public void kiemTra(string tenDN, string MK) { SqlConnection dbConn = new SqlConnection(@"Data Source=HUUTHUAN\SQLEXPRESS;Initial Catalog=QLHSSV_TTLL;Integrated Security=True"); string cmd = "SELECT hoTen FROM DANGNHAP WHERE tenDangNhap = '" + tenDN + "' AND matKhau = '" + MK + "'"; SqlDataAdapter sql = new SqlDataAdapter(cmd, dbConn); DataTable ds = new DataTable(); sql.Fill(ds); if (ds.Rows.Count == 1) { /* I have made a new page called home page. If the user is successfully authenticated then the form will be moved to the next form */ this.Hide(); if (ds.Rows[0][0].ToString() != "admin") { TrangChu f = new TrangChu(ds.Rows[0][0].ToString()); f.Show(); } } else { MessageBox.Show("Sai tên đăng nhập hoặc mật khẩu.Xin vui lòng kiểm tra lại!"); } txtMK.Text = ""; txtTenDN.Text = ""; }
private void btnOK_Click(object sender, EventArgs e) { if (txtUser.Text != "" && txtPass.Text != "") { DTO_DangNhap tv = new DTO_DangNhap(txtUser.Text, txtPass.Text, ""); if (busTV.ktThanhVien(tv)) { this.Hide(); TrangChu fm = new TrangChu(); fm.Show(); } else { MessageBox.Show("Đăng nhập ko thành công"); } } }