C#

{
		"?xml" : {
			"@version" : "1.0",
			"@encoding" : "UTF-8"
		},
		"DataFeed" : {
			"@FeedName" : "AdminData",
			"People" : [{
					"id" : "63",
					"active" : "1",
					"firstName" : "Joe",
					"lastName" : "Schmoe",
					"roleIds" : {
						"int" : "4"
					}
				} , {
					"id" : "65",
					"active" : "1",
					"firstName" : "Steve",
					"lastName" : "Jobs",
					"roleIds" : {
						"int" : ["4", "16", "25", "20", "21", "22", "17", "23", "18"]
					}
				} , {
					"id" : "66",
					"active" : "1",
					"firstName" : "Bill",
					"lastName" : "Gates",
					"roleIds" : {
						"int" : ["3", "16", "25", "20"]
					}
				}
			]
		}
	}

JObject jsonFeed = JObject.Parse(jsonText);
	
	from people in jsonFeed.SelectTokens("DataFeed.People").SelectMany(i => i.ObjectsOrSelf())
	where (int)people["active"] == 1 && (int)people["roleIds.int"] == 4 // <-- this causes the error
	select new PeopleClass
	{
		Id = (int)people["id"],
		ResAnFName = (string)people["firstName"],
		ResAnLName = (string)people["lastName"]
	}

ArgumentNullException: Value cannot be null.<br />
	Parameter name: value

public class SFTP
{
    private string _address = "";
    private string _userName = "";
    private string _password = "";

    public SFTP(string address, string userName, string password)
    {
        _address = address;
        _userName = userName;
        _password = password;
    }

    public void DownloadFile(string localFile, string remoteFile)
    {
        var ftpConnection = GetConnection();
        ftpConnection.DownloadFile(localFile, remoteFile);
    }

    public FTPFile[] GetFileList()
    {
        var ftpConnection = GetConnection();
        FTPFile[] fileDetails = ftpConnection.GetFileInfos();

        return fileDetails;
    }

    public void UploadFile(string localFile, string remoteFile)
    {
        var ftpConnection = GetConnection();
        ftpConnection.UploadFile(localFile, remoteFile);
    }

    private FTPConnection GetConnection()
    {
        FTPConnection ftpConnection = new FTPConnection();
        ftpConnection.ServerAddress = _address;
        ftpConnection.UserName = _userName;
        ftpConnection.Password = _password;
        ftpConnection.ConnectMode = FTPConnectMode.ACTIVE;
        ftpConnection.BytesTransferred += FtpConnection_BytesTransferred;

        try
        {
            ftpConnection.Connect();
        }
        catch (Exception e)
        {
            Console.WriteLine(e.ToString());
            throw;
        }

        return ftpConnection;
    }

    private void FtpConnection_BytesTransferred(object sender, BytesTransferredEventArgs e)
    {
        Console.WriteLine("{0}: {1}", e.RemoteFile, e.ByteCount);
    }
}

{ID:AA, Make:ABC, Year:1995},{ID:BB, Make:BBC, Year:2000},{Name:XD, Make:DHS, Year:2006}

|ID:AA|Make:ABC, Year:1995|
|ID:BB|Make:BBC, Year:2000|
|ID:XD|Make:DHS, Year:2006|

string testString = "{ID:AA, Make:ABC, Year:1995},{ID:BB, Make:BBC, Year:2000},{Name:XD, Make:DHS, Year:2006}";
string[] outerArray = Regex.Split(testString, "},{");
string[,] innerArray = new string[2, outerArray.Length];
string idPattern = "^(ID)(.*?),";
string namePattern = "^(Class)(.*?),";

for (int i = 0; i < outerArray.Length; i++)
{
    outerArray[i] = outerArray[i].Replace("{", "").Replace("}", "");
    for (int y = 0; y < innerArray.Length; y++)
    {
        for (int x = 0; x < innerArray.Length; x++)
        {
            var matched_ID = Regex.Match(outerArray[i], idPattern);
            var matched_Name = Regex.Match(outerArray[i], namePattern);

            if (matched_ID.Success)
            {
                innerArray[x, y] = (matched_ID.Value).Replace(",", "");
            }
            else if (matched_Name.Success)
            {
                innerArray[x, y] = (matched_Name.Value).Replace(",", "");
            }

            if (outerArray[i].Length > 0 && !outerArray[i].Contains("ID:") && !outerArray[i].Contains("Name:"))
            {
                innerArray[x, y] = outerArray[i];
            }
            outerArray[i] = outerArray[i].Replace(matched_ID.Value, "");
            outerArray[i] = outerArray[i].Replace(matched_Name.Value, "");
        }
    }
}

wrGETURL.Headers.Add(HttpRequestHeader.Authorization, "Basic " + tokenid);