Exemplos de userdal em C# (CSharp)

Exemplo n.º 1

        public DataTable loginuser(userdal da)
        {
            DataTable dt = new DataTable();

            con.Open();
            SqlCommand     com = new SqlCommand("select * from users where username='******' and password='******'", con);
            SqlDataAdapter sda = new SqlDataAdapter(com);

            sda.Fill(dt);
            return(dt);
        }