"Robert Reineri" <robert123@reineri.org> wrote in message news:#hWVA3OREHA.132@TK2MSFTNGP09.phx.gbl...
> New to the XML world and .NET. I have what I believe to be a simple problem,
> but I have read the .NET docs till I'm blue in the face and still can't
> locate a simple example of how to accomplish this.
>
> I have two strings (C# string type).

> handler to respond when something goes wrong, but the validating reader
> needs a text reader, which needs a string reader and so on.

> I was hoping for something like:
>
> try
> {
> XmlDocument doc = new XmlDocument();
> doc.Load(string xml, string schema);

"Derek Harmon" <loresayer@msn.com> wrote in message news:OuzfzsdREHA.3504@TK2MSFTNGP09.phx.gbl...
> // Create the XmlValidatingReader for the instance document.
> XmlValidatingReader reader = new XmlValidatingReader(
> new XmlTextReader( new StringReader( strXml)));

> // Prepare a DOM document to contain the validated instance document.
> XmlDocument doc = new XmlDocument( );

"Derek Harmon" <loresayer@msn.com> wrote in message
news:OuzfzsdREHA.3504@TK2MSFTNGP09.phx.gbl...
> "Robert Reineri" <robert123@reineri.org> wrote in message
news:#hWVA3OREHA.132@TK2MSFTNGP09.phx.gbl...
> > New to the XML world and .NET. I have what I believe to be a simple
problem,
> > but I have read the .NET docs till I'm blue in the face and still can't
> > locate a simple example of how to accomplish this.
> >
> > I have two strings (C# string type).
>
> The likely reason why you're having difficulty finding such an example
> is because holding XML in a String is very inefficient. Your XML
> probably comes from some other source that can be represented
> in a Stream or Reader, why not use that?
>
> : :
> > handler to respond when something goes wrong, but the validating reader
> > needs a text reader, which needs a string reader and so on.
>
> Looks like you're already aware of the solution.
>
> > I was hoping for something like:
> >
> > try
> > {
> > XmlDocument doc = new XmlDocument();
> > doc.Load(string xml, string schema);
>
> That would encourage inefficient programming practices. ;-)
>
> Where there is support in the .NET Framework for parsing XML from
> a UTF-16 String representation, the methods are conventionally named
> with an -Xml ending (for example, ReadXml( ) or LoadXml( )). Here
> the undecorated method name (Read( ) or Load( )) always operates
> on Streams, Readers, or filename/URLs in a String.
>
> Therefore, Load( string) always means a filename/URL, whereas
> LoadXml( string) means the String contains UTF-16 encoded XML.
>
> If you need a convenience method just to wrap the few lines of code
> necessarily to extract the XML from the String, you can try this,
>
> - - - ValidatingXmlLoader.cs
> using System;
> using System.IO;
> using System.Xml;
>
> public sealed class ValidatingXmlLoader
> {
> public static XmlDocument Load( string strXml, string strSchemaXml)
> {
> // Prepare the XmlSchema, Read() throws an XmlException for any
XML
> // errors present in the .XSD
> XmlSchema schema = new XmlSchema( );
>
> // No ValidationEventHandler necessary if you just want
XmlException thrown
> // on an XML error in the instance document, that's the default
behavior.
> schema.Read( new StringReader( strSchemaXml), null);
>
> // Create the XmlValidatingReader for the instance document.
> XmlValidatingReader reader = new XmlValidatingReader(
> new XmlTextReader( new StringReader( strXml)));
>
> // Prepare a DOM document to contain the validated instance
document.
> XmlDocument doc = new XmlDocument( );
>
> // Load the DOM document; if the strXml is not valid an
XmlException will
> // be thrown and no document will be returned.
> doc.Load( reader);
>
> return doc;
> }
> }
> - - -
>
> In your desired example code, you'd use this sample class like this,
>
> try
> {
> XmlDocument doc = ValidatingXmlLoader.Load( xml, schema);
> }
> catch
> {
> Debug.WriteLine( "The validation failed.");
> }
>
>
>
> Derek Harmon
>
>