How can i remove BOM from XmlTextWriter using C#

Question

Hi, i need to remove the BOM from an XML file that is being created. I have tried using the new UTF8Encoding(false) method but it doesnt work. Here is the code i have:

XmlDocument xmlDoc = new XmlDocument();
        XmlTextWriter xmlWriter = new XmlTextWriter(filename, new UTF8Encoding(false));
        xmlWriter.Formatting = Formatting.Indented;
        xmlWriter.WriteProcessingInstruction("xml", "version='1.0' encoding='UTF-8'");
        xmlWriter.WriteStartElement("items");
        xmlWriter.Close();
        xmlDoc.Load(filename);
        XmlNode root = xmlDoc.DocumentElement;
        XmlElement item = xmlDoc.CreateElement("item");
        root.AppendChild(item);
        XmlElement itemCategory = xmlDoc.CreateElement("category");
        XmlText itemCategoryText = xmlDoc.CreateTextNode("test");
        item.AppendChild(itemCategory);
        itemCategory.AppendChild(itemCategoryText);
        xmlDoc.Save(filename);

Any help would be appreciated, am almost finished on this project and its holding me up. Thanks in advance. Chris

Answer 1

I'd write the XML to a string(builder) instead and then write that string to file.

Answer 2

You're saving the file twice - once with XmlTextWriter and once with xmlDoc.Save. Saving from the XmlTextWriter isn't adding a BOM - saving with xmlDoc.Save is.

Just save to a TextWriter instead, so that you can specify the encoding again:

using (TextWriter writer = new StreamWriter(filename, new UTF8Encoding(false))
{
    xmlDoc.Save(writer);
}