Пример #1
0
        private void buttonLogin_Click(object sender, EventArgs e)
        {
            MY_DB db = new MY_DB();

            SqlDataAdapter adapter = new SqlDataAdapter();

            DataTable table = new DataTable();

            SqlCommand command = new SqlCommand("SELECT * FROM login WHERE username = @User AND password = @Pass", db.getConnection);

            command.Parameters.Add("@User", SqlDbType.VarChar).Value = textBoxUsername.Text;
            command.Parameters.Add("@Pass", SqlDbType.VarChar).Value = textBoxPassword.Text;

            adapter.SelectCommand = command;
            adapter.Fill(table);

            if ((table.Rows.Count > 0))
            {
                this.DialogResult = DialogResult.OK;
                MessageBox.Show("Login Success");
                FormDashBoard dashBoard = new FormDashBoard();
                dashBoard.Show(this);
            }
            else
            {
                MessageBox.Show("Invalid Username or Password", "Login Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }