How to deep search through every field in a complex object?

How to deep search through every field in a complex object? - c#

I'm using C#, ASP.NET, I use UPS API Tracking to get the Delivery Info, upon making the request, I got back an object (trackResponse) which is very complex and has a lot of field/property or other object embedded inside it.
How do I program to search for every possible value field (string/int/double) in that object?
Basically I want a method like this:
public static bool FindValueInObject(object Input, object SearchValue)
{
Type MyType = Input.GetType();
var props = typeof(MyType).GetProperties();
foreach (PropertyInfo propertyInfo in props)
{
//Console.WriteLine(string.Format("Name: {0} PropertyValue: {1}", propertyInfo.Name, propertyInfo.GetValue(mco, null)));
Type ObjectType = propertyInfo.GetType();
Type SearchType = SearchValue.GetType();
object ObjectValue = propertyInfo.GetValue(Input, null);
if (ObjectType == SearchType)
{
if(ObjectValue == SearchValue)
{
return true;
}
}
else
{
FindValueInObject(ObjectValue, SearchValue);
}
}
return false;
}
But the code above didn't work. Please take a look.

Here ya go....
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
namespace ConsoleApplication3
{
class Program
{
static void Main(string[] args)
{
var mco = new MyComplexObject();
mco.MyDate1 = DateTime.Now;
mco.MyDate2 = DateTime.Now;
mco.MyDate3 = DateTime.Now;
mco.MyString1 = "String1";
mco.MyString2 = "String1";
mco.MyString3 = "String1";
var props = typeof(MyComplexObject).GetProperties();
foreach (PropertyInfo propertyInfo in props)
{
Console.WriteLine(string.Format("Name: {0} PropertyValue: {1}", propertyInfo.Name, propertyInfo.GetValue(mco, null)));
}
Console.ReadLine();
}
}
public class MyComplexObject
{
public string MyString1 { get; set; }
public string MyString2 { get; set; }
public string MyString3 { get; set; }
public DateTime MyDate1 { get; set; }
public DateTime MyDate2 { get; set; }
public DateTime MyDate3 { get; set; }
}
}

Related

Expression Bodied fields (read-only) in structs does not get copied using Reflection

I am trying to implement object deep/shallow cloning service using Reflection.
Using the function Clone<T> Simple class is being copied with all the required fields, but in case of SimpleStruct Computed field does not get copied.
What is the difference between struct and class when defining read-only fields, and how this can be solved ?
Thanks in advance.
public T Clone<T>(T source)
{
var obj = Activator.CreateInstance<T>();
var type = source.GetType();
foreach (var property in type.GetProperties())
{
if (!property.IsValid())
continue;
if (property.SetMethod != null)
{
property.SetValue(obj, property.GetValue(source));
}
}
foreach (var field in type.GetFields())
{
if (field.IsPublic == false || !field.IsValid())
continue;
field.SetValue(obj, field.GetValue(source));
}
return obj;
}
public struct SimpleStruct
{
public int I;
public string S { get; set; }
[Cloneable(CloningMode.Ignore)]
public string Ignored { get; set; }
public string Computed => S + I;
public SimpleStruct(int i, string s)
{
I = i;
S = s;
Ignored = null;
}
}
public class Simple
{
public int I;
public string S { get; set; }
[Cloneable(CloningMode.Ignore)]
public string Ignored { get; set; }
[Cloneable(CloningMode.Shallow)]
public object Shallow { get; set; }
public string Computed => S + I + Shallow;
}

Easiest way to access a class list

First of all, it's my first post here so sorry if it's wrong or anything just warn me it will be better next time.
Second I speak french x).
Ok it's not a problem but I would like to have a better way to acces my data who are stored in a mother class. I know i'm not clear let me show you maybe you will understand.
Main.cs :
namespace Xahor
{
class Program
{
static void Main(string[] args)
{
TProduct test = new TProduct();
test.FillData(1, "Apple", "4857", "A tasty apple.", "Green", false, true);
test.PrintData();
}
}
}
TListNF.cs :
namespace Xahor
{
public class TListNF
{
public TListNF(int iProductID = 0, string sProductName = "", string sProductIDNum = "", string sProductDesc = "", string sColor = "", bool bMake = false, bool bCustom = false)
{
this.iProductID = iProductID;
this.sProductName = sProductName;
this.sProductIDNum = sProductIDNum;
this.sProductDesc = sProductDesc;
this.sColor = sColor;
this.bMake = bMake;
this.bCustom = bCustom;
}
public int iProductID { get; set; }
public string sProductName { get; set; }
public string sProductIDNum { get; set; }
public string sProductDesc { get; set; }
public string sColor { get; set; }
public bool bMake { get; set; }
public bool bCustom { get; set; }
protected List<TListNF> ItemList = new List<TListNF>();
}
}
TProduct.cs :
namespace Xahor
{
class TProduct : TListNF
{
public void FillData(int iProductID, string sProductName, string sProductIDNum, string sProductDesc, string sColor, bool bMake, bool bCustom)
{
ItemList.Add(new TListNF(iProductID, sProductName, sProductIDNum, sProductDesc, sColor, bMake, bCustom));
}
public void PrintData()
{
foreach (TListNF t in ItemList)
{
//Here where * is each of the accessor
Console.WriteLine(t.*.ToString());
Console.WriteLine(t.*.ToString());
...
}
}
}
}
So, basicly what I don't know how to do is to get an easier acces to the getter what it would normally be a foreach so each time we enter the loop the var t get the value
Resolved
#Nair
Thank you I've figured out with the post
How to loop through all the properties of a class?
But your answer help by the way if anyone else need somethings like this I,ve used
foreach (PropertyInfo p in list.GetType().GetProperties())
{
Console.WriteLine(p.Name + " : " + p.GetValue(list));
}
//Where list is the List<ClassName_With_Accesor> list;

