AutoMapper - object to object different namespaces - c#

I have a scenario where we have two services that reference an object definition dll which is called SLInterface.dll. This is just a compilation of our object model. This object is huge so I'll tone it down and give a snippet of the code:
using System;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.ComponentModel;
namespace SLInterface
{
[DataContract(Namespace = Utilities.strNamespace)]
public class EntityShipment
{
public EntityShipment()
{
lstEntityResponseStatus = new List<EntityResponseStatus>();
}
[DataMember]
public EntityAddress objShipTo
{
get;
set;
}
[DataMember]
public EntityToolKit ToolKit { get; set; }
[DataMember]
public List<EntityResponseStatus> lstEntityResponseStatus
{
get;
set;
}
}
}
namespace SLInterface
{
public class EntityAddress
{
[DataMember]
public String strCustomerID
{
get;
set;
}
[DataMember]
public String strCompanyName
{
get;
set;
}
[DataMember]
public String strContactName
{
get;
set;
}
[DataMember]
public String strAddressLine1
{
get;
set;
}
[DataMember]
public String strAddressLine2
{
get;
set;
}
[DataMember]
public String strAddressLine3
{
get;
set;
}
[DataMember]
public String strCity
{
get;
set;
}
[DataMember]
public String strState
{
get;
set;
}
[DataMember]
public String strPostalCode
{
get;
set;
}
[DataMember]
public String strCountryCode
{
get;
set;
}
[DataMember]
public String strCountryName
{
get;
set;
}
[DataMember]
public String strPhoneNumber
{
get;
set;
}
[DataMember]
public String strFaxNumber
{
get;
set;
}
[DataMember]
public Boolean blnRBDICheck
{
get;
set;
}
[DataMember]
public Boolean blnIsRBDI
{
get;
set;
}
[DataMember]
public String strPlantID
{
get;
set;
}
[DataMember]
public String strAccountNumber
{
get;
set;
}
[DataMember]
public String strEmailAddress
{
get;
set;
}
[DataMember]
public Boolean blnBlindShip
{
get;
set;
}
}
}
And Then there is another definition for toolkit and for EntityResponseStatus which I can post if it is needed.
We have a scenario where from ServiceA, we need to pass this object to ServiceB. We can't just pass this object that is filled during ServiceA as it is a different namespace. So we're trying to use AutoMapper so we don't have to map each property and it values individually.
Here is our AutoMapperCode:
public class ES
{
public ServiceA.SLInterface.EntityResponseStatus CallES(string strPrinterPath, string strShipmentNumber, string strCompanyCode)
{
Mapper.CreateMap<ServiceA.SLInterface.EntityShipment, ServiceB.SLInterface.EntityShipment>();
ServiceA.SLInterface.EntityResponseStatus objERS = new ServiceA.SLInterface.EntityResponseStatus();
objERS.StatusType = ServiceA.SLInterface.ResponseStatusType.SUCCESS;
ServiceA.SLInterface.EntityShipment objES = new ServiceA.SLInterface.EntityShipment();
objES = FillES(objES, strShipmentNumber, strCompanyCode);
Sage300 obj300 = new Sage300();
objES = obj300.Pull(objES);
ServiceB.SLInterface.EntityShipment objESES = new ServiceB.SLInterface.EntityShipment();
try
{
objESES = Mapper.Map<ServiceB.SLInterface.EntityShipment>(objES); //This is the line that we blow up on. The error message is "Missing type map configuration or unsupported mapping."
}
catch(AutoMapperConfigurationException amce)
{
ServiceA.SLInterface.EntityResponseStatus objERS1 = new ServiceA.SLInterface.EntityResponseStatus();
objERS1.Message = amce.Message;
}
catch (AutoMapperMappingException amme)
{
ServiceA.SLInterface.EntityResponseStatus objERS1 = new ServiceA.SLInterface.EntityResponseStatus();
objERS1.Message = amme.Message;
}
objESES = ServiceB.CallESShip(objESES,strPrinterPath);
return objERS;
}
In the try catch is where we get the error message
objESES = Mapper.Map<ServiceB.SLInterface.EntityShipment>(objES); //This is the line that we blow up on. The error message is "Missing type map configuration or unsupported mapping."
Both object models are exactly the same. Do we have to do a mapping for each object in the main object. Right now, we are thinking with the code that we have that it would be mapping everything from the root down exactly the same and then transferring over the data. Any help would be appreciated.
Thanks!

