合併兩筆JObject

var j1 = (JObject)JsonConvert.DeserializeObject(json1);
var j2 = (JObject)JsonConvert.DeserializeObject(json2);

var jArray = new JArray(j1, j2);
var str = jArray.ToString();
EDIT

var final = JsonConvert.SerializeObject( 
                new {Title=j1["Title"], data=j1["data"].Union(j2["data"])},
                Newtonsoft.Json.Formatting.Indented);

OAuth instagram 連線方法 C#

 public ActionResult OAuth()
        {
            code = Request["code"].ToString();
            NameValueCollection parameters = new NameValueCollection();
            parameters.Add("client_id", ConfigurationManager.AppSettings["instagram.clientid"].ToString());
            parameters.Add("client_secret", ConfigurationManager.AppSettings["instagram.clientsecret"].ToString());
            parameters.Add("grant_type", "authorization_code");
            parameters.Add("redirect_uri", ConfigurationManager.AppSettings["instagram.redirecturi"].ToString());
            parameters.Add("code", code);

            WebClient client = new WebClient();
            var result = client.UploadValues("https://api.instagram.com/oauth/access_token",  parameters);

            //取得json後轉一下string 才不會都是/////////////////////////////////
            var response = System.Text.Encoding.Default.GetString(result);

            //model建立物件後
            // Json反序列化 building model
            var collection = JsonConvert.DeserializeObject(response);
           // 也可以轉JObject然後像下面轉為string取想要用的部分
            var jsResult = (JObject)JsonConvert.DeserializeObject(response);

  
            string accessToken = (string)jsResult["access_token"];
            int id = (int)jsResult["user"]["id"];
            string username = (string)jsResult["user"]["username"];

            Session.Add("name", username);
            Session.Add("InstaSharp.accessToken", collection);
            Session.Add("accessToken", accessToken);
            Session.Add("id", id);

            return RedirectToAction("MyFeed",new { username});
        }

string和byte[]的轉換 (C#)

string類型轉成byte[]：

byte[] byteArray = System.Text.Encoding.Default.GetBytes ( str );

反過來，byte[]轉成string：

string str = System.Text.Encoding.Default.GetString ( byteArray );

其它編碼方式的，如System.Text.UTF8Encoding，System.Text.UnicodeEncoding class等；例如：

string類型轉成ASCII byte[]：（"01" 轉成 byte[] = new byte[]{ 0x30, 0x31}）

byte[] byteArray = System.Text.Encoding.ASCII.GetBytes ( str );

ASCII byte[] 轉成string：（byte[] = new byte[]{ 0x30, 0x31} 轉成 "01"）

string str = System.Text.Encoding.ASCII.GetString ( byteArray );

有時候還有這樣一些需求：

byte[] 轉成原16進制格式的string，例如0xae00cf, 轉換成 "ae00cf"；new byte[]{ 0x30, 0x31}轉成"3031":

        public static string ToHexString ( byte[] bytes ) // 0xae00cf => "AE00CF "
        {
            string hexString = string.Empty;
            if ( bytes != null )
            {
                StringBuilder strB = new StringBuilder ();

                for ( int i = 0; i < bytes.Length; i++ )
                {
                    strB.Append ( bytes[i].ToString ( "X2" ) );
                }
                hexString = strB.ToString ();
            }
            return hexString;
        }

反過來，16進制格式的string 轉成byte[]，例如, "ae00cf"轉換成0xae00cf，長度縮減一半；"3031"轉成new byte[]{ 0x30, 0x31}:

        public static byte[] GetBytes(string hexString, out int discarded)
        {
            discarded = 0;
            string newString = "";
            char c;
            // remove all none A-F, 0-9, characters
            for (int i=0; i<hexString.Length; i++)
            {
                c = hexString[i];
                if (IsHexDigit(c))
                    newString += c;
                else
                    discarded++;
            }
            // if odd number of characters, discard last character
            if (newString.Length % 2 != 0)
            {
                discarded++;
                newString = newString.Substring(0, newString.Length-1);
            }

            int byteLength = newString.Length / 2;
            byte[] bytes = new byte[byteLength];
            string hex;
            int j = 0;
            for (int i=0; i<bytes.Length; i++)
            {
                hex = new String(new Char[] {newString[j], newString[j+1]});
                bytes[i] = HexToByte(hex);
                j = j+2;
            }
            return bytes;
        }

出處 :http://www.cnblogs.com/Mainz/archive/2008/04/09/1144242.html