You can achieve it through reflecting individual properties in the type. You may need to add more constructive logic as the intention is to show the idea.
foreach (TListNF t in ItemList)
{
foreach (PropertyInfo proInfo in t.GetType().GetProperties())
{
Console.WriteLine(proInfo.GetGetMethod().Invoke(t,null).ToString());
}
}

Of course the answer #Nair is correct. But usually it's bad practice to use reflection to for easy purposes. This is because of access rights of your application and so on. Here two other options you might try.
Option 1: Yield the properties in an own method (see TListNF.GetItemInfo). Disadvantage: You have to add another yield it in the implementation of GetItemInfo everytime you add another property to your TListNF class. Advantage: No use of reflection at all.
Option 2: Use an own attribute (see MyInfoAttribute) to mark the properties that are of interest to you. Usually classes do have several more attribute that you don't want to print. Advantage: Only marked attributes are printed: Disadvantage: Use of reflection.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;
namespace ConsoleApplication1
{
class Program
{
[AttributeUsage(AttributeTargets.Property)]
public class MyInfoAttribute : Attribute
{
}
public class TListNF
{
public TListNF(int iProductID = 0, string sProductName = "", string sProductIDNum = "", string sProductDesc = "", string sColor = "", bool bMake = false, bool bCustom = false)
{
this.iProductID = iProductID;
this.sProductName = sProductName;
this.sProductIDNum = sProductIDNum;
this.sProductDesc = sProductDesc;
this.sColor = sColor;
this.bMake = bMake;
this.bCustom = bCustom;
}
[MyInfo]
public int iProductID { get; set; }
[MyInfo]
public string sProductName { get; set; }
[MyInfo]
public string sProductIDNum { get; set; }
[MyInfo]
public string sProductDesc { get; set; }
[MyInfo]
public string sColor { get; set; }
[MyInfo]
public bool bMake { get; set; }
[MyInfo]
public bool bCustom { get; set; }
protected List<TListNF> ItemList = new List<TListNF>();
public IEnumerable<string> GetItemInfo()
{
yield return iProductID.ToString();
yield return sProductName;
yield return sProductIDNum;
yield return sProductDesc;
yield return sColor;
yield return bMake.ToString();
yield return bCustom.ToString();
}
}
class TProduct : TListNF
{
public void FillData(int iProductID, string sProductName, string sProductIDNum, string sProductDesc, string sColor, bool bMake, bool bCustom)
{
ItemList.Add(new TListNF(iProductID, sProductName, sProductIDNum, sProductDesc, sColor, bMake, bCustom));
}
public void PrintData()
{
foreach (TListNF item in ItemList)
{
foreach (string info in item.GetItemInfo())
Console.WriteLine(info);
}
}
public void PrintDataReflection()
{
Type type = typeof(MyInfoAttribute);
foreach (TListNF item in ItemList)
{
foreach (PropertyInfo proInfo in item.GetType().GetProperties().Where(p => p.GetCustomAttributes(type, true).Length > 0))
{
Console.WriteLine(proInfo.GetGetMethod().Invoke(item, null).ToString());
}
}
}
}
static void Main(string[] args)
{
var test = new TProduct();
test.FillData(1, "Apple", "4857", "A tasty apple.", "Green", false, true);
test.PrintData();
test.PrintDataReflection();
Console.ReadKey();
}
}
}

