private void buttonDN_Click(object sender, EventArgs e) { try { if (String.IsNullOrEmpty(textBoxTK.Text)) { MessageBox.Show("Ban chua nhap ten tai khoan!!"); this.ActiveControl = textBoxTK; } else if (String.IsNullOrEmpty(textBoxMK.Text)) { MessageBox.Show("Ban chua nhap mat khau!!"); this.ActiveControl = textBoxMK; } else { NguoiDung ndCheck = db.NguoiDungs.SingleOrDefault(x => x.TenUser == textBoxTK.Text && x.MatKhau == textBoxMK.Text); if (ndCheck != null) { FormMainMenu formMain = new FormMainMenu(); formMain.ShowDialog(); } else { MessageBox.Show("Tai khoan hoac mat khau sai!!"); textBoxTK.Clear(); textBoxMK.Clear(); } } } catch (Exception ex) { MessageBox.Show(ex.Message); } }
private void buttonDangNhap_Click(object sender, EventArgs e) { FormMainMenu fm = new FormMainMenu(); try { if (String.IsNullOrEmpty(textBoxTK.Text)) { MessageBox.Show("Ban chua nhap ten tai khoan!!"); this.ActiveControl = textBoxTK; } else if (String.IsNullOrEmpty(textBoxMK.Text)) { MessageBox.Show("Ban chua nhap mat khau!!"); this.ActiveControl = textBoxMK; } else { UserTaiKhoan user = db.UserTaiKhoans.SingleOrDefault(x => x.TaiKhoan == textBoxTK.Text && x.MatKhau == textBoxTK.Text); if (user != null) { this.Hide(); fm.ShowDialog(); this.Close(); } else { MessageBox.Show("Tai khoan hoac mat khau khong dung!!!"); textBoxTK.Clear(); textBoxMK.Clear(); } } } catch (Exception ex) { MessageBox.Show(ex.Message); } }
private void btnLogin_Click(object sender, EventArgs e) { if (String.IsNullOrWhiteSpace(txtPassword.Text) || String.IsNullOrWhiteSpace(txtUsername.Text)) { MessageBox.Show("Please fill in required fields!", "Information", MessageBoxButtons.OK, MessageBoxIcon.Exclamation); return; } con.Open(); cmd.Connection = con; cmd.CommandText = "SELECT UserName, Position, isActive FROM tblUserAccounts WHERE UserName = '******' AND Password = '******'"; dr = cmd.ExecuteReader(); if (dr.Read()) { if (Convert.ToInt32(dr["Position"]) == 1 && Convert.ToInt32(dr["isActive"]) == 1) { this.Hide(); frmAdminMainMenu.ShowDialog(); this.Close(); } else if (Convert.ToInt32(dr["Position"]) == 2 && Convert.ToInt32(dr["isActive"]) == 1) { this.Hide(); frmStaffMainMenu.ShowDialog(); this.Close(); } else { MessageBox.Show("User Account is has been blocked!", "Information", MessageBoxButtons.OK, MessageBoxIcon.Warning); } } else { MessageBox.Show("User Account is not existing!", "Information", MessageBoxButtons.OK, MessageBoxIcon.Warning); } con.Close(); }