问题描述
- 小白看一段ASP.NET源代码时碰到的问题 1C
图里面的 登录，注册，管理员登陆均点不了，其他功能正常。
相关源代码：web层
<%@ Page Language=""C#"" AutoEventWireup=""true"" CodeBehind=""Gbook.aspx.cs"" Inherits=""_28_1.Gbook"" %><%@ Register src=""control/GbookList.ascx"" tagname=""GbookList"" tagprefix=""uc1"" %><!DOCTYPE html PUBLIC ""-//W3C//DTD XHTML 1.0 Transitional//EN"" ""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd""><html xmlns=""http://www.w3.org/1999/xhtml"" ><head runat=""server""> <title>留言本</title> <link href=""css/css.css"" rel=""stylesheet"" type=""text/css"" /></head><body style=""background:white url(images/bg.png) repeat-x;""> <form id=""form1"" runat=""server""> <div class=""gbook_main_title""></div> <div class=""gbook_banner""> <img alt="""" src=""images/groups.png"" style=""width: 16px; height: 16px"" /> 登陆 <img alt="""" src=""images/gift.png"" style=""width: 16px; height: 16px"" /> 注册 <img alt="""" src=""images/list.png"" style=""width: 16px; height: 16px"" /> 管理员登陆</div> <div class=""gbook_main""> <div class=""left""> <asp:GridView ID=""GridView1"" runat=""server"" AutoGenerateColumns=""False"" BackColor=""White"" BorderColor=""#CCCCCC"" BorderStyle=""None"" BorderWidth=""1px"" CellPadding=""4"" DataKeyNames=""id"" DataSourceID=""SqlDataSource1"" ForeColor=""Black"" GridLines=""Horizontal"" ShowHeader=""False"" Width=""100%""> <FooterStyle BackColor=""#CCCC99"" ForeColor=""Black"" /> <Columns> <asp:HyperLinkField DataNavigateUrlFields=""id"" DataNavigateUrlFormatString=""Gbook.aspx?cid={0}"" DataTextField=""classname"" DataTextFormatString=""{0}"" /> </Columns> <PagerStyle BackColor=""White"" ForeColor=""Black"" HorizontalAlign=""Right"" /> <SelectedRowStyle BackColor=""#CC3333"" Font-Bold=""True"" ForeColor=""White"" /> <HeaderStyle BackColor=""#333333"" Font-Bold=""True"" ForeColor=""White"" /> </asp:GridView> <asp:SqlDataSource ID=""SqlDataSource1"" runat=""server"" ConnectionString=""<%$ ConnectionStrings:guestbookConnectionString %>"" SelectCommand=""SELECT top 10 * FROM [gbook_class] ORDER BY [id] DESC""> </asp:SqlDataSource> </div> <div class=""right""> <uc1:GbookList ID=""GbookList1"" runat=""server"" /> <br /> <asp:Panel ID=""Panel1"" runat=""server""> 给我们留言:<br /> 主题:<asp:TextBox ID=""TextBox2"" runat=""server"" Width=""411px""></asp:TextBox> <br /> 内容:<br /> <asp:TextBox ID=""TextBox1"" runat=""server"" Height=""150px"" TextMode=""MultiLine"" Width=""99%""></asp:TextBox> <br /> <asp:Button ID=""Button1"" runat=""server"" Text=""留言"" onclick=""Button1_Click"" /> </asp:Panel> </div> </div> <div class=""copyright"">copyright ASP.NET 3.5开发大全 2008@</div> </form></body></html>后台
using System;using System.Collections;using System.Configuration;using System.Data;using System.Data.SqlClient;using System.Linq;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.HtmlControls;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Xml.Linq;using SQLHelper;namespace _28_1{ public partial class Gbook : System.Web.UI.Page { protected void Page_Load(object sender EventArgs e) { if (Session[""username""] == null || Session[""userid""] == null) { Panel1.Visible = false; } } protected void Button1_Click(object sender EventArgs e) { try { string strsql = ""insert into gbook (titlenametimecontentreptitleadminreptimerepcontentclassiduserid) values ('"" + TextBox2.Text + ""''"" + Session[""username""].ToString() + ""''"" + DateTime.Now + ""''"" + TextBox1.Text + ""''''''"" + DateTime.Now + ""''''"" + Request.QueryString[""cid""] + ""''"" + Session[""userid""].ToString() + ""')""; SQLHelper.SQLHelper.ExecNonQuery(strsql); Response.Redirect(""Gbook.aspx?cid="" + Request.QueryString[""cid""]); } catch { //编写错误处理 } } }}请问这是什么原因造成的？
解决方案
将登录和注册都换成服务器组件Button，也就是将img标记换成Button标记；然后在后台代码为Button添加Click事件，在事件里使用Response.Redirect(url)方法跳转到指定页面。
时间： 2024-09-17 04:01:59