在当前上下文中找不到数据列表
我正在开发一个网页并使用数据列表控件。
<%@ Page Language="C#" MasterPageFile="~/Master.master" AutoEventWireup="true" CodeFile="Concerts.aspx.cs"
Inherits="Default2" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
_uacct="UA-15707367-1";
urchinTracker();
</script>
</asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="ContentPlaceHolder2" runat="Server">
<%= strModuleName%>
<asp:UpdatePanel ID="upUpdateConcert" runat="server">
<ContentTemplate>
<div class="LeftContaionerTopTextStyle">
<asp:LinkButton ID="lnkConcert" CssClass="LeftContainerHeaderText" runat="server" OnClick="lnkConcert_Click">Concerts & Tickets</asp:LinkButton><br />
<asp:LinkButton ID="lnkTickets" CssClass="Link" runat="server" OnClick="lnkConcert_Click">Ticket Policies </asp:LinkButton><br />
<asp:LinkButton ID="lnkSeating" CssClass="Link" runat="server" OnClick="lnkConcert_Click">Seating Chart</asp:LinkButton><br />
<asp:LinkButton ID="lnkGroup" CssClass="Link" runat="server" OnClick="lnkConcert_Click">Group Sales </asp:LinkButton><br />
<asp:LinkButton ID="lnkDirection" CssClass="Link" runat="server" OnClick="lnkConcert_Click">Directions & Parking</asp:LinkButton><br />
</div>
</ContentTemplate>
</asp:UpdatePanel>
<%-- DATALIST FOR CONCERT TITLE AND IMAGE --%>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
<div class="RightContainerHeaderText">
<%#Eval("ConcertTitle") %>
</div>
<div class="RightContainerText">
<div class="HomeLeftPanel">
<%-- DATALIST FOR CONCERT DATE IMAGE --%>
<asp:DataList ID="dlConcerts" runat="server" OnItemDataBound="dlConcerts_ItemDataBound"
RepeatColumns="1" OnItemCommand="dlConcerts_ItemCommand" RepeatDirection="Vertical"
>
<ItemTemplate>
<div id="divHr" runat="server" class="DivHRConcerts">
<div class="DivInnerHRConcerts">
2010-2012 Concert Season
</div>
</div>
<div class="LeftConcertsContainer">
<div class="LeftConcertsImageContainer">
<img src='ConcertImages/<%#Eval("ConcertImage") %>' alt='<%#Eval("ConcertImage") %>'
title='<%#Eval("ConcertImage") %>' />
</div>
<div class="LeftConcertsHeading">
<span class="HeadingGreen">
<%#Eval("ConcertTitle") %></span><br />
<%-- DATALIST FOR CONCERT DATE IMAGE --%>
<asp:DataList ID="dlConcertDates" runat="server">
<ItemTemplate>
<span class="ConcertsTime">
<%#Eval("ConcertDate") %></span>
</ItemTemplate>
</asp:DataList>
</div>
<div class="ConcertsLeftTextArea">
<%-- DATALIST FOR CONCERT GUESTS IMAGE --%>
<asp:DataList ID="dlConcertGuests" runat="server" RepeatColumns="1" RepeatDirection="Vertical">
<ItemTemplate>
<table cellpadding="0" cellspacing="0" border="0" width="100%">
<tr>
<td>
<%#Eval("GuestName") %><span>, </span><%#Eval("InstrumentName") %>
</td>
</tr>
</table>
</ItemTemplate>
</asp:DataList>
</div>
<div class="ConcertsRightTextContainer">
<div class="ConcertsRightTextArea">
<%-- DATALIST FOR CONCERT REPERTORIE IMAGE --%>
<asp:DataList ID="dlRepetoire" runat="server" RepeatColumns="1" RepeatDirection="Vertical">
<HeaderTemplate>
<table cellpadding="0" cellspacing="0" border="0" width="212px">
</HeaderTemplate>
<ItemTemplate>
<tr>
<td valign="top" style="width:90px">
