コード例 #1
0
        private void usrIssuedBooksBtnBack_Click(object sender, EventArgs e)
        {
            this.Hide();
            userBookSearch ubs = new userBookSearch();

            ubs.Show();
        }
コード例 #2
0
        private void LoginBtnSubmit_Click(object sender, EventArgs e)
        {
            if (con.State == ConnectionState.Closed)
            {
                con.Open();
            }

            cmd = new SqlCommand("select * from users where user_id = @user_id and password = @password", con);
            cmd.Parameters.AddWithValue("@user_id", loginTbxUserId.Text);
            cmd.Parameters.AddWithValue("@password", loginTbxPassword.Text);

            SqlDataAdapter sda = new SqlDataAdapter(cmd);
            DataTable      dt  = new DataTable();

            sda.Fill(dt);
            Session.userid = Int32.Parse(loginTbxUserId.Text.ToString());
            if (dt.Rows.Count > 0)
            {
                // successfully logged in pass userid and pwd
                userid   = Convert.ToInt32(loginTbxUserId.Text);
                password = loginTbxPassword.Text;

                if (Convert.ToString(dt.Rows[0][1]) == "False")
                {
                    this.Hide();
                    userBookSearch ubs = new userBookSearch();
                    ubs.Show();
                }
                else
                {
                    this.Hide();
                    admStartPage asp = new admStartPage();
                    asp.Show();
                }
            }
            else
            {
                MessageBox.Show("The entered USER ID or PASSWORD is WRONG.\nPlease check and try again.\nIf you have forgotten the password then go to the librarian to create a new one.");
                clear();
            }
        }