/// <summary>
 /// this statement is used to Verify the username and password match with the database
 /// otherwise return the message of incorrect details.
 /// written by author : Abdelrahman Ahmed
 /// </summary>
 private void LoginInit()
 {
     if (LoginAuth.VerifyLogin(Username_txt.Text, Password_txt.Password))
     {
         MainEvent window = new MainEvent();
         window.Show();
         this.Close();
     }
     else
     {
         progbar.Opacity = 0;
         MessageBox.Show("Incorrect details. Please try again.");
     }
 }