Getting values, by reflection, of inner objects from a class

Heys, guys!
I'm trying to get values from my objects by reflection, buy I have a problem: I can get a value from the base object, but I can't get values from inner objects, like this:
public class Employee
{
public long EmployeeID { get; set; }
public string EmployeeNumber { get; set; }
public DateTime EmployeeAdmissionDate { get; set; }
public Person EmployeePerson { get; set; }
}
public class Person
{
public long PersonID { get; set; }
public string PersonName { get; set; }
public DateTime PersonBirthday { get; set; }
}
private static void GetDTOProperties(IDictionary<string, object> dicProperties, Type objectToSerialize)
{
Type typeOfObject = objectToSerialize is Type ? objectToSerialize as Type : objectToSerialize.GetType();
PropertyInfo[] properties = typeOfObject.GetProperties();
foreach (PropertyInfo property in properties)
{
if (!property.PropertyType.IsClass || property.PropertyType.Equals(typeof(string)))
dicProperties.Add(string.Format("{0}_{1}", property.DeclaringType.Name.ToLower(), property.Name.ToLower()), property.GetValue(typeOfObject, null));
else
GetDTOProperties(dicProperties, property.PropertyType);
}
}
public static void Main(string[] args)
{
Employee objEmployee = new Employee();
objEmployee.EmployeeID = 1;
objEmployee.EmployeeNumber = 457435;
objEmployee.EmployeeAdmissionDate = DateTime.Now;
objEmployee.EmployeePerson = new EmployeePerson();
objEmployee.EmployeePerson.PersonID = 123;
objEmployee.EmployeePerson.PersonName = "Kiwanax";
objEmployee.EmployeePerson.PersonBirthday = DateTime.Now;
IDictionary<string, object> dicProperties= new Dictionary<string, object>();
GetDTOProperties(dicPropriedades, objEntidadeAluno.GetType());
foreach (string m in dicProperties.Keys)
Console.WriteLine(m + " - " + dicProperties[m]);
Console.ReadLine();
}
The base values I can get, but the values of "Person" inner object I can't. Anyone has idea? Thanks!!

You can update your method like this:
private static void GetDTOProperties(IDictionary<string, object> dicProperties, object objectToSerialize)
{
Type typeOfObject = objectToSerialize is Type ? objectToSerialize as Type : objectToSerialize.GetType();
PropertyInfo[] properties = typeOfObject.GetProperties();
foreach (PropertyInfo property in properties)
{
object val = objectToSerialize is Type ? property.PropertyType : property.GetValue(objectToSerialize, null);
if (!property.PropertyType.IsClass || property.PropertyType.Equals(typeof(string)))
{
dicProperties.Add(string.Format("{0}_{1}", property.DeclaringType.Name.ToLower(), property.Name.ToLower()), val);
}
else
GetDTOProperties(dicProperties, val);
}
}
So there wont ba any problems with objects and you can send actual objects to that method. If you send type of object, than you will get Types as Values in dictionary

How to convert objects in reflection

I have this piece of code which is working fine,
My question is if i want to add another element to the xml named 'Allow'. the Allow Element can get the values of 'True' or 'False'. I want to convert it to a boolean property in my Plugin class, meaning the Plugin will have the additional property:
public bool Allow { get; set; }
is there a possibility to convert it?
can you give a code example?
using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using System.Xml.Linq;
using System.Reflection;
using System.Text;
namespace WindowsFormsApplication1
{
public abstract class Plugin
{
public string Type { get; set; }
public string Message { get; set; }
}
public class FilePlugin : Plugin
{
public string Path { get; set; }
}
public class RegsitryPlugin : Plugin
{
public string Key { get; set; }
public string Name { get; set; }
public string Value { get; set; }
}
static class MyProgram
{
[STAThread]
static void Main(string[] args)
{
string xmlstr =#"
<Client>
<Plugin Type=""FilePlugin"">
<Message>i am a file plugin</Message>
<Path>c:\</Path>
</Plugin>
<Plugin Type=""RegsitryPlugin"">
<Message>i am a registry plugin</Message>
<Key>HKLM\Software\Microsoft</Key>
<Name>Version</Name>
<Value>3.5</Value>
</Plugin>
</Client>
";
Assembly asm = Assembly.GetExecutingAssembly();
XDocument xDoc = XDocument.Load(new StringReader(xmlstr));
Plugin[] plugins = xDoc.Descendants("Plugin")
.Select(plugin =>
{
string typeName = plugin.Attribute("Type").Value;
var type = asm.GetTypes().Where(t => t.Name == typeName).First();
Plugin p = Activator.CreateInstance(type) as Plugin;
p.Type = typeName;
foreach (var prop in plugin.Descendants())
{
type.GetProperty(prop.Name.LocalName).SetValue(p, prop.Value, null);
}
return p;
}).ToArray();
//
//"plugins" ready to use
//
}
}
}

change
foreach (var prop in plugin.Descendants())
{
type.GetProperty(prop.Name.LocalName).SetValue(p, prop.Value, null);
}
to
foreach (var prop in plugin.Descendants())
{
var pi = type.GetProperty(prop.Name.LocalName);
object newVal = Convert.ChangeType(prop.Value, pi.PropertyType);
pi.SetValue(p, newVal, null);
}
PS:
use <Allow>true</Allow> not <Allow>True</Allow>

