SqlConnection sql = new SqlConnection(sqlConString);
            using (SqlCommand loginCmd = new SqlCommand())
            {
                loginCmd.Connection = sql;
                sql.Open();
                loginCmd.CommandType = System.Data.CommandType.Text;
                loginCmd.CommandText = "SELECT UserName, UserPassword from OfficeEmployees where UserName = @UserName AND UserPassword = @UserPassword";
                loginCmd.Parameters.AddWithValue("@UserName", Login_Box.Text);
                loginCmd.Parameters.AddWithValue("@UserPassword", usrPassword.Text);
                loginCmd.ExecuteNonQuery();
                SqlDataReader dr = loginCmd.ExecuteReader();