new UTF8Encoding（false）仍然写入utf8 BOM

Question

我在我的代码中关闭了BOM，它仍然将其打印在我的xml文档中。我不明白。我已经看着许多来源，仍然一无所获，应该只是

我的代码开始做这个工作一般

XDocument xmlDoc = XDocument.Load(CompDir + File.Name); 

AppendToFile(xmlDoc, aDataRow); 

using (var writer = new XmlTextWriter 
    (FilePrep.CompletedDirectory + File.Name, new UTF8Encoding(false))) 
    { 
    xmlDoc.Save(writer); 
    writer.Close(); 
    } 
break; 

，并追加到文件看起来像这样

private void AppendToFile(XDocument xmlDoc, DataRow aDataRow) 
{ 
    //String StrName = aDataRow.ItemArray.GetValue(5).ToString() + ' ' + aDataRow.ItemArray.GetValue(6).ToString(); 

    try 
    { 
     XElement foundEl = xmlDoc.Descendants("CreditScoreInfo").First(); 
     foundEl.Add(new XElement("CreditScore", aDataRow.ItemArray.GetValue(2)), 
        new XElement("CreditScoreDt", aDataRow.ItemArray.GetValue(1))); 
        //,new XElement("ScoredName", StrName)); 
    } 
    catch 
    { 
     XElement persPolicy = xmlDoc.Descendants("PersPolicy").First(); 
       persPolicy.Add(new XElement("CreditScoreInfo", 
        new XElement("CreditScore", aDataRow.ItemArray.GetValue(2)), 
        new XElement("CreditScoreDt", aDataRow.ItemArray.GetValue(1)))); 
        //,new XElement("ScoredName", StrName))); 
    } 
} 

Answer 1

你可以试试这个作为替代方式：

XmlWriterSettings settings = new XmlWriterSettings(); 
settings.Encoding = new UTF8Encoding(false); 

using (XmlWriter writer = XmlWriter.Create(FilePrep.CompletedDirectory + File.Name, settings)) 
{ 
    xmlDoc.Save(writer); 
    writer.Close(); 
} 

• http://msdn.microsoft.com/en-us/library/bb336977.aspx