ExpandoObjectHelper

ExpandoObjectHelper.cs

using System;
using System.Collections.Generic;
using System.Dynamic;
using System.Linq;
using System.Xml.Linq;

namespace ToolBelt.Dynamic
{
    //
    // This class came from http://www.codeproject.com/Articles/461677/Creating-a-dynamic-object-from-XML-using-ExpandoOb
    // 
    // The original in the article had bugs and was way more code than was needed to get the job done.
    //
    
    public static class ExpandoObjectHelper
    {
        public static void ParseXmlToDynamic(dynamic obj, XElement element, IList<string> knownLists = null)
        {
            var childElements = element.Elements();
            
            foreach (var childElement in childElements)
            {
                string elementName = childElement.Name.LocalName;
                
                if (childElement.HasElements)
                {
                    if (knownLists != null && knownLists.Contains(elementName))
                    {
                        var list = new List<dynamic>();
                        
                        foreach (var listElement in childElements)
                        {
                            var listObj = new ExpandoObject();
                            
                            ParseXmlToDynamic(listObj, listElement, knownLists);
                            list.Add(listObj);
                        }
                        
                        AddProperty(obj, elementName, list);
                    }
                    else
                    {
                        var childObj = new ExpandoObject();
                        ParseXmlToDynamic(childObj, childElement, knownLists);
                        AddProperty(obj, elementName, childObj);
                    }
                }
                else
                {
                    AddProperty(obj, elementName, element.Value.Trim());
                }
            }

            foreach (var attribute in element.Attributes())
            {
                AddProperty(obj, attribute.Name.LocalName, attribute.Value.Trim());
            }
        }

        private static void AddProperty(dynamic parent, string name, object value)
        {
            if (parent is List<dynamic>)
            {
                (parent as List<dynamic>).Add(value);
            }
            else
            {
                (parent as IDictionary<string, object>)[name] = value;
            }
        }
    }
}