在前端不显示数据的问题 [英] problem in not showing data in front end
本文介绍了在前端不显示数据的问题的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在一个在线购物网站上工作.在该网站上，我给了两个模块admin和user.
在管理模块中，我已经填写了产品子类别表中的所有字段和数据.
现在我想在产品子类别表的用户模块中显示所有这些数据.但是没有数据显示也没有错误... im soo混淆plz帮帮我....下面是我的产品子类别页面的代码. ..plz评论...请指定您的答案...谢谢... !!!!!!!!!!
代码:-
I m working on a online shopping website.in which i have given two modules admin and user.
in admin module i have filled all the fields and data in product sub category table.
Now i wanted to show all those data in user module in product sub category table.but there is no data shown also no error...i m soo confuse plz help me....below there is code of my product sub category page...plz review...ans specify your answer...thanx...!!!!!!!!!!
code:-
using System;
using System.Collections;
using System.Configuration;
using System.Data;
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;
public partial class ProductSubCategory : System.Web.UI.Page
{
Cls_FF c1 = new Cls_FF();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
filldl_subcategory();
}
}
public void filldl_subcategory()
{
DataList2.DataSource = c1.selectDS("select * from ProSubCategory WHERE ProductId='" + Session["Pro_id"] + "'");
DataList2.DataBind();
}
protected void DataList2_ItemCommand(object source, DataListCommandEventArgs e)
{
if (e.CommandName == "details")
{
string _subcatid;
_subcatid = ((Label)DataList2.Items[e.Item.ItemIndex].FindControl("lbl_subid")).Text;
Session.Add("subcatid", _subcatid);
Response.Redirect("ProductDetail.aspx");
}
}
}
<%@ Page Title="" Language="C#" MasterPageFile="~/UserMasterPage.master" AutoEventWireup="true" CodeFile="ProductSubCategory.aspx.cs" Inherits="ProductSubCategory" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
<style type="text/css">
.style6
{
width: 100%;
}
.style12
{
width: 100%;
height: 144px;
}
.style13
{
width: 100%;
height: 93px;
}
.style14
{
width: 100%;
height: 49px;
}
.style18
{
width: 100%;
height: 30px;
}
</style>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<table align="center" cellpadding="5" cellspacing="0" class="style6">
<tr>
<td align="center" class="style18">
<asp:Label ID="Label3" runat="server" Font-Bold="True" Font-Size="Large"
ForeColor="#663300" Text="Product Details"></asp:Label>
</td>
</tr>
<tr>
<td align="left">
<asp:DataList ID="DataList2" runat="server"
onitemcommand="DataList2_ItemCommand" RepeatColumns="2">
<ItemTemplate>
<table align="center" cellpadding="5" cellspacing="0" class="style6">
<tr>
<td>
<table align="center" cellpadding="5" cellspacing="0" class="style6">
<tr>
<td align="center" class="style9">
<asp:ImageButton ID="ImageButton2" runat="server" CommandName="Details"
Height="112px" ImageUrl='<%# Eval("Image") %>' PostBackUrl="~/GemsDetails.aspx"
Width="137px" />
</td>
<td align="left">
<table align="center" cellpadding="5" cellspacing="0" class="style6">
<tr>
<td align="center">
<asp:Label ID="Label4" runat="server" Font-Bold="True" Font-Names="Vani"
ForeColor="#FF9900" Text='<%# Eval("SubCategoryName") %>'></asp:Label>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label5" runat="server" Font-Bold="True" Text="Retail Price:"></asp:Label>
<asp:Label ID="Label6" runat="server" Font-Bold="True" Font-Names="Vani"
ForeColor="Black" Text='<%# Eval("Price") %>'></asp:Label>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label7" runat="server" ForeColor="#336600"
Text="Price For Limited Time"></asp:Label>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lbl_subid" runat="server" ForeColor="#996600"
Text='<%# Eval("SubCategoryId") %>' Visible="False"></asp:Label>
</td>
</tr>
<tr>
<td>
<asp:LinkButton ID="LinkButton9" runat="server" CommandName="Details"
Font-Bold="True" ForeColor="#333300">Deatils...</asp:LinkButton>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</ItemTemplate>
</asp:DataList>
</td>
</tr>
</table>
</asp:Content>
推荐答案
检查几件事:
1.确保:
Check few things:
1. Make sure that the:
c1.selectDS("select * from ProSubCategory WHERE ProductId='" + Session["Pro_id"] + "'");
正在返回一些数据.
2.确保上面返回的数据是一个DataTable.数据源必须是数据表，而不是数据集.
is returning some data.
2. Make sure that data returned above is a DataTable. DataSource needs to be a datatable and not DataSet.
这篇关于在前端不显示数据的问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
