Question

I have an xml file and I am loading it in DataTable using DataSet.ReadXML. This XML has an internal DTD Defined. I thought DataTable.ReadXML Validates an XML before loading it in memory. Is it the case ?

Do I need to set some property within my dataset to make it validate Xml against the DTD Defined or Do I need to validate it using some othe XML class

<?xml version="1.0" standalone="yes"?>

<!DOCTYPE Resources [
<!ELEMENT Resources (Resource)+>
<!ELEMENT Resource (ResourceName,ResourceEmail)>
<!ELEMENT ResourceName (#PCDATA)>
<!ELEMENT ResourceEmail (#PCDATA)>

]>

<Resources>
<Resource>
<ResourceName>test</ResourceName>
<ResourceEmail>[e-mail]</ResourceEmail>
</Resource>
</Resources>

Answer 1

You can use this code to validate your XML against a DTD

XmlReaderSettings settings = new XmlReaderSettings();
               settings.DtdProcessing = DtdProcessing.Parse;
               settings.ValidationType = ValidationType.DTD;

               string data = null;
               XmlReader validatingReader = XmlReader.Create(File.Open("C:\\check\\TEMP_DTD.XML", FileMode.Open), settings, data);

                DataSet ds = new DataSet();
                ds.ReadXml(validatingReader);