I’m working with C# and .NET 8.0.6.

I have an XSD that declares a “root” element with xs:token content. When I validate a document with an instance element that has padded content, the padding is preserved? I’m expecting the padding (leading and trailing whitespace) to be removed.

The XSD is:

<?xml version='1.0'?>

<xs:schema
    targetNamespace = "http://example.org/scratch"
    xmlns           = "http://example.org/scratch"
    xmlns:xs        = "http://www.w3.org/2001/XMLSchema">

<xs:element name="root" type="xs:token"/>

</xs:schema>

The instance is:

<?xml version='1.0'?>

<pre:root xmlns:pre="http://example.org/scratch">   abc   </pre:root>

My code that does the following:

1. Reads the XSD as a System.Xml.Schema.XmlSchema.
2. Adds the schema to a System.Xml.Schema.SchemaSet which is then compiled.
3. Creates an XmlReader (XsdValidatingReader) using:

    var xmlReaderSettings = new XmlReaderSettings
    {
        CheckCharacters = true,
        DtdProcessing   = DtdProcessing.Prohibit,
        Schemas         = xmlSchemaSet,
        ValidationType  = ValidationType.Schema,
    };

4. Loads the instance using System.Xml.XmlDocument.Load(xmlReader).

The document object yields:

<?xml version="1.0"?>
<pre:root xmlns:pre="http://example.org/scratch">   abc   </pre:root>

In particular, the XmlDocument.DocumentElement has:

• InnerXml: ”   abc   “
• NamespaceURI: “http://example.org/scratch”
• SchemaInfo.SchemaType.TypeCode: “Token”