Related

How are string collections serialized in a custom C# class for Contacts with the Outlook REST API?

I've generated a C# class from sample JSON output using the Graph Explorer with Contacts (as per below). However, when I pass the serialized object (using JsonConvert.SerializeObject(myclass)) with null values for string array properties to a POST operation to create the Contact I get the following error in the response:
A null value was found for the property named 'BusinessPhones', which
has the expected type 'Collection(Edm.String)[Nullable=False]'. The
expected type 'Collection(Edm.String)[Nullable=False]' does not allow
null values.
(for reference, these are the supported Contact properties: https://msdn.microsoft.com/en-us/office/office365/api/complex-types-for-mail-contacts-calendar#contact)
Here's an example of the raw JSON:
{"AssistantName":null,"Birthday":null,"BusinessAddress":null,"BusinessPhones":null,"Categories":null,"Children":null,"CompanyName":"Fun Toys and Bikes","Department":null,"DisplayName":"Mr. Robert E. Ahlering","EmailAddresses":[{"Address":"robert#funtoys.com","Name":"Robert E. Ahlering (robert#funtoys.com)"}],"FileAs":null,"Generation":null,"GivenName":"Robert","HomeAddress":null,"Initials":null,"JobTitle":"Owner","Manager":null,"MiddleName":null,"MobilePhone1":null,"NickName":null,"OfficeLocation":null,"OtherAddress":null,"PersonalNotes":null,"Profession":null,"SpouseName":null,"Surname":"Ahlering","Title":null,"YomiCompanyName":null,"YomiGivenName":null,"YomiSurname":null}
I believe the correct formatting for a null BusinessPhones value (to pick one of the string arrays) should be "BusinessPhones":[], and not "BusinessPhones:null".
So how do I implement string array/collection properties in the class to accommodate this?
public partial class OutlookContact
{
public partial class Businessaddress
{
public object City { get; set; }
public object CountryOrRegion { get; set; }
public object PostalCode { get; set; }
public object State { get; set; }
public object Street { get; set; }
}
public partial class Emailaddress
{
public string Address { get; set; }
public string Name { get; set; }
}
public partial class Homeaddress
{
public string City { get; set; }
public object CountryOrRegion { get; set; }
public string PostalCode { get; set; }
public string State { get; set; }
public string Street { get; set; }
}
public partial class Otheraddress
{
public object City { get; set; }
public object CountryOrRegion { get; set; }
public object PostalCode { get; set; }
public object State { get; set; }
public object Street { get; set; }
}
public partial class Rootobject
{
public object AssistantName { get; set; }
public DateTime? Birthday { get; set; }
public Businessaddress BusinessAddress { get; set; }
public string[] BusinessPhones { get; set; }
public object[] Categories { get; set; }
public object[] Children { get; set; }
public object CompanyName { get; set; }
public string Department { get; set; }
public string DisplayName { get; set; }
public Emailaddress[] EmailAddresses { get; set; }
public string FileAs { get; set; }
public object Generation { get; set; }
public string GivenName { get; set; }
public Homeaddress HomeAddress { get; set; }
public object Initials { get; set; }
public string JobTitle { get; set; }
public object Manager { get; set; }
public object MiddleName { get; set; }
public object MobilePhone1 { get; set; }
public object NickName { get; set; }
public string OfficeLocation { get; set; }
public Otheraddress OtherAddress { get; set; }
public object PersonalNotes { get; set; }
public object Profession { get; set; }
public object SpouseName { get; set; }
public string Surname { get; set; }
public object Title { get; set; }
public object YomiCompanyName { get; set; }
public object YomiGivenName { get; set; }
public object YomiSurname { get; set; }
}
}

You need to initialize BusinessPhones property to an empty array in the constructor of RootObject class as following.
public partial class RootObject
{
public RootObject()
{
this.BusinessPhones = new string[0];
}
// rest of the class...
}
And if that's not possible, you need to make sure that the BusinessPgones is initialized to empty array before you serialize it to JSON string.
var rootObject = new RootObject();
rootObject.BusinessPhones = new string[];
// set other properties of rootObject
//Serialize rootObject to JSON
// Call rest API.
This should resolve your issue.

