private void ValidateLoginDetails()
 {
     byte[] key = keyClass.GetPrivateKey(_aesEncrypt);
     byte[] iv  = keyClass.GetIV(_aesEncrypt);
     using (FileStream fStream = new FileStream(tempDir + "LoginDetails.csv", FileMode.Open))
     {
         using (CryptoStream cStream = new CryptoStream(fStream, new AesManaged().CreateDecryptor(key, iv), CryptoStreamMode.Read))
         {
             using (StreamReader reader = new StreamReader(cStream))
             {
                 String line;
                 while ((line = reader.ReadLine()) != null)
                 {
                     if (line.Contains(","))
                     {
                         String[] split = line.Split(',');
                         if (split[0] == usernameTextBox.Text && split[1] == passwordTextBox.Text)
                         {
                             BookControl bookControl = new BookControl(_aesEncrypt);
                             bookControl.Show();
                             this.Hide();
                         }
                         else
                         {
                             MessageBox.Show("Invaild Please enter details again", "Error", MessageBoxButtons.OK);
                         }
                     }
                 }
             }
         }
     }
 }
 public UpdateBook(ListViewItem item, BookControl bookCtrl, AesCryptoServiceProvider aesEncrypt)
 {
     InitializeComponent();
     _bookControl = bookCtrl;
     _aesEncrypt  = aesEncrypt;
     _itemId      = item;
     PopulateFields();
 }
 public AddBook(BookControl bookCtrl, AesCryptoServiceProvider aesEncrypt)
 {
     InitializeComponent();
     _bookControl = bookCtrl;
     _aesEncrypt  = aesEncrypt;
     _key         = keyClass.GetPrivateKey(_aesEncrypt);
     _iv          = keyClass.GetIV(_aesEncrypt);
 }