private void WriteLoginJsonData(object jsonData)

        {

            using (FileStream writerFileStream = new FileStream(JsonDataFile, FileMode.OpenOrCreate))

            {

                using (StreamWriter writerStream = new StreamWriter(writerFileStream, Encoding.UTF8))

                {

                    writerFileStream.SetLength();

                    string loginDataJson = JsonConvert.SerializeObject(jsonData, Formatting.Indented);

                    writerStream.WriteLine(loginDataJson);

                    writerStream.Close();

                }

                writerFileStream.Close();

            }

        }

private void ReadLoginJsonData()

        {

            if (File.Exists(JsonDataFile))

            {

                using (FileStream readerFileStream = new FileStream(JsonDataFile, FileMode.Open, FileAccess.Read))

                {

                    using (StreamReader readerStream = new StreamReader(readerFileStream, Encoding.UTF8))

                    {

                        string jsonContent= readerStream.ReadToEnd();

                        if (!string.IsNullOrWhiteSpace(jsonContent))

                        {

                             Console.WriteLine(jsonContent);

                        }

                        readerStream.Close();

                    }

                    readerFileStream.Close();

                }

            }

        }