From the error null collection is not allowed. You should be able to use any empty collection instead:
"BusinessPhones": []

deserializing json object in c # with json.net , error reading/cast

I'm deserializing from a json file , which has the following fields :
{ 'IdTechnician': '4', 'DescTechnician': 'Surname Name', 'LoginTechnician': 'username', 'TypeTechnician': '1', 'TelephoneTechnician': '+123456789', 'SignatureTechnician': '????\\u0000\\u0010JFIF\\u0000\\u0001\\u0002\\u0001\\u0001,\\u0001,\\u0000\\u0000??\\u0000\\u000eAdobe\\u0000d\\u0000\\u0000\\u0000\\u0000\\u0001??\\t?Exif\\u0000\\u0000MM\\u0000*\\u0000\\u0000\\u0000\\b\\u0000\\u0007\\u0001\\u0012\\u0000\\u0003\\u0000\\u0000\\u0000\\u0001\\u0000\\u0001\\u0000\\u0000\\u0001\\u001a\\u0000\\u0005\\u0000\\u0000\\u0000\\u0001\\u0000\\u0000\\u0000b\\u0001\\u001b\\u0000\\u0005\\u0000\\u0000\\u0000\\u0001\\u0000\\u0000\\u0000j\\u0001(\\u0000\\u0003\\u0000\\u0000\\u0000\\u0001\\u0000\\u0002\\u0000\\u0000\\u00011\\u0000\\u0002\\u0000\\u0000\\u0000\\u001c\\u0000\\u0000\\u0000r\\u00012\\u0000\\u0002\\u0000\\u0000\\u0000\\u0014\\u0000\\u0000\\u0000??i\\u0000\\u0004\\u0000\\u0000\\u0000\\u0001\\u0000\\u0000\\u0000?\\u0000\\u0000\\u0000?\\u0001,\\u0000\\u0000\\u0000\\u0001\\u0000\\u0000\\u0001,\\u0000\\u0000\\u0000\\u0001\\u0000\\u0000Adobe Photoshop CS4 Windows\\u00002011:03:09 17:10:23\\u0000\\u0000\\u0003?\\u0001\\u0000\\u0003\\u0000\\u0000\\u0000\\u0001??\\u0000\\u0000?\\u0002\\u0000\\u0004\\u0000\\u0000\\u0000\\u0001\\u0000\\u0000\\u0000??\\u0003\\u0000\\u0004\\u0000\\u0000\\u0000\\u0001\\u0000\\u0000\\u0000-\\u0000\\u0000\\u0000\\u0000\\u0000\\u0000\\u0000\\u0006\\u0001\\u0003\\u0000\\u0003\\u0000\\u0000\\u0000\\u0001\\u0000\\u0006\\u0000\\u0000\\u0001\\u001a\\u0000\\u0005\\u0000\\u0000\\u0000\\u0001\\u0000\\u0000\\u0001\\u001c\\u0001\\u001b\\u0000\\u0005\\u0000\\u0000\\u0000\\u0001\\u0000\\u0000\\u0001$\\u0001(\\u0000\\u0003\\u0000\\u0000\\u0000\\u0001\\u0000\\u0002\\u0000\\u0000\\u0002\\u0001\\u0000\\u0004\\u0000\\u0000\\u0000\\u0001\\u0000\\u0000\\u0001,\\u0002\\u0002\\u0000\\u0004\\u0000\\u0000\\u0000\\u0001\\u0000\\u0000\\b^\\u0000\\u0000\\u0000\\u0000\\u0000\\u0000\\u0000H\\u0000\\u0000\\u0000\\u0001\\u0000\\u0000\\u0000H\\u0000\\u0000\\u0000\\u0001????\\u0000\\u0010JFIF\\u0000\\u0001\\u0002\\u0000\\u0000H\\u0000H\\u0000\\u0000??\\u0000\\fAdobe_CM\\u0000\\u0002??\\u0000\\u000eAdobe\\u0000d?\\u0000\\u0000\\u0000\\u0001??\\u0000?