDeclaration xmldecl;
xmldecl = doc.CreateXmlDeclaration("1.0", null, null);
xmldecl.Encoding = "UTF-8";
// Add to the document the created declaration
XmlElement root = doc.DocumentElement;
doc.InsertBefore(xmldecl, root);
return doc.OuterXml;
}
希望这会有所帮助