Parse JSON in C#

I'm trying to parse some JSON data from the Google AJAX Search API. I have this URL and I'd like to break it down so that the results are displayed. I've currently written this code, but I'm pretty lost in regards of what to do next, although there are a number of examples out there with simplified JSON strings.
Being new to C# and .NET in general I've struggled to get a genuine text output for my ASP.NET page so I've been recommended to give JSON.NET a try. Could anyone point me in the right direction to just simply writing some code that'll take in JSON from the Google AJAX Search API and print it out to the screen?
EDIT: ALL FIXED! All results are working fine. Thank you again Dreas Grech!
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.ServiceModel.Web;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.IO;
using System.Text;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
GoogleSearchResults g1 = new GoogleSearchResults();
const string json = #"{""responseData"": {""results"":[{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.cheese.com/"",""url"":""http://www.cheese.com/"",""visibleUrl"":""www.cheese.com"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:bkg1gwNt8u4J:www.cheese.com"",""title"":""\u003cb\u003eCHEESE\u003c/b\u003e.COM - All about \u003cb\u003echeese\u003c/b\u003e!."",""titleNoFormatting"":""CHEESE.COM - All about cheese!."",""content"":""\u003cb\u003eCheese\u003c/b\u003e - everything you want to know about it. Search \u003cb\u003echeese\u003c/b\u003e by name, by types of milk, by textures and by countries.""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://en.wikipedia.org/wiki/Cheese"",""url"":""http://en.wikipedia.org/wiki/Cheese"",""visibleUrl"":""en.wikipedia.org"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:n9icdgMlCXIJ:en.wikipedia.org"",""title"":""\u003cb\u003eCheese\u003c/b\u003e - Wikipedia, the free encyclopedia"",""titleNoFormatting"":""Cheese - Wikipedia, the free encyclopedia"",""content"":""\u003cb\u003eCheese\u003c/b\u003e is a food consisting of proteins and fat from milk, usually the milk of cows, buffalo, goats, or sheep. It is produced by coagulation of the milk \u003cb\u003e...\u003c/b\u003e""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.ilovecheese.com/"",""url"":""http://www.ilovecheese.com/"",""visibleUrl"":""www.ilovecheese.com"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:GBhRR8ytMhQJ:www.ilovecheese.com"",""title"":""I Love \u003cb\u003eCheese\u003c/b\u003e!, Homepage"",""titleNoFormatting"":""I Love Cheese!, Homepage"",""content"":""The American Dairy Association\u0026#39;s official site includes recipes and information on nutrition and storage of \u003cb\u003echeese\u003c/b\u003e.""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.gnome.org/projects/cheese/"",""url"":""http://www.gnome.org/projects/cheese/"",""visibleUrl"":""www.gnome.org"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:jvfWnVcSFeQJ:www.gnome.org"",""title"":""\u003cb\u003eCheese\u003c/b\u003e"",""titleNoFormatting"":""Cheese"",""content"":""\u003cb\u003eCheese\u003c/b\u003e uses your webcam to take photos and videos, applies fancy special effects and lets you share the fun with others. It was written as part of Google\u0026#39;s \u003cb\u003e...\u003c/b\u003e""}],""cursor"":{""pages"":[{""start"":""0"",""label"":1},{""start"":""4"",""label"":2},{""start"":""8"",""label"":3},{""start"":""12"",""label"":4},{""start"":""16"",""label"":5},{""start"":""20"",""label"":6},{""start"":""24"",""label"":7},{""start"":""28"",""label"":8}],""estimatedResultCount"":""14400000"",""currentPageIndex"":0,""moreResultsUrl"":""http://www.google.com/search?oe\u003dutf8\u0026ie\u003dutf8\u0026source\u003duds\u0026start\u003d0\u0026hl\u003den-GB\u0026q\u003dcheese""}}, ""responseDetails"": null, ""responseStatus"": 200}";
g1 = JSONHelper.Deserialise<GoogleSearchResults>(json);
Response.Write(g1.content);
}
}
public class JSONHelper
{
public static T Deserialise<T>(string json)
{
T obj = Activator.CreateInstance<T>();
MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(json));
DataContractJsonSerializer serialiser = new DataContractJsonSerializer(obj.GetType());
ms.Close();
return obj;
}
}
/// Deserialise from JSON
[Serializable]
public class GoogleSearchResults
{
public GoogleSearchResults() { }
public GoogleSearchResults(string _unescapedUrl, string _url, string _visibleUrl, string _cacheUrl, string _title, string _titleNoFormatting, string _content)
{
this.unescapedUrl = _unescapedUrl;
this.url = _url;
this.visibleUrl = _visibleUrl;
this.cacheUrl = _cacheUrl;
this.title = _title;
this.titleNoFormatting = _titleNoFormatting;
this.content = _content;
}
string _unescapedUrl;
string _url;
string _visibleUrl;
string _cacheUrl;
string _title;
string _titleNoFormatting;
string _content;
[DataMember]
public string unescapedUrl
{
get { return _unescapedUrl; }
set { _unescapedUrl = value; }
}
[DataMember]
public string url
{
get { return _url; }
set { _url = value; }
}
[DataMember]
public string visibleUrl
{
get { return _visibleUrl; }
set { _visibleUrl = value; }
}
[DataMember]
public string cacheUrl
{
get { return _cacheUrl; }
set { _cacheUrl = value; }
}
[DataMember]
public string title
{
get { return _title; }
set { _title = value; }
}
[DataMember]
public string titleNoFormatting
{
get { return _titleNoFormatting; }
set { _titleNoFormatting = value; }
}
[DataMember]
public string content
{
get { return _content; }
set { _content = value; }
}
}
The code currently compiles and runs perfectly, but isn't returning any results. Could someone help me with returning what I require, the results ready to print out to the screen?
Edit:
Json.NET works using the same JSON and classes as the example above.
GoogleSearchResults g1 = JsonConvert.DeserializeObject<GoogleSearchResults>(json);
Link: Serializing and Deserializing JSON with Json.NET
Related
C# - parsing json formatted data into nested hashtables
Parse JSON array