\\u0000\\f\\b\\b\\b\\t\\b\\f\\t\\t\\f\\u0011\\u000b\\n\\u000b\\u0011\\u0015\\u000f\\f\\f\\u000f\\u0015\\u0018\\u0013\\u0013\\u0015\\u0013\\u0013\\u0018\\u0011\\f\\f\\f\\f\\f\\f\\u0011\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\u0001\\r\\u000b\\u000b\\r\\u000e\\r\\u0010\\u000e\\u000e\\u0010\\u0014\\u000e\\u000e\\u000e\\u0014\\u0014\\u000e\\u000e\\u000e\\u000e\\u0014\\u0011\\f\\f\\f\\f\\f\\u0011\\u0011\\f\\f\\f\\f\\f\\f\\u0011\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f\\f??\\u0000\\u0011\\b\\u0000$\\u0000?\\u0003\\u0001\\\\u0000\\u0002\\u0011\\u0001\\u0003\\u0011\\u0001??\\u0000\\u0004\\u0000\\n??\\u0001?\\u0000\\u0000\\u0001\\u0005\\u0001\\u0001\\u0001\\u0001\\u0001\\u0001\\u0000\\u0000\\u0000\\u0000\\u0000\\u0000\\u0000\\u0003\\u0000\\u0001\\u0002\\u0004\\u0005\\u0006\\u0007\\b\\t\\n\\u000b\\u0001\\u0000\\u0001\\u0005\\u0001\\u0001\\u0001\\u0001\\u0001\\u0001\\u0000\\u0000\\u0000\\u0000\\u0000\\u0000\\u0000\\u0001\\u0000\\u0002\\u0003\\u0004\\u0005\\u0006\\u0007\\b\\t\\n\\u000b\\u0010\\u0000\\u0001\\u0004\\u0001\\u0003\\u0002\\u0004\\u0002\\u0005\\u0007\\u0006\\b\\u0005\\u0003\\f3\\u0001\\u0000\\u0002\\u0011\\u0003\\u0004!\\u00121\\u0005AQa\\u0013\\q?2\\u0006\\u0014???B#$\\u0015R?b34r??C\\u0007%?S???cs5\\u0016???&D?TdE??t6\\u0017?U?e?????u??F'???????????????Vfv????????7GWgw????????\\u0011\\u0000\\u0002\\u0002\\u0001\\u0002\\u0004\\u0004\\u0003\\u0004\\u0005\\u0006\\u0007\\u0007\\u0006\\u00055\\u0001\\u0000\\u0002\\u0011\\u0003!1\\u0012\\u0004AQaq\\\\u0013\\u00052??\\u0014??B#?R??3$b?r??CS\\u0015cs4?%\\u0006\\u0016???\\u0007&5??D?T?\\u0017dEU6te??????u??F???????????????Vfv????????'7GWgw???????\\u0000\\f\\u0003\\u0001\\u0000\\u0002\\u0011\\u0003\\u0011\\u0000?\\u0000?E[??;\\u0013\\u0006??????Z?0]?????????3?m?t?f}??/????????????:?????\\u0000K?\\u0000\\u0017_?\\u0011\\u0002?????F5.??\\u001b]L??05???<l??qq?}4???C^??\\u0000\\u0011???\\u0000?{?\\u0000??oC?e?2???+7\\r??&??[?>??z~?^?[-?}??V:??44PQ 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xmp:ModifyDate=\\'2011-03-09T17:10:23+01:00\\' xmp:MetadataDate=\\'2011-03-09T17:10:23+01:00\\' dc:format=\\'image/jpeg\\' photoshop:ColorMode=\\'3\\' xmpMM:InstanceID=\\'xmp.iid:C525B6FA3E4AE01195AFE2861A054AE9\\' xmpMM:DocumentID=\\'xmp.did:C525B6FA3E4AE01195AFE2861A054AE9\\' xmpMM:OriginalDocumentID=\\'xmp.did:C525B6FA3E4AE01195AFE2861A054AE9\\' tiff:Orientation=\\'1\\' tiff:XResolution=\\'3000000/10000\\' tiff:YResolution=\\'3000000/10000\\' tiff:ResolutionUnit=\\'2\\' tiff:NativeDigest=\\'256,257,258,259,262,274,277,284,530,531,282,283,296,301,318,319,529,532,306,270,271,272,305,315,33432;DE7B977DF6EFF346F11FF6BE697281C5\\' exif:PixelXDimension=\\'200\\' exif:PixelYDimension=\\'45\\' exif:ColorSpace=\\'65535\\' exif:NativeDigest=\\'36864,40960,40961,37121,37122,40962,40963,37510,40964,36867,36868,33434,33437,34850,34852,34855,34856,37377,37378,37379,37380,37381,37382,37383,37384,37385,37386,37396,41483,41484,41486,41487,41488,41492,41493,41495,41728,41729,41730,41985,41986,41987,41988,41989,41990,41991,41992,41993,41994,41995,41996,42016,0,2,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,20,22,23,24,25,26,27,28,30;0E127CF2EACEDA719CA574253BD56212\\'>\\r\\n\\t\\t\\t<xmpMM:History>\\r\\n\\t\\t\\t\\t<rdf:Seq>\\r\\n\\t\\t\\t\\t\\t<rdf:li stEvt:action=\\'created\\' stEvt:instanceID=\\'xmp.iid:C525B6FA3E4AE01195AFE2861A054AE9\\' stEvt:when=\\'2011-03-09T17:10:23+01:00\\' stEvt:softwareAgent=\\'Adobe Photoshop CS4 Windows\\'/>\\r\\n\\t\\t\\t\\t</rdf:Seq>\\r\\n\\t\\t\\t</xmpMM:History>\\r\\n\\t\\t</rdf:Description>\\r\\n\\t</rdf:RDF>\\r\\n</x:xmpmeta>\\r\\n \\n o\\u000bP????\\u0006??T??/w?\\u0000\\u0007[???????', 'MailTechnician': 'email#email.it', 'WbsTechnician': 'xyz', 'NumberPincerTechnician': '' }
with the following code
using (StreamReader file = File.OpenText(#"path\\file.json"))
{
JsonSerializer serializer = new JsonSerializer();
tbl_tech tech = (tbl_tech)serializer.Deserialize(file, typeof(tbl_tech));
}
this is the object that i use
public partial class tbl_tech
{
public tbl_tech()
{
this.tbl_odl = new HashSet<tbl_odl>();
this.tbl_pdr = new HashSet<tbl_pdr>();
}
public long IdTechnician { get; set; }
public string DescTechnician { get; set; }
public string LoginTechnician { get; set; }
public string TelephoneTechnician { get; set; }
public string SignatureTechnician { get; set; }
public string MailTechnician { get; set; }
public string WbsTechnician { get; set; }
public string NumberPincerTechnician { get; set; }
public Nullable<long> TypeTechnician { get; set; }
public virtual ICollection<tbl_odl> tbl_odl { get; set; }
public virtual ICollection<tbl_pdr> tbl_pdr { get; set; }
}
and this is the error generate from visual studio.
{"Could not cast or convert from System.String to eStartService.tbl_tech."}
I do not understand is that the fields of the object are perfectly identical to those of my object , so where wrong assignment given to json ? I am that something wrong ? thanks