<%#Eval("RepertoireName") %>
</td>
<td style="width:10px">
</td>
<td valign="top">
<%#Eval("RepertoireTitle")%>
</td>
</tr>
</ItemTemplate>
<FooterTemplate>
</table></FooterTemplate>
</asp:DataList>
</div>
<div class="ConcertsButtonContainer" >
<div class="LearnMoreButton" ><a href="Content.aspx?ModuleID=63">
<img src="Images/SubscribeButton.jpg" border="0" /></a></div>
<div class="OrderTicketsButton" id="div1" runat="server"><asp:ImageButton ID="btnLearnMore" ImageUrl="Images/LearnMore.jpg" CommandArgument='<%#Eval("ConcertID") %>'
CommandName="LearnMore" Width="94" Height="19" runat="server" />
</div>
<div class="OrderTicketsButton" id="divSingleTicket" runat="server">
<div id="sddm" onmouseover="mopen('<%#Eval("ConcertID") %>')"
onmouseout="mclosetime()">
<img src="Images/OrderTickets.jpg" id="imgOrder" style="cursor: pointer;" runat="server"
width="111" height="19" /><br />
<div id='<%#Eval("ConcertID") %>' onmouseover="mcancelclosetime();" onmouseout="mclosetime()">
<table id="tableProjectList" runat="server" cellpadding="0" cellspacing="0" border="0">
</table>
</div>
</div>
</div>
</div>
<div class="SubscribeButton" id="divSubscribe" runat="server" >
<asp:ImageButton ID="btnLearnMore1" ImageUrl="Images/LearnMore.jpg" CommandArgument='<%#Eval("ConcertID") %>'
CommandName="LearnMore" Width="94" Height="19" runat="server" />
</div>
</div>
</div>
<div class="DotImage">
</div>
</ItemTemplate>
</asp:DataList>
</div>
<asp:DataList ID="dlConcerts0" runat="server" OnItemDataBound="dlConcerts_ItemDataBound"
RepeatColumns="1" OnItemCommand="dlConcerts_ItemCommand" RepeatDirection="Vertical"
>
<ItemTemplate>
<div id="divHr0" runat="server" class="DivHRConcerts">
<div class="DivInnerHRConcerts">
2011-2012 Concert Season
</div>
</div>
<div class="LeftConcertsContainer">
<div class="LeftConcertsImageContainer">
<img src='ConcertImages/<%#Eval("ConcertImage") %>' alt='<%#Eval("ConcertImage") %>'
title='<%#Eval("ConcertImage") %>' />
</div>
<div class="LeftConcertsHeading">
<span class="HeadingGreen">
<%#Eval("ConcertTitle") %></span><br />
<%-- DATALIST FOR CONCERT DATE IMAGE --%>
<asp:DataList ID="dlConcertDates" runat="server">
<ItemTemplate>
<span class="ConcertsTime">
<%#Eval("ConcertDate") %></span>
</ItemTemplate>
</asp:DataList>
</div>
<div class="ConcertsLeftTextArea">
<%-- DATALIST FOR CONCERT GUESTS IMAGE --%>
<asp:DataList ID="dlConcertGuests" runat="server" RepeatColumns="1" RepeatDirection="Vertical">
<ItemTemplate>
<table cellpadding="0" cellspacing="0" border="0" width="100%">
<tr>
<td>
<%#Eval("GuestName") %><span>, </span><%#Eval("InstrumentName") %>
</td>
</tr>
</table>
</ItemTemplate>
</asp:DataList>
</div>
<div class="ConcertsRightTextContainer">
<div class="ConcertsRightTextArea">
<%-- DATALIST FOR CONCERT REPERTORIE IMAGE --%>
<asp:DataList ID="dlRepetoire" runat="server" RepeatColumns="1" RepeatDirection="Vertical">
<HeaderTemplate>
<table cellpadding="0" cellspacing="0" border="0" width="212px">
</HeaderTemplate>
<ItemTemplate>
<tr>
<td valign="top" style="width:90px">
<%#Eval("RepertoireName") %>
</td>
<td style="width:10px">
</td>