[Update]
I've just realized why you weren't receiving results back... you have a missing line in your Deserialize method. You were forgetting to assign the results to your obj :
public static T Deserialize<T>(string json)
{
using (MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(json)))
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));
return (T)serializer.ReadObject(ms);
}
}
Also, just for reference, here is the Serialize method :
public static string Serialize<T>(T obj)
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
using (MemoryStream ms = new MemoryStream())
{
serializer.WriteObject(ms, obj);
return Encoding.Default.GetString(ms.ToArray());
}
}
Edit
If you want to use Json.NET here are the equivalent Serialize/Deserialize methods to the code above..
Deserialize:
JsonConvert.DeserializeObject<T>(string json);
Serialize:
JsonConvert.SerializeObject(object o);
This are already part of Json.NET so you can just call them on the JsonConvert class.
Link: Serializing and Deserializing JSON with Json.NET
Now, the reason you're getting a StackOverflow is because of your Properties.
Take for example this one :
[DataMember]
public string unescapedUrl
{
get { return unescapedUrl; } // <= this line is causing a Stack Overflow
set { this.unescapedUrl = value; }
}
Notice that in the getter, you are returning the actual property (ie the property's getter is calling itself over and over again), and thus you are creating an infinite recursion.
Properties (in 2.0) should be defined like such :
string _unescapedUrl; // <= private field
[DataMember]
public string unescapedUrl
{
get { return _unescapedUrl; }
set { _unescapedUrl = value; }
}
You have a private field and then you return the value of that field in the getter, and set the value of that field in the setter.
Btw, if you're using the 3.5 Framework, you can just do this and avoid the backing fields, and let the compiler take care of that :
public string unescapedUrl { get; set;}

I found this approach which parse JSON into a dynamic object, it extends a DynamicObject and JavascriptConverter to turn the string into an object.
DynamicJsonObject
public class DynamicJsonObject : DynamicObject
{
private IDictionary<string, object> Dictionary { get; set; }
public DynamicJsonObject(IDictionary<string, object> dictionary)
{
this.Dictionary = dictionary;
}
public override bool TryGetMember(GetMemberBinder binder, out object result)
{
result = this.Dictionary[binder.Name];
if (result is IDictionary<string, object>)
{
result = new DynamicJsonObject(result as IDictionary<string, object>);
}
else if (result is ArrayList && (result as ArrayList) is IDictionary<string, object>)
{
result = new List<DynamicJsonObject>((result as ArrayList).ToArray().Select(x => new DynamicJsonObject(x as IDictionary<string, object>)));
}
else if (result is ArrayList)
{
result = new List<object>((result as ArrayList).ToArray());
}
return this.Dictionary.ContainsKey(binder.Name);
}
}
Converter
public class DynamicJsonConverter : JavaScriptConverter
{
public override object Deserialize(IDictionary<string, object> dictionary, Type type, JavaScriptSerializer serializer)
{
if (dictionary == null)
throw new ArgumentNullException("dictionary");
if (type == typeof(object))
{
return new DynamicJsonObject(dictionary);
}
return null;
}
public override IDictionary<string, object> Serialize(object obj, JavaScriptSerializer serializer)
{
throw new NotImplementedException();
}
public override IEnumerable<Type> SupportedTypes
{
get { return new ReadOnlyCollection<Type>(new List<Type>(new Type[] { typeof(object) })); }
}
}
Usage (sample json):
JavaScriptSerializer jss = new JavaScriptSerializer();
jss.RegisterConverters(new JavaScriptConverter[] { new DynamicJsonConverter() });
dynamic glossaryEntry = jss.Deserialize(json, typeof(object)) as dynamic;
Console.WriteLine("glossaryEntry.glossary.title: " + glossaryEntry.glossary.title);
Console.WriteLine("glossaryEntry.glossary.GlossDiv.title: " + glossaryEntry.glossary.GlossDiv.title);
Console.WriteLine("glossaryEntry.glossary.GlossDiv.GlossList.GlossEntry.ID: " + glossaryEntry.glossary.GlossDiv.GlossList.GlossEntry.ID);
Console.WriteLine("glossaryEntry.glossary.GlossDiv.GlossList.GlossEntry.GlossDef.para: " + glossaryEntry.glossary.GlossDiv.GlossList.GlossEntry.GlossDef.para);
foreach (var also in glossaryEntry.glossary.GlossDiv.GlossList.GlossEntry.GlossDef.GlossSeeAlso)
{
Console.WriteLine("glossaryEntry.glossary.GlossDiv.GlossList.GlossEntry.GlossDef.GlossSeeAlso: " + also);
}
This method has to return true, otherwise it will throw an error. E.g. you can throw an error if a key does not exist.
Returning true and emptying result will return an empty value rather than throwing an error.
public override bool TryGetMember(GetMemberBinder binder, out object result)
{
if (!this.Dictionary.ContainsKey(binder.Name))
{
result = "";
}
else
{
result = this.Dictionary[binder.Name];
}
if (result is IDictionary<string, object>)
{
result = new DynamicJsonObject(result as IDictionary<string, object>);
}
else if (result is ArrayList && (result as ArrayList) is IDictionary<string, object>)
{
result = new List<DynamicJsonObject>((result as ArrayList).ToArray().Select(x => new DynamicJsonObject(x as IDictionary<string, object>)));
}
else if (result is ArrayList)
{
result = new List<object>((result as ArrayList).ToArray());
}
return true; // this.Dictionary.ContainsKey(binder.Name);
}

