问题遇到的现象和发生背景
写入SelectCommand="SELECT * FROM [news] WHERE ([id] = @id)"后,原来的显示内容没了,想要他默认显示第一条数据
遇到的现象和发生背景,请写出第一个错误信息
原来的显示内容没了
用代码块功能插入代码,请勿粘贴截图。 不用代码块回答率下降 50%
这个是newsdetail界面
<%@ Page Title="" Language="C#" MasterPageFile="~/Site1.Master" AutoEventWireup="true" CodeBehind="newsdetail.aspx.cs" Inherits="WebApplication1.newsdetail" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
<style>
#dtop {
text-align: center;
width: 800px;
margin-top: 20px;
border-bottom: 1px solid grey;
}
div#dtime {
width: 800px;
margin-top: 10px;
text-align: center;
}
</style>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<asp:DataList ID="DataList1" runat="server" DataSourceID="SqlDataSource1">
<ItemTemplate>
<div id="dtop">
<asp:Label ID="titleLabel" runat="server" Text='<%# Eval("title") %>' />
</div>
<div id="dtime">
<asp:Label ID="createTimeLabel" runat="server" Text='<%# Eval("createTime") %>' />
</div>
<div id="dcontent">
<asp:Label ID="contentsLabel" runat="server" Text='<%# Eval("contents") %>' />
</div>
</ItemTemplate>
</asp:DataList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:WeCat52ConnectionString %>" SelectCommand="SELECT * FROM [news] WHERE ([id] = @id)">
<SelectParameters>
<asp:QueryStringParameter Name="id" QueryStringField="id" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
</asp:Content>
这个是首页index
<%@ Page Title="" Language="C#" MasterPageFile="~/Site1.Master" AutoEventWireup="true" CodeBehind="index.aspx.cs" Inherits="WebApplication1.WebForm1" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
<style>
#nLeft {
float: left;
width: 200px;
}
#nRight {
float: left;
width: 400px;
}
#nLeft a{
text-decoration:none;
display:inline-block;
width:200px;
}
#nLeft a:hover{
background:grey;
}
</style>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<asp:DataList ID="DataList1" runat="server" DataSourceID="SqlDataSource1">
<ItemTemplate>
<div id="nLeft">
<asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%# "newsdetail.aspx?id="+Eval("id") %>' Text='<%# Eval("title") %>'></asp:HyperLink>
</div>
<div id="nRight">
<asp:Label ID="createTimeLabel" runat="server" Text='<%# Eval("createTime") %>' />
</div>
</ItemTemplate>
</asp:DataList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:WeCat52ConnectionString %>" SelectCommand="SELECT top 10 * FROM [news] order by id desc"></asp:SqlDataSource>
</asp:Content>
运行结果及详细报错内容
无报错
我的解答思路和尝试过的方法,不写自己思路的,回答率下降 60%
不知道怎么调
我想要达到的结果,如果你需要快速回答,请尝试 “付费悬赏”
newsdetail界面直接打开获取第一条数据,从index首页打开选择对应的新闻能跳转到newsdetail界面对应的id(已经实现)