protected void Button2_Click(object sender, EventArgs e) { SqlConnection cn = new SqlConnection(ConfigurationManager.ConnectionStrings["data"].ConnectionString); DataTable dt = CPublic.getStudent(TextBox4.Text.Trim(), TextBox5.Text.Trim()); if (dt.Rows.Count == 1) { //记住Cookie //Ctrl+K+D格式化程序 Ctrl+X删除一行 // Response.Cookies["zhid"].Value = TextBox4.Text.Trim(); DataClassesDataContext dc = new DataClassesDataContext(); var a = from c in dc.guke where c.zhid.ToString() == TextBox4.Text.ToString() select c; foreach (var q in a) { Session["name"] = q.name; Session["zhid"] = q.zhid; } //密码验证成功,跳转到主页 Response.Redirect("shouye.aspx"); } else { //密码验证失败 Response.Write(" <script> window.alert('登录失败') </script> "); } }