Your data class doesn't match the JSON object. Use this instead:
[DataContract]
public class GoogleSearchResults
{
[DataMember]
public ResponseData responseData { get; set; }
}
[DataContract]
public class ResponseData
{
[DataMember]
public IEnumerable<Results> results { get; set; }
}
[DataContract]
public class Results
{
[DataMember]
public string unescapedUrl { get; set; }
[DataMember]
public string url { get; set; }
[DataMember]
public string visibleUrl { get; set; }
[DataMember]
public string cacheUrl { get; set; }
[DataMember]
public string title { get; set; }
[DataMember]
public string titleNoFormatting { get; set; }
[DataMember]
public string content { get; set; }
}
Also, you don't have to instantiate the class to get its type for deserialization:
public static T Deserialise<T>(string json)
{
using (var ms = new MemoryStream(Encoding.Unicode.GetBytes(json)))
{
var serialiser = new DataContractJsonSerializer(typeof(T));
return (T)serialiser.ReadObject(ms);
}
}

I just think the whole example would be useful. This is the example for this problem.
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.ServiceModel.Web;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.IO;
using System.Text;
using System.Collections.Generic;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
GoogleSearchResults g1 = new GoogleSearchResults();
const string json = #"{""responseData"": {""results"":[{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.cheese.com/"",""url"":""http://www.cheese.com/"",""visibleUrl"":""www.cheese.com"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:bkg1gwNt8u4J:www.cheese.com"",""title"":""\u003cb\u003eCHEESE\u003c/b\u003e.COM - All about \u003cb\u003echeese\u003c/b\u003e!."",""titleNoFormatting"":""CHEESE.COM - All about cheese!."",""content"":""\u003cb\u003eCheese\u003c/b\u003e - everything you want to know about it. Search \u003cb\u003echeese\u003c/b\u003e by name, by types of milk, by textures and by countries.""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://en.wikipedia.org/wiki/Cheese"",""url"":""http://en.wikipedia.org/wiki/Cheese"",""visibleUrl"":""en.wikipedia.org"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:n9icdgMlCXIJ:en.wikipedia.org"",""title"":""\u003cb\u003eCheese\u003c/b\u003e - Wikipedia, the free encyclopedia"",""titleNoFormatting"":""Cheese - Wikipedia, the free encyclopedia"",""content"":""\u003cb\u003eCheese\u003c/b\u003e is a food consisting of proteins and fat from milk, usually the milk of cows, buffalo, goats, or sheep. It is produced by coagulation of the milk \u003cb\u003e...\u003c/b\u003e""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.ilovecheese.com/"",""url"":""http://www.ilovecheese.com/"",""visibleUrl"":""www.ilovecheese.com"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:GBhRR8ytMhQJ:www.ilovecheese.com"",""title"":""I Love \u003cb\u003eCheese\u003c/b\u003e!, Homepage"",""titleNoFormatting"":""I Love Cheese!, Homepage"",""content"":""The American Dairy Association\u0026#39;s official site includes recipes and information on nutrition and storage of \u003cb\u003echeese\u003c/b\u003e.""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.gnome.org/projects/cheese/"",""url"":""http://www.gnome.org/projects/cheese/"",""visibleUrl"":""www.gnome.org"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:jvfWnVcSFeQJ:www.gnome.org"",""title"":""\u003cb\u003eCheese\u003c/b\u003e"",""titleNoFormatting"":""Cheese"",""content"":""\u003cb\u003eCheese\u003c/b\u003e uses your webcam to take photos and videos, applies fancy special effects and lets you share the fun with others. It was written as part of Google\u0026#39;s \u003cb\u003e...\u003c/b\u003e""}],""cursor"":{""pages"":[{""start"":""0"",""label"":1},{""start"":""4"",""label"":2},{""start"":""8"",""label"":3},{""start"":""12"",""label"":4},{""start"":""16"",""label"":5},{""start"":""20"",""label"":6},{""start"":""24"",""label"":7},{""start"":""28"",""label"":8}],""estimatedResultCount"":""14400000"",""currentPageIndex"":0,""moreResultsUrl"":""http://www.google.com/search?oe\u003dutf8\u0026ie\u003dutf8\u0026source\u003duds\u0026start\u003d0\u0026hl\u003den-GB\u0026q\u003dcheese""}}, ""responseDetails"": null, ""responseStatus"": 200}";
