Csharp/CSharp Tutorial/XML/XmlSchema

Create Xml schema

using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using System.Xml.Schema;
    public class MainClass
    {
        public static void Main()
        {
            XmlSchema schema = new XmlSchema();
            XmlSchemaSimpleType nametype = new XmlSchemaSimpleType();
            XmlSchemaSimpleTypeRestriction nameRes = new XmlSchemaSimpleTypeRestriction();
            nameRes.BaseTypeName = new XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema");
            XmlSchemaMinLengthFacet nameFacet1 = new XmlSchemaMinLengthFacet();
            nameFacet1.Value = "3";
            XmlSchemaMaxLengthFacet nameFacet2 = new XmlSchemaMaxLengthFacet();
            nameFacet2.Value = "255";
            nameRes.Facets.Add(nameFacet1);
            nameRes.Facets.Add(nameFacet2);
            nametype.Content = nameRes;
            XmlSchemaSimpleType phonetype = new XmlSchemaSimpleType();
            XmlSchemaSimpleTypeRestriction phoneRes = new XmlSchemaSimpleTypeRestriction();
            phoneRes.BaseTypeName = new XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema");
            XmlSchemaMaxLengthFacet phoneFacet1 = new XmlSchemaMaxLengthFacet();
            phoneFacet1.Value = "20";
            phoneRes.Facets.Add(phoneFacet1);
            phonetype.Content = phoneRes;
            XmlSchemaSimpleType notestype = new XmlSchemaSimpleType();
            XmlSchemaSimpleTypeRestriction notesRes = new XmlSchemaSimpleTypeRestriction();
            notesRes.BaseTypeName = new XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema");
            XmlSchemaMaxLengthFacet notesFacet1 = new XmlSchemaMaxLengthFacet();
            notesFacet1.Value = "500";
            notesRes.Facets.Add(notesFacet1);
            notestype.Content = notesRes;
            XmlSchemaComplexType employeetype = new XmlSchemaComplexType();
            XmlSchemaSequence sequence = new XmlSchemaSequence();
            XmlSchemaElement firstname = new XmlSchemaElement();
            firstname.Name = "firstname";
            firstname.SchemaType = nametype;
            XmlSchemaElement homephone = new XmlSchemaElement();
            homephone.Name = "homephone";
            homephone.SchemaType = phonetype;
            XmlSchemaElement notes = new XmlSchemaElement();
            notes.Name = "notes";
            notes.SchemaType = notestype;
            sequence.Items.Add(firstname);
            sequence.Items.Add(homephone);
            sequence.Items.Add(notes);
            employeetype.Particle = sequence;
            XmlSchemaAttribute employeeid = new XmlSchemaAttribute();
            employeeid.Name = "employeeid";
            employeeid.SchemaTypeName = new XmlQualifiedName("int", "http://www.w3.org/2001/XMLSchema");
            employeeid.Use = XmlSchemaUse.Required;
            employeetype.Attributes.Add(employeeid);
            XmlSchemaComplexType complextype = new XmlSchemaComplexType();
            XmlSchemaSequence sq = new XmlSchemaSequence();
            XmlSchemaElement employee = new XmlSchemaElement();
            employee.Name = "employee";
            employee.SchemaType = employeetype;
            employee.MinOccurs = 0;
            employee.MaxOccursString = "unbounded";
            sq.Items.Add(employee);
            complextype.Particle = sq;
            XmlSchemaElement employees = new XmlSchemaElement();
            employees.Name = "employees";
            employees.SchemaType = complextype;
            schema.Items.Add(employees);
            XmlSchemaSet set = new XmlSchemaSet();
            set.Add(schema);
            set.rupile();
            XmlTextWriter writer=new XmlTextWriter("yourvalue",null);
            schema.Write(writer);
            writer.Close();
        }
    }

Register Schema validation event

using System;
using System.IO;
using System.Xml;
using System.Xml.Schema;
using System.Collections.Generic;
using System.Text;

    class Program
    {
        static void Main(string[] args)
        {
            XmlDocument items = new XmlDocument();
            items.Load("items.xml");
            XmlSchema schema = XmlSchema.Read(new FileStream("items.xsd",FileMode.Open), new ValidationEventHandler(OnSchemaValidate));
            items.Schemas.Add(schema);
            items.Validate(new ValidationEventHandler(OnValidate));
            
        }
        static void OnValidate(object sender, ValidationEventArgs vargs)
        {
            Console.WriteLine(vargs.Message);
        }
        static void OnSchemaValidate(object sender, ValidationEventArgs vargs)
        {
            Console.WriteLine(vargs.Message);
        }
    }

Schema Validation

using System;
using System.IO;
using System.Xml;
using System.Xml.Schema;
using System.Collections.Generic;
using System.Text;

    class Program
    {
        static void Main(string[] args)
        {
            XmlDocument items = new XmlDocument();
            items.Load("items.xml");
            XmlSchema schema = XmlSchema.Read(new FileStream("items.xsd",FileMode.Open), new ValidationEventHandler(OnSchemaValidate));
            items.Schemas.Add(schema);
            items.Validate(new ValidationEventHandler(OnValidate));
            
        }
        static void OnValidate(object sender, ValidationEventArgs vargs)
        {
            Console.WriteLine(vargs.Message);
        }
        static void OnSchemaValidate(object sender, ValidationEventArgs vargs)
        {
            Console.WriteLine(vargs.Message);
        }
    }