protected void Page_Load(object sender, EventArgs e)
            {
                SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["FARMConnectionString"].ConnectionString);
                conn.Open();
                string checkuser = "select count(*) from colaboradores where nrColaborador='" + TextBox1.Text + "'";
                SqlCommand com = new SqlCommand(checkuser, conn);
                int temp = Convert.ToInt32(com.ExecuteScalar().ToString());
                conn.Close();
                if (temp == 1)
                {
                    conn.Open();
                    string checkPasswordQuery = "select psw from colaboradores where nrColaborador='" + TextBox1.Text + "'";
                    SqlCommand passCom = new SqlCommand(checkPasswordQuery, conn);
                    string password = passCom.ExecuteScalar().ToString().Replace(" ", " ");

                    if (password == TextBox2.Text)
                    {
                        Session["New"] = TextBox1.Text;

                        FormsAuthentication.RedirectFromLoginPage(temp.ToString(), true);
                        Response.Redirect("Menu.aspx");
                    }
                    else
                    {
                        Response.Write("Username ou Password errados");
                    }
                }
            }

<requestLimits maxUrl="10999" maxQueryString="2097151" />

<authentication mode="Forms">
      <forms loginUrl="Login.aspx" defaultUrl="Menu.aspx"/>
    </authentication>

      <authorization>
        <deny users="?"/>
      </authorization>