g1 = JSONHelper.Deserialise<GoogleSearchResults>(json);
foreach (Pages x in g1.responseData.cursor.pages)
{
// Anything you want to get
Response.Write(x.label);
}
}
}
public class JSONHelper
{
public static T Deserialise<T>(string json)
{
using (var ms = new MemoryStream(Encoding.Unicode.GetBytes(json)))
{
var serialiser = new DataContractJsonSerializer(typeof(T));
return (T)serialiser.ReadObject(ms);
}
}
public static string Serialize<T>(T obj)
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
using (MemoryStream ms = new MemoryStream())
{
serializer.WriteObject(ms, obj);
return Encoding.Default.GetString(ms.ToArray());
}
}
}
[DataContract]
public class GoogleSearchResults
{
[DataMember]
public ResponseData responseData { get; set; }
[DataMember]
public string responseStatus { get; set; }
}
public class ResponseData
{
[DataMember]
public Cursor cursor { get; set; }
[DataMember]
public IEnumerable<Results> results { get; set; }
}
[DataContract]
public class Cursor
{
[DataMember]
public IEnumerable<Pages> pages { get; set; }
}
[DataContract]
public class Pages
{
[DataMember]
public string start { get; set; }
[DataMember]
public string label { get; set; }
}
[DataContract]
public class Results
{
[DataMember]
public string unescapedUrl { get; set; }
[DataMember]
public string url { get; set; }
[DataMember]
public string visibleUrl { get; set; }
[DataMember]
public string cacheUrl { get; set; }
[DataMember]
public string title { get; set; }
[DataMember]
public string titleNoFormatting { get; set; }
[DataMember]
public string content { get; set; }
}

I tried to use the code above but didn't work. The JSON structure returned by Google is so different and there is a very important miss in the helper function: a call to DataContractJsonSerializer.ReadObject() that actually deserializes the JSON data into the object.
Here is the code that WORKS in 2011:
using System;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.IO;
using System.Text;
using System.Collections.Generic;
namespace <YOUR_NAMESPACE>
{
public class JSONHelper
{
public static T Deserialise<T>(string json)
{
T obj = Activator.CreateInstance<T>();
MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(json));
DataContractJsonSerializer serialiser = new DataContractJsonSerializer(obj.GetType());
obj = (T)serialiser.ReadObject(ms);
ms.Close();
return obj;
}
}
public class Result
{
public string GsearchResultClass { get; set; }
public string unescapedUrl { get; set; }
public string url { get; set; }
public string visibleUrl { get; set; }
public string cacheUrl { get; set; }
public string title { get; set; }
public string titleNoFormatting { get; set; }
public string content { get; set; }
}
public class Page
{
public string start { get; set; }
public int label { get; set; }
}
public class Cursor
{
public string resultCount { get; set; }
public Page[] pages { get; set; }
public string estimatedResultCount { get; set; }
public int currentPageIndex { get; set; }
public string moreResultsUrl { get; set; }
public string searchResultTime { get; set; }
}
public class ResponseData
{
public Result[] results { get; set; }
public Cursor cursor { get; set; }
}
public class GoogleSearchResults
{
public ResponseData responseData { get; set; }
public object responseDetails { get; set; }
public int responseStatus { get; set; }
}
}
To get the content of the first result, do:
GoogleSearchResults googleResults = new GoogleSearchResults();
googleResults = JSONHelper.Deserialise<GoogleSearchResults>(jsonData);
string contentOfFirstResult = googleResults.responseData.results[0].content;

