沒有魚的魚缸

using System.Xml;

XmlDocument myXml = new XmlDocument();

myXml.AppendChild(myXml.CreateXmlDeclaration("1.0", "UTF-8",""));

XmlElement RootElement = myXml.CreateElement("Doc");
myXml.AppendChild(RootElement);

XmlElement LV1Element_Date = myXml.CreateElement("Date");
//ChildElement1.InnerText = ABC;
RootElement.AppendChild(LV1Element_Date);

XmlElement LV2Element_Date = myXml.CreateElement("OrderDate");
LV2Element_Date.InnerText = orderDate;
LV1Element_Date.AppendChild(LV2Element_Date);

XmlElement LV1Element_ErrCode = myXml.CreateElement("ErrorCode");
LV1Element_ErrCode.InnerText = ErrCode;
RootElement.AppendChild(LV1Element_ErrCode);

XmlElement LV1Element_Errdesc = myXml.CreateElement("ErrorMessage");
LV1Element_Errdesc.InnerText = Errdesc;
RootElement.AppendChild(LV1Element_Errdesc);

return myXml;

產生的xml大概會像這樣

<?xml version=""1.0""encoding=""UTF-8""?>
<Doc>
    <Date>
        <OrderDate>20150318</OrderDate>
    </Date>
    <ErrorCode>0</ErrorCode>
    <ErrorMessage></ErrorMessage>
</Doc>