That json is an array of objects, not an object. See the [ and ] at the beginning/end?
tbl_tech[] tech = (tbl_tech[])serializer.Deserialize(sr, typeof(tbl_tech[]));

If I modify the code like this:
public partial class tbl_tech
{
public tbl_tech()
{
//this.tbl_odl = new HashSet<tbl_odl>();
//this.tbl_pdr = new HashSet<tbl_pdr>();
}
public long IdTechnician { get; set; }
public string DescTechnician { get; set; }
public string LoginTechnician { get; set; }
public string TelephoneTechnician { get; set; }
public string SignatureTechnician { get; set; }
public string MailTechnician { get; set; }
public string WbsTechnician { get; set; }
public string NumberPincerTechnician { get; set; }
public Nullable<long> TypeTechnician { get; set; }
//public virtual ICollection<tbl_odl> tbl_odl { get; set; }
//public virtual ICollection<tbl_pdr> tbl_pdr { get; set; }
}
The deserialization works fine.Becase now your json and your Type are similar.

Try using JSon2csharp when creating your JSon representation.
I removed the "'" from the numbers too:
[{'IdTechnician': 4, 'DescTechnician': 'Surname Name', 'LoginTechnician': 'name', 'TypeTechnician': 1, 'TelephoneTechnician': '+123456789', 'SignatureTechnician': 'signaturepath', 'MailTechnician': 'email#email.com', 'WbsTechnician': 'XYZ', 'NumberPincerTechnician': 1}]
Which gives the following model:
public class RootObject
{
public int IdTechnician { get; set; }
public string DescTechnician { get; set; }
public string LoginTechnician { get; set; }
public int TypeTechnician { get; set; }
public string TelephoneTechnician { get; set; }
public string SignatureTechnician { get; set; }
public string MailTechnician { get; set; }
public string WbsTechnician { get; set; }
public int NumberPincerTechnician { get; set; }
}
You can deserialize it in the following way:
IList<RootObject> result = new List<RootObject>();
using (StreamReader file = File.OpenText(#"path\\file.json"))
{
result = JsonConvert.DeserializeObject<List<RootObject>>(file.ReadToEnd());
}

How do I deserialise this JSON?

I haven't done anything with JSON before... so I am probably just missing a step.
Here is an example of the JSON I want to deserialise:
{"item":{"icon":"http://services.runescape.com/m=itemdb_rs/4765_obj_sprite.gif?id=4798","icon_large":"http://services.runescape.com/m=itemdb_rs/4765_obj_big.gif?id=4798","id":4798,"type":"Ammo","typeIcon":"http://www.runescape.com/img/categories/Ammo","name":"Adamant brutal","description":"Blunt adamantite arrow...ouch","current":{"trend":"neutral","price":237},"today":{"trend":"neutral","price":0},"members":"true","day30":{"trend":"positive","change":"+1.0%"},"day90":{"trend":"negative","change":"-0.0%"},"day180":{"trend":"positive","change":"+0.0%"}}}
I put this into "Json 2 C#" and ended up creating this new .cs file:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace RSTool.Models
{
public class Current
{
public string trend { get; set; }
public int price { get; set; }
}
public class Today
{
public string trend { get; set; }
public int price { get; set; }
}
public class Day30
{
public string trend { get; set; }
public string change { get; set; }
}
public class Day90
{
public string trend { get; set; }
public string change { get; set; }
}
public class Day180
{
public string trend { get; set; }
public string change { get; set; }
}
public class Item
{
public string icon { get; set; }
public string icon_large { get; set; }
public int id { get; set; }
public string type { get; set; }
public string typeIcon { get; set; }
public string name { get; set; }
public string description { get; set; }
public Current current { get; set; }
public Today today { get; set; }
public string members { get; set; }
public Day30 day30 { get; set; }
public Day90 day90 { get; set; }
public Day180 day180 { get; set; }
}
public class RootObject
{
public Item item { get; set; }
}
}
So, I have the class. I can retrieve the JSON from its location as a string, but I really have no idea how to deserialise it... I have installed Newtonsoft.Json and have tried using PopulateObject and also Deserializer but not with any luck...
Assuming that my JSON is stored as a string called "json", how would I go about storing that query and then retrieving the item name, for example?

Use:
var deserialized = JsonConvert.DeserializeObject<RootObject>(json);
I just tested this successfully given the code you supplied.
You can then access properties of object as normal:
MessageBox.Show(deserialized.item.name);

C# JSON Object wont deserialize

So I have been able to get JSON objects for a few things, however this object is quite a bit more complex.
I'm trying to get comments from Reddit.
Here is the method I use:
public async Task<List<string>> GetComments(string currentSubreddit, string topicID)
{
string commentUrl = "http://www.reddit.com/r/" + currentSubreddit + "/comments/" + topicID + "/.json";
List<Comments> commentList = new List<Comments>();
string jsonText = await wc.GetJsonText(commentUrl);
Comments.RootObject deserializeObject = Newtonsoft.Json.JsonConvert.DeserializeObject<Comments.RootObject>(jsonText);
List<string> commentListTest = new List<string>();
//List<string> commentListTest = deserializeObject.data.children[0].data.children;
return commentListTest;
}
This is the GetJsonText method:
public async Task<string> GetJsonText(string url)
{
var request = WebRequest.Create(url);
string text;
request.ContentType = "application/json; charset=utf-8";
var response = (HttpWebResponse)await request.GetResponseAsync();
using (var sr = new StreamReader(response.GetResponseStream()))
{
text = sr.ReadToEnd();
}
return text;
}
And here is a link to the Object: http://pastebin.com/WQ8XXGNA
And a link to the jsonText: http://pastebin.com/7Kh6cA9a
The error returned says this:
An exception of type 'Newtonsoft.Json.JsonSerializationException' occurred in mscorlib.dll but was not handled in user code
Additional information: Cannot deserialize the current JSON array (e.g. [1,2,3]) into type 'JuicyReddit.Comments+RootObject' because the type requires a JSON object (e.g. {"name":"value"}) to deserialize correctly.
I'd appreciate if anybody could help me with figuring out whats wrong with this.
Thanks

