Question

I have an xml template document that I need to load into an XmlDocument. eg

myXMLDocument.Load(myXMLFile);

However this is very slow as it loads in the dtd. I have tried both "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd" and a local copy of the dtd. Both take more or less the same time. If I turn of loading the dtd by setting the resolver to null (for example), I then get errors such as "Reference to undeclared entity 'nbsp'" if the document contains these.

I need to use an XmlDocument as I need to manipulate the DOM before outputting the document. How can I get round these problems?

Answer 1

You can avoid the DTD if you return an empty memory stream:

private class DummyResolver : XmlResolver
{
   public override System.Net.ICredentials Credentials
   {
    set
    {
     // Do nothing.
    }
   }

public override object GetEntity(Uri absoluteUri, string role, Type ofObjectToReturn)
   {
    return new System.IO.MemoryStream();
   }
}