<td valign="top">
<%#Eval("RepertoireTitle")%>
</td>
</tr>
</ItemTemplate>
<FooterTemplate>
</table></FooterTemplate>
</asp:DataList>
</div>
<div class="ConcertsButtonContainer" >
<div class="LearnMoreButton" ><a href="Content.aspx?ModuleID=63">
<img src="Images/SubscribeButton.jpg" border="0" /></a></div>
<div class="OrderTicketsButton" id="div2" runat="server"><asp:ImageButton ID="btnLearnMore" ImageUrl="Images/LearnMore.jpg" CommandArgument='<%#Eval("ConcertID") %>'
CommandName="LearnMore" Width="94" Height="19" runat="server" />
</div>
<div class="OrderTicketsButton" id="divSingleTicket0" runat="server">
<div id="sddm0" onmouseover="mopen('<%#Eval("ConcertID") %>')"
onmouseout="mclosetime()">
<img src="Images/OrderTickets.jpg" id="imgOrder0" style="cursor: pointer;" runat="server"
width="111" height="19" /><br />
<div id='<%#Eval("ConcertID") %>0' onmouseover="mcancelclosetime();"
onmouseout="mclosetime()">
<table id="tableProjectList0" runat="server" cellpadding="0" cellspacing="0"
border="0">
</table>
</div>
</div>
</div>
</div>
<div class="SubscribeButton" id="divSubscribe0" runat="server" >
<asp:ImageButton ID="btnLearnMore1" ImageUrl="Images/LearnMore.jpg" CommandArgument='<%#Eval("ConcertID") %>'
CommandName="LearnMore" Width="94" Height="19" runat="server" />
</div>
</div>
</div>
<div class="DotImage">
</div>
</ItemTemplate>
</asp:DataList>
</div>
</asp:Content>
当我将它用于编码时,它给出错误 dlConcerts0 不存在
I am working on a webpage and using a datalist control.
<%@ Page Language="C#" MasterPageFile="~/Master.master" AutoEventWireup="true" CodeFile="Concerts.aspx.cs"
Inherits="Default2" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
_uacct="UA-15707367-1";
urchinTracker();
</script>
</asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="ContentPlaceHolder2" runat="Server">
<%= strModuleName%>
<asp:UpdatePanel ID="upUpdateConcert" runat="server">
<ContentTemplate>
<div class="LeftContaionerTopTextStyle">
<asp:LinkButton ID="lnkConcert" CssClass="LeftContainerHeaderText" runat="server" OnClick="lnkConcert_Click">Concerts & Tickets</asp:LinkButton><br />
<asp:LinkButton ID="lnkTickets" CssClass="Link" runat="server" OnClick="lnkConcert_Click">Ticket Policies </asp:LinkButton><br />
<asp:LinkButton ID="lnkSeating" CssClass="Link" runat="server" OnClick="lnkConcert_Click">Seating Chart</asp:LinkButton><br />
<asp:LinkButton ID="lnkGroup" CssClass="Link" runat="server" OnClick="lnkConcert_Click">Group Sales </asp:LinkButton><br />
<asp:LinkButton ID="lnkDirection" CssClass="Link" runat="server" OnClick="lnkConcert_Click">Directions & Parking</asp:LinkButton><br />
</div>
</ContentTemplate>
</asp:UpdatePanel>
<%-- DATALIST FOR CONCERT TITLE AND IMAGE --%>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
<div class="RightContainerHeaderText">
<%#Eval("ConcertTitle") %>
</div>
<div class="RightContainerText">
<div class="HomeLeftPanel">
<%-- DATALIST FOR CONCERT DATE IMAGE --%>
<asp:DataList ID="dlConcerts" runat="server" OnItemDataBound="dlConcerts_ItemDataBound"
RepeatColumns="1" OnItemCommand="dlConcerts_ItemCommand" RepeatDirection="Vertical"