Thank you all for your help.
This is my final version, and it works thanks to your combined help !
I am only showing the changes i made, all the rest is taken from Joe Chung's work
public class GoogleSearchResults
{
[DataMember]
public ResponseData responseData { get; set; }
[DataMember]
public string responseDetails { get; set; }
[DataMember]
public int responseStatus { get; set; }
}
and
[DataContract]
public class ResponseData
{
[DataMember]
public List<Results> results { get; set; }
}

Google Map API request and parse DirectionsResponse with C#, change the json in your url to xml
and use the following code to turn the result into a usable C# Generic List Object.
Took me a while to make. But here it is
var url = String.Format("http://maps.googleapis.com/maps/api/directions/xml?...");
var result = new System.Net.WebClient().DownloadString(url);
var doc = XDocument.Load(new StringReader(result));
var DirectionsResponse = doc.Elements("DirectionsResponse").Select(l => new
{
Status = l.Elements("status").Select(q => q.Value).FirstOrDefault(),
Route = l.Descendants("route").Select(n => new
{
Summary = n.Elements("summary").Select(q => q.Value).FirstOrDefault(),
Leg = n.Elements("leg").ToList().Select(o => new
{
Step = o.Elements("step").Select(p => new
{
Travel_Mode = p.Elements("travel_mode").Select(q => q.Value).FirstOrDefault(),
Start_Location = p.Elements("start_location").Select(q => new
{
Lat = q.Elements("lat").Select(r => r.Value).FirstOrDefault(),
Lng = q.Elements("lng").Select(r => r.Value).FirstOrDefault()
}).FirstOrDefault(),
End_Location = p.Elements("end_location").Select(q => new
{
Lat = q.Elements("lat").Select(r => r.Value).FirstOrDefault(),
Lng = q.Elements("lng").Select(r => r.Value).FirstOrDefault()
}).FirstOrDefault(),
Polyline = p.Elements("polyline").Select(q => new
{
Points = q.Elements("points").Select(r => r.Value).FirstOrDefault()
}).FirstOrDefault(),
Duration = p.Elements("duration").Select(q => new
{
Value = q.Elements("value").Select(r => r.Value).FirstOrDefault(),
Text = q.Elements("text").Select(r => r.Value).FirstOrDefault(),
}).FirstOrDefault(),
Html_Instructions = p.Elements("html_instructions").Select(q => q.Value).FirstOrDefault(),
Distance = p.Elements("distance").Select(q => new
{
Value = q.Elements("value").Select(r => r.Value).FirstOrDefault(),
Text = q.Elements("text").Select(r => r.Value).FirstOrDefault(),
}).FirstOrDefault()
}).ToList(),
Duration = o.Elements("duration").Select(p => new
{
Value = p.Elements("value").Select(q => q.Value).FirstOrDefault(),
Text = p.Elements("text").Select(q => q.Value).FirstOrDefault()
}).FirstOrDefault(),
Distance = o.Elements("distance").Select(p => new
{
Value = p.Elements("value").Select(q => q.Value).FirstOrDefault(),
Text = p.Elements("text").Select(q => q.Value).FirstOrDefault()
}).FirstOrDefault(),
Start_Location = o.Elements("start_location").Select(p => new
{
Lat = p.Elements("lat").Select(q => q.Value).FirstOrDefault(),
Lng = p.Elements("lng").Select(q => q.Value).FirstOrDefault()
}).FirstOrDefault(),
End_Location = o.Elements("end_location").Select(p => new
{
Lat = p.Elements("lat").Select(q => q.Value).FirstOrDefault(),
Lng = p.Elements("lng").Select(q => q.Value).FirstOrDefault()
}).FirstOrDefault(),
Start_Address = o.Elements("start_address").Select(q => q.Value).FirstOrDefault(),
End_Address = o.Elements("end_address").Select(q => q.Value).FirstOrDefault()
}).ToList(),
Copyrights = n.Elements("copyrights").Select(q => q.Value).FirstOrDefault(),
Overview_polyline = n.Elements("overview_polyline").Select(q => new
{
Points = q.Elements("points").Select(r => r.Value).FirstOrDefault()
}).FirstOrDefault(),
Waypoint_Index = n.Elements("waypoint_index").Select(o => o.Value).ToList(),
Bounds = n.Elements("bounds").Select(q => new
{
SouthWest = q.Elements("southwest").Select(r => new
{
Lat = r.Elements("lat").Select(s => s.Value).FirstOrDefault(),
Lng = r.Elements("lng").Select(s => s.Value).FirstOrDefault()
}).FirstOrDefault(),
NorthEast = q.Elements("northeast").Select(r => new
{
Lat = r.Elements("lat").Select(s => s.Value).FirstOrDefault(),
Lng = r.Elements("lng").Select(s => s.Value).FirstOrDefault()
}).FirstOrDefault(),
}).FirstOrDefault()
}).FirstOrDefault()
}).FirstOrDefault();
I hope this will help someone.

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