protected void Button1_Click(object sender, EventArgs e) { admin admin1 = new admin(); admin1.name = txt_name.Text; admin1.pwd = txt_pwd.Text; admin1.role = Convert.ToInt32(DropDownList1.SelectedValue); BLLadmin blladmin = new BLLadmin(); SqlDataReader sdr = blladmin._login(admin1); if (sdr.Read()) { HttpCookie mycookie = new HttpCookie("login"); mycookie.Values.Add("_admin_name", txt_name.Text); mycookie.Values.Add("_type", DropDownList1.SelectedValue); TimeSpan ts = new TimeSpan(3, 0, 30, 0); DateTime dt = DateTime.Now; mycookie.Expires = dt.Add(ts); Response.AppendCookie(mycookie); sdr.Close(); Response.Redirect("Default.aspx"); } else { Common.MessageAlert.Alert(Page, "用户名或密码有误"); } }