>
<ItemTemplate>
<div id="divHr" runat="server" class="DivHRConcerts">
<div class="DivInnerHRConcerts">
2010-2012 Concert Season
</div>
</div>
<div class="LeftConcertsContainer">
<div class="LeftConcertsImageContainer">
<img src='ConcertImages/<%#Eval("ConcertImage") %>' alt='<%#Eval("ConcertImage") %>'
title='<%#Eval("ConcertImage") %>' />
</div>
<div class="LeftConcertsHeading">
<span class="HeadingGreen">
<%#Eval("ConcertTitle") %></span><br />
<%-- DATALIST FOR CONCERT DATE IMAGE --%>
<asp:DataList ID="dlConcertDates" runat="server">
<ItemTemplate>
<span class="ConcertsTime">
<%#Eval("ConcertDate") %></span>
</ItemTemplate>
</asp:DataList>
</div>
<div class="ConcertsLeftTextArea">
<%-- DATALIST FOR CONCERT GUESTS IMAGE --%>
<asp:DataList ID="dlConcertGuests" runat="server" RepeatColumns="1" RepeatDirection="Vertical">
<ItemTemplate>
<table cellpadding="0" cellspacing="0" border="0" width="100%">
<tr>
<td>
<%#Eval("GuestName") %><span>, </span><%#Eval("InstrumentName") %>
</td>
</tr>
</table>
</ItemTemplate>
</asp:DataList>
</div>
<div class="ConcertsRightTextContainer">
<div class="ConcertsRightTextArea">
<%-- DATALIST FOR CONCERT REPERTORIE IMAGE --%>
<asp:DataList ID="dlRepetoire" runat="server" RepeatColumns="1" RepeatDirection="Vertical">
<HeaderTemplate>
<table cellpadding="0" cellspacing="0" border="0" width="212px">
</HeaderTemplate>
<ItemTemplate>
<tr>
<td valign="top" style="width:90px">
<%#Eval("RepertoireName") %>
</td>
<td style="width:10px">
</td>
<td valign="top">
<%#Eval("RepertoireTitle")%>
</td>
</tr>
</ItemTemplate>
<FooterTemplate>
</table></FooterTemplate>
</asp:DataList>
</div>
<div class="ConcertsButtonContainer" >
<div class="LearnMoreButton" ><a href="Content.aspx?ModuleID=63">
<img src="Images/SubscribeButton.jpg" border="0" /></a></div>
<div class="OrderTicketsButton" id="div1" runat="server"><asp:ImageButton ID="btnLearnMore" ImageUrl="Images/LearnMore.jpg" CommandArgument='<%#Eval("ConcertID") %>'
CommandName="LearnMore" Width="94" Height="19" runat="server" />
</div>
<div class="OrderTicketsButton" id="divSingleTicket" runat="server">
<div id="sddm" onmouseover="mopen('<%#Eval("ConcertID") %>')"
onmouseout="mclosetime()">
<img src="Images/OrderTickets.jpg" id="imgOrder" style="cursor: pointer;" runat="server"
width="111" height="19" /><br />
<div id='<%#Eval("ConcertID") %>' onmouseover="mcancelclosetime();" onmouseout="mclosetime()">
<table id="tableProjectList" runat="server" cellpadding="0" cellspacing="0" border="0">
</table>
</div>
</div>
</div>
</div>
<div class="SubscribeButton" id="divSubscribe" runat="server" >
<asp:ImageButton ID="btnLearnMore1" ImageUrl="Images/LearnMore.jpg" CommandArgument='<%#Eval("ConcertID") %>'
CommandName="LearnMore" Width="94" Height="19" runat="server" />
</div>
</div>
</div>
<div class="DotImage">
</div>
</ItemTemplate>
</asp:DataList>
</div>
<asp:DataList ID="dlConcerts0" runat="server" OnItemDataBound="dlConcerts_ItemDataBound"
RepeatColumns="1" OnItemCommand="dlConcerts_ItemCommand" RepeatDirection="Vertical"
>
<ItemTemplate>
