C# Validating XML using Schemas

ValidateXMLUsingSchema.cs

using System;
using System.IO;
using System.Xml.Linq;
using System.Xml.Schema;

namespace XmlValidation
{
    class Program
    {
        static void Main(string[] args)
        {
            string xmlFile = @""C:\TestXml.xml"";
            string schemaFile = @""C:\TestXsd.xsd"";

            bool isValid = false;
            Exception ex = null;
            if (ValidateXML(xmlFile, schemaFile, out isValid, out ex))
            {
                if (isValid)
                    Console.WriteLine(""SUCCESS"");
                else
                    Console.WriteLine(ex.Message);
            }
            else
                Console.WriteLine(ex.Message);

            Console.ReadLine();
        }

        static void SchemaValidationEventHandler(object sender, ValidationEventArgs e)
        {
            if (e.Severity == XmlSeverityType.Error)
            {
                throw e.Exception;
            }
        }

        static bool ValidateXML(string xmlFile, string schemaFile, out bool isValid, out Exception ex)
        {
            bool ret = true;

            isValid = true;
            ex = null;

            Exception exValidate = null;
            bool resultValidate = true;

            try
            {
                XDocument xDoc = XDocument.Load(xmlFile, LoadOptions.PreserveWhitespace);

                FileStream fs = new FileStream(schemaFile, FileMode.Open, FileAccess.Read);
                XmlSchema schema = XmlSchema.Read(fs, SchemaValidationEventHandler);

                XmlSchemaSet schemas = new XmlSchemaSet();
                schemas.Add(schema);

                xDoc.Validate(schemas, (o, e) =>
                {
                    exValidate = e.Exception;
                    resultValidate = false;
                });

                isValid = resultValidate;
                ex = exValidate;
            }
            catch (Exception e)
            {
                ex = e;
                ret = false;
            }

            return ret;
        }
    }
}

Note:

To create the schema, import the XML file into Visual Studio, open it, go to menu item XML and select ""Create Schema"".

Might need to change stuff like maxOccurs, minOccurs according to your needs.