There are a few problems with your code actually
public async Task<List<string>> GetComments(string currentSubreddit, string topicID)
You don't need to return a list of string here, u need to return a full object
First rename RootObject in the model to an appropriate name such as "CommentsObject"
So set up your class like so and name it CommentsObject.cs:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace YOURNAMESPACE.Comments
{
public class MediaEmbed
{
}
public class SecureMediaEmbed
{
}
public class Data4
{
public int count { get; set; }
public string parent_id { get; set; }
public List<string> children { get; set; }
public string name { get; set; }
public string id { get; set; }
public string subreddit_id { get; set; }
public object banned_by { get; set; }
public string subreddit { get; set; }
public object likes { get; set; }
public object replies { get; set; }
public bool? saved { get; set; }
public int? gilded { get; set; }
public string author { get; set; }
public object approved_by { get; set; }
public string body { get; set; }
public object edited { get; set; }
public object author_flair_css_class { get; set; }
public int? downs { get; set; }
public string body_html { get; set; }
public string link_id { get; set; }
public bool? score_hidden { get; set; }
public double? created { get; set; }
public object author_flair_text { get; set; }
public double? created_utc { get; set; }
public object distinguished { get; set; }
public object num_reports { get; set; }
public int? ups { get; set; }
}
public class Child2
{
public string kind { get; set; }
public Data4 data { get; set; }
}
public class Data3
{
public string modhash { get; set; }
public List<Child2> children { get; set; }
public object after { get; set; }
public object before { get; set; }
}
public class Replies
{
public string kind { get; set; }
public Data3 data { get; set; }
}
public class Data2
{
public string domain { get; set; }
public object banned_by { get; set; }
public MediaEmbed media_embed { get; set; }
public string subreddit { get; set; }
public object selftext_html { get; set; }
public string selftext { get; set; }
public object likes { get; set; }
public object secure_media { get; set; }
public object link_flair_text { get; set; }
public string id { get; set; }
public SecureMediaEmbed secure_media_embed { get; set; }
public bool clicked { get; set; }
public bool stickied { get; set; }
public string author { get; set; }
public object media { get; set; }
public int score { get; set; }
public object approved_by { get; set; }
public bool over_18 { get; set; }
public bool hidden { get; set; }
public string thumbnail { get; set; }
public string subreddit_id { get; set; }
public object edited { get; set; }
public object link_flair_css_class { get; set; }
public object author_flair_css_class { get; set; }
public int downs { get; set; }
public bool saved { get; set; }
public bool is_self { get; set; }
public string permalink { get; set; }
public string name { get; set; }
public double created { get; set; }
public string url { get; set; }
public object author_flair_text { get; set; }
public string title { get; set; }
public double created_utc { get; set; }
public int ups { get; set; }
public int num_comments { get; set; }
public bool visited { get; set; }
public object num_reports { get; set; }
public object distinguished { get; set; }
public Replies replies { get; set; }
public int? gilded { get; set; }
public string parent_id { get; set; }
public string body { get; set; }
public string body_html { get; set; }
public string link_id { get; set; }
public bool? score_hidden { get; set; }
public int? count { get; set; }
public List<string> children { get; set; }
}
public class Child
{
public string kind { get; set; }
public Data2 data { get; set; }
}
public class Data
{
public string modhash { get; set; }
public List<Child> children { get; set; }
public object after { get; set; }
public object before { get; set; }
}
public class CommentsObject
{
public string kind { get; set; }
public Data data { get; set; }
}
}
Make your namespace correct!
Then handle the request and deserialise into a list of commentobjects: (u can use the webclient instead of httpclient if you want, this is just an example)
private HttpClient client;
public async Task<List<CommentsObject>> GetComments()
{
client = new HttpClient();
var response = await client.GetAsync("http://www.reddit.com/r/AskReddit/comments/1ut6xc.json");
if (response.IsSuccessStatusCode)
{
string json = await response.Content.ReadAsStringAsync();
List<CommentsObject> comments = await JsonConvert.DeserializeObjectAsync<List<CommentsObject>>(json);
return comments;
}
else
{
throw new Exception("Errorhandling message");
}
}

