protected void btnlogin_Click(object sender, EventArgs e) { string username = txtusername.Text; string password = txtpassword.Text; Nurse user = Nurse.Login_nurse(username, password); if (user != null) { Session["staff_name"] = user.name; Server.Transfer("msnurse.aspx"); ClientScript.RegisterStartupScript(GetType(), "hwa", "alert('เข้าสู่ระบบเรียบร้อย');", true); } else { ClientScript.RegisterStartupScript(GetType(), "hwa", "alert('เข้าสู่ระบบผิดพลาด');", true); } }