The following code will manually load and validate your XML against a schema file programmatically, allowing you to deal with any resulting errors and/or warnings.
//Read in the schema document
using (XmlReader schemaReader = XmlReader.Create("schema.xsd"))
{
XmlSchemaSet schemaSet = new XmlSchemaSet();
//add the schema to the schema set
schemaSet.Add(XmlSchema.Read(schemaReader,
new ValidationEventHandler(
delegate(Object sender, ValidationEventArgs e)
{
}
)));
//Load and validate against the programmatic schema set
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.Schemas = schemaSet;
xmlDocument.Load("something.xml");
xmlDocument.Validate(new ValidationEventHandler(
delegate(Object sender, ValidationEventArgs e)
{
//Report or respond to the error/warning
}
));
}
Now obviously you desire to have the classes generated by xsd.exe to do this automatically and while loading (the above approach would require a second handling of the XML file), but a pre-load validate would allow you to programmatically detect a malformed input file.