It's not ideal (and not completely an answer but more of a work around) but I created models that mock the reddit response json to make deserialization super easy. I use JsonProperty attributes on my model properties to pretty up the models a bit.
Here are the models
And since my models directly mock the json I can just use json.net's generic deserialize method.

JSONConvert.DeserializeObject not handling child array with unnamed array items

I have the following JSON object coming to me from a web service
{
"room":{
"name":"Thunderdome",
"created_at":"2012/04/15 00:36:27 +0000",
"id":xxxxxxx,
"users":[
{
"type":"Member",
"avatar_url":"url",
"created_at":"2012/02/27 14:11:57 +0000",
"id":1139474,
"email_address":"xxx#xxxxxxx.com",
"admin":false,
"name":"xxxx xxxxx"
},
{
"type":"Member",
etc
I'm using the following line to deserialize:
var room = JsonConvert.DeserializeObject<SingleRoom>(text);
And the following mapping classes
public class SingleRoom
{
public Room Room { get; set; }
}
[DataContract]
public class Room
{
[DataMember]
public int Id { get; set; }
[DataMember]
public string Name { get; set; }
public string Image {
get { return "Assets/campfire.png"; }
}
[DataMember]
public string Topic { get; set; }
[DataMember(Name ="membership_limit")]
public int MembershipLimit { get; set; }
[DataMember]
public bool Full { get; set; }
[DataMember]
public bool Locked { get; set; }
[DataMember(Name = "open_to_guests")]
public bool OpenToGuests { get; set; }
[DataMember(Name = "updated_at")]
public DateTime UpdatedAt { get; set; }
[DataMember(Name = "created_at")]
public DateTime CreatedAt { get; set; }
[DataMember(Name = "active_token_value")]
public string ActiveTokenValue { get; set; }
[DataMember(Name = "Users")]
public List<User> Users { get; set; }
}
[DataContract]
public class User
{
[DataMember]
public int Id { get; set; }
[DataMember]
public string Name { get; set; }
[DataMember(Name = "email_address")]
public string EmailAddress { get; set; }
[DataMember]
public bool Admin { get; set; }
[DataMember]
public DateTime CreatedAt { get; set; }
[DataMember]
public string Type { get; set; }
[DataMember(Name = "avatar_url")]
public string AvatarUrl { get; set; }
}
The 'Room' object deserializes correctly but the Users property on the Room is always null. I know that a null result is the result of a JSON.NET serialization that couldn't find the matching property. However, I think I have it right? List should match to user. I know the array object users in the JSON doesn't have named children, is that the issue? If so, how do I solve it?
Thanks!

This works.... You can rename them (or use JsonProperty attribute) to use c# style property names
(BTW: Json.Net doesn't require DataMember, DataContract attributes)
var obj = JsonConvert.DeserializeObject<SingleRoom>(json)
public class User
{
public string type { get; set; }
public string avatar_url { get; set; }
public string email_address { get; set; }
public bool admin { get; set; }
public string name { get; set; }
public string created_at { get; set; }
public int id { get; set; }
}
public class Room
{
public string topic { get; set; }
public int membership_limit { get; set; }
public bool locked { get; set; }
public string name { get; set; }
public List<User> users { get; set; }
public bool full { get; set; }
public bool open_to_guests { get; set; }
public string updated_at { get; set; }
public string created_at { get; set; }
public int id { get; set; }
}
public class SingleRoom
{
public Room room { get; set; }
}
PS: You may find that site useful http://json2csharp.com/ .

In my case, I had missing to add the "public" key for the child property.

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