<div id="divHr0" runat="server" class="DivHRConcerts">
<div class="DivInnerHRConcerts">
2011-2012 Concert Season
</div>
</div>
<div class="LeftConcertsContainer">
<div class="LeftConcertsImageContainer">
<img src='ConcertImages/<%#Eval("ConcertImage") %>' alt='<%#Eval("ConcertImage") %>'
title='<%#Eval("ConcertImage") %>' />
</div>
<div class="LeftConcertsHeading">
<span class="HeadingGreen">
<%#Eval("ConcertTitle") %></span><br />
<%-- DATALIST FOR CONCERT DATE IMAGE --%>
<asp:DataList ID="dlConcertDates" runat="server">
<ItemTemplate>
<span class="ConcertsTime">
<%#Eval("ConcertDate") %></span>
</ItemTemplate>
</asp:DataList>
</div>
<div class="ConcertsLeftTextArea">
<%-- DATALIST FOR CONCERT GUESTS IMAGE --%>
<asp:DataList ID="dlConcertGuests" runat="server" RepeatColumns="1" RepeatDirection="Vertical">
<ItemTemplate>
<table cellpadding="0" cellspacing="0" border="0" width="100%">
<tr>
<td>
<%#Eval("GuestName") %><span>, </span><%#Eval("InstrumentName") %>
</td>
</tr>
</table>
</ItemTemplate>
</asp:DataList>
</div>
<div class="ConcertsRightTextContainer">
<div class="ConcertsRightTextArea">
<%-- DATALIST FOR CONCERT REPERTORIE IMAGE --%>
<asp:DataList ID="dlRepetoire" runat="server" RepeatColumns="1" RepeatDirection="Vertical">
<HeaderTemplate>
<table cellpadding="0" cellspacing="0" border="0" width="212px">
</HeaderTemplate>
<ItemTemplate>
<tr>
<td valign="top" style="width:90px">
<%#Eval("RepertoireName") %>
</td>
<td style="width:10px">
</td>
<td valign="top">
<%#Eval("RepertoireTitle")%>
</td>
</tr>
</ItemTemplate>
<FooterTemplate>
</table></FooterTemplate>
</asp:DataList>
</div>
<div class="ConcertsButtonContainer" >
<div class="LearnMoreButton" ><a href="Content.aspx?ModuleID=63">
<img src="Images/SubscribeButton.jpg" border="0" /></a></div>
<div class="OrderTicketsButton" id="div2" runat="server"><asp:ImageButton ID="btnLearnMore" ImageUrl="Images/LearnMore.jpg" CommandArgument='<%#Eval("ConcertID") %>'
CommandName="LearnMore" Width="94" Height="19" runat="server" />
</div>
<div class="OrderTicketsButton" id="divSingleTicket0" runat="server">
<div id="sddm0" onmouseover="mopen('<%#Eval("ConcertID") %>')"
onmouseout="mclosetime()">
<img src="Images/OrderTickets.jpg" id="imgOrder0" style="cursor: pointer;" runat="server"
width="111" height="19" /><br />
<div id='<%#Eval("ConcertID") %>0' onmouseover="mcancelclosetime();"
onmouseout="mclosetime()">
<table id="tableProjectList0" runat="server" cellpadding="0" cellspacing="0"
border="0">
</table>
</div>
</div>
</div>
</div>
<div class="SubscribeButton" id="divSubscribe0" runat="server" >
<asp:ImageButton ID="btnLearnMore1" ImageUrl="Images/LearnMore.jpg" CommandArgument='<%#Eval("ConcertID") %>'
CommandName="LearnMore" Width="94" Height="19" runat="server" />
</div>
</div>
</div>
<div class="DotImage">
</div>
</ItemTemplate>
</asp:DataList>
</div>
</asp:Content>
when i used it into coding then it gives error dlConcerts0 does not exist
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您必须从上层 DataList 控件中找到您的 DataList 控件,例如......
you have to find your DataList Control from your upper DataList control like..