C Sharp - Validating XML data

using System;
using System.Xml;
using System.Xml.Schema;

class XmlXsdValidator
{
    public static void ValidateXmlAgainstXsd(string xmlFilePath, string[] xsdFilePaths, string[] targetNamespaces)
    {
        try
        {
            Console.WriteLine();
            Console.WriteLine($"-- validate against {string.Join(", ", xsdFilePaths)} --");
            Console.WriteLine();

            // Create XML schema set
            XmlSchemaSet schemas = new XmlSchemaSet();
            for (int i = 0; i < xsdFilePaths.Length; i++)
            {
                schemas.Add(targetNamespaces[i], xsdFilePaths[i]);
            }

            // Create XML document
            XmlDocument document = new XmlDocument();
            document.Schemas = schemas;

            // Load XML file
            document.Load(xmlFilePath);

            // Validation event handler
            ValidationEventHandler eventHandler = new ValidationEventHandler(ValidationCallback);

            // Validate XML document
            document.Validate(eventHandler);

            Console.WriteLine("XML validation completed successfully.");
        }
        catch (Exception ex)
        {
            Console.WriteLine($"Error during XML validation: {ex.Message}");
        }
    }



    // Callback method to handle validation errors
    private static void ValidationCallback(object sender, ValidationEventArgs args)
    {
        if (args.Severity == XmlSeverityType.Error)
        {
            Console.WriteLine($"Validation Error: {args.Message}");
        }
        else if (args.Severity == XmlSeverityType.Warning)
        {
            Console.WriteLine($"Validation Warning: {args.Message}");
        }
    }

    // Main method for demonstration
    public static void Main(string[] args)
    {
        string xmlFilePath = @"C:\d\dev\calpers457\TylerToCalPers457\Data\20241224093518_260_10006.xml";
        string[] xsdFilePaths = {
            @"C:\d\dev\calpers457\TylerToCalPers457\Data\SoapEnvelope.xsd",
            @"C:\d\dev\calpers457\TylerToCalPers457\Data\CommonUtilitiesV1.xsd",
            @"C:\d\dev\calpers457\TylerToCalPers457\Data\PayrollRetirementV1.xsd",
            @"c:\d\dev\calpers457\TylerToCalPers457\Data\RetirementHealthTransactionsV1.xsd"
        };
        string[] targetNamespaces = {
            http://schemas.xmlsoap.org/soap/envelope/,
            http://calpers.ca.gov/PSR/CommonUtilitiesV1,
            http://calpers.ca.gov/PSR/PayrollRetirementV1,
            http://calpers.ca.gov/PSR/RetirementHealthTransactionsV1
        };

        ValidateXmlAgainstXsd(xmlFilePath, xsdFilePaths, targetNamespaces);

    }
}

Notice the references to the xsd files. The last one isn’t even in the document. But it is part of payroll retirement v1.