Get all elements from the XML schema.

Description

Demo Code


using System.Xml.Schema;
using System.Xml;
using System.Text;
using System.Linq;
using System.Diagnostics;
using System.Collections.Generic;
using System.Collections;
using System;/*  w  w  w  . ja v a  2 s . c om*/

public class Main{
        public static List<XmlSchemaElement> GetAllElements(XmlSchemaObject obj, bool recursive, List<XmlSchemaElement> allElements)
        {
            List<XmlSchemaElement> elements  = new List<XmlSchemaElement>(); 

            // Element
            if (obj.GetType().Equals(typeof(XmlSchemaElement)))
            {
                XmlSchemaElement element  = (XmlSchemaElement)obj;

                XmlSchemaComplexType complexType = element.ElementSchemaType as XmlSchemaComplexType;

                if (complexType != null)
                {
                    #region sequence
                    /// Get the sequence particle of the complex type.
                    XmlSchemaSequence sequence = complexType.ContentTypeParticle as XmlSchemaSequence;
                    if (sequence != null)
                    {
                        // Iterate over each XmlSchemaElement in the Items collection.
                        foreach (XmlSchemaObject childElement in sequence.Items)
                        {
                            elements = GetElements(childElement, elements, recursive, allElements);
                        }
                    }

                    #endregion

                    #region choice
                    // check if it is e choice
                    XmlSchemaChoice choice = complexType.ContentTypeParticle as XmlSchemaChoice;
                    if (choice != null)
                    {
                        // Iterate over each XmlSchemaElement in the Items collection.
                        foreach (XmlSchemaObject childElement in choice.Items)
                        {
                            elements = GetElements(childElement, elements, recursive, allElements);
                        }
                    }
                    #endregion
                }
            }

            if (obj.GetType().Equals(typeof(XmlSchemaComplexType)))
            {
                XmlSchemaComplexType complexType = obj as XmlSchemaComplexType;

                if (complexType != null)
                {
                    #region sequence
                    /// Get the sequence particle of the complex type.
                    XmlSchemaSequence sequence = complexType.ContentTypeParticle as XmlSchemaSequence;
                    if (sequence != null)
                    {
                        // Iterate over each XmlSchemaElement in the Items collection.
                        foreach (XmlSchemaObject childElement in sequence.Items)
                        {
                            elements = GetElements(childElement, elements, recursive, allElements);
                        }
                    }

                    #endregion

                    #region choice
                    // check if it is e choice
                    XmlSchemaChoice choice = complexType.ContentTypeParticle as XmlSchemaChoice;
                    if (choice != null)
                    {
                        // Iterate over each XmlSchemaElement in the Items collection.
                        foreach (XmlSchemaObject childElement in choice.Items)
                        {
                            elements = GetElements(childElement, elements, recursive, allElements);
                        }
                    }
                    #endregion
                }
            }

            if (obj is XmlSchemaGroup)
            {
                XmlSchemaGroup group = obj as XmlSchemaGroup;

              #region sequence
                    /// Get the sequence particle of the complex type.
                    XmlSchemaSequence sequence = group.Particle as XmlSchemaSequence;
                    if (sequence != null)
                    {
                        // Iterate over each XmlSchemaElement in the Items collection.
                        foreach (XmlSchemaObject childElement in sequence.Items)
                        {
                            elements = GetElements(childElement, elements, recursive, allElements);
                        }
                    }

              #endregion

                #region choice
                // check if it is e choice
                XmlSchemaChoice choice = group.Particle as XmlSchemaChoice;
                if (choice != null)
                {
                    // Iterate over each XmlSchemaElement in the Items collection.
                    foreach (XmlSchemaObject childElement in choice.Items)
                    {
                        elements = GetElements(childElement, elements, recursive, allElements);
                    }
                }
                #endregion

            }

            //if (obj is XmlSchemaSequence)
            //{
            //    // Iterate over each XmlSchemaElement in the Items collection.
            //    foreach (XmlSchemaObject childElement in ((XmlSchemaSequence)obj).Items)
            //    {
            //        elements = GetAllElements(childElement, recursive, allElements);
            //    }
            //}

            //if (obj is XmlSchemaChoice)
            //{
            //    // Iterate over each XmlSchemaElement in the Items collection.
            //    foreach (XmlSchemaObject childElement in ((XmlSchemaChoice)obj).Items)
            //    {
            //        elements = GetAllElements(childElement, recursive, allElements);
            //    }
            //}

        
            return elements;

        }
        /// <summary>
        /// Get all elements from the schema.
        /// </summary>
        /// <param name="schema"></param>
        /// <returns></returns>
        public static List<XmlSchemaElement> GetAllElements(XmlSchema schema)
        {
            List<XmlSchemaElement> elements = new List<XmlSchemaElement>();

            foreach (XmlSchemaElement item in schema.Elements.Values)
            {
                if (item is XmlSchemaElement)
                {
                    Debug.WriteLine("                          ");
                    Debug.WriteLine("__________________________");
                    Debug.WriteLine(item.Name);
                    Debug.WriteLine("---------------------------------");
                    //elements.Add((XmlSchemaElement)item);
                    elements = GetElements((XmlSchemaElement)item, elements, true, new List<XmlSchemaElement>());
                }
            }

            return elements;
        }
}
Get all elements from the XML schema. - CSharp System.Xml

Description

Demo Code

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