Messaggio di errore, “La collezione I controlli non può essere modificato perché il controllo contiene blocchi di codice”

Question

sto ricevendo questo errore su una pagina che in precedenza ha lavorato bene, in realtà l'unico cambiamento che ho fatto alla pagina di recente è stato di aggiungere un altro asp: TextBox e asp:. Controllo RequiredFieldValidator

La pagina già aveva numerosi controlli ASP.NET su di esso, quindi non posso capire perché questi controlli aggiuntivi potrebbero fare la differenza, in ogni caso io inviare il codice qui sotto e, auspicabilmente, si può vedere ciò che l'errore è:

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="MeetingGenerator.ascx.cs" 
Inherits="usercontrols_MeetingGenerator" %>

<%@ Register TagPrefix="cc1" Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" %>

<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<div style="width:498px;height:425px;background-color:#033b2a;text-align:center;padding-top:20px;">    

    <asp:Label ID="lblDone" CssClass="done" runat="server"></asp:Label>

    <asp:Panel id="pnlAddReport" runat="server">
    <div>
        <img src="../images/banners/add-meeting.png" alt="Add Report" />
    </div>
    <p>

    <asp:ValidationSummary ID="ValidationSummary"  CssClass="validationsummary" runat="server" />
        <asp:TextBox ID="txtTitle" BorderStyle="None" CssClass="watermark" 
            Width="250px" Height="22px" runat="server"></asp:TextBox>
        <cc1:TextBoxWatermarkExtender ID="TextBoxWatermarkExtender1" TargetControlID="txtTitle" WatermarkCssClass="watermark"
             WatermarkText=" Meeting title" runat="server"></cc1:TextBoxWatermarkExtender>
        <asp:RequiredFieldValidator ID="rfvTitle" ControlToValidate="txtTitle" Text=""
             ErrorMessage="Please enter the title" Display="None" 
             InitialValue="" runat="server"></asp:RequiredFieldValidator>
        <asp:RequiredFieldValidator ID="rfvTitle1" ControlToValidate="txtTitle" Text=""
             ErrorMessage="Please enter the title" Display="None" 
             InitialValue=" Meeting title" runat="server"></asp:RequiredFieldValidator>
    </p>

    <p>
        <asp:TextBox ID="txtDate" BorderStyle="None" CssClass="watermark" 
            Width="250px" Height="22px" runat="server"></asp:TextBox>
        <cc1:CalendarExtender ID="ceDate" TargetControlID="txtDate" Format="dd/MM/yyyy" runat="server">
            </cc1:CalendarExtender>
        <cc1:TextBoxWatermarkExtender ID="TextBoxWatermarkExtender2" TargetControlID="txtDate" WatermarkCssClass="watermark"
             WatermarkText=" Meeting Date" runat="server"></cc1:TextBoxWatermarkExtender>
        <asp:RequiredFieldValidator ID="rfvDate" ControlToValidate="txtDate" Text=""
             ErrorMessage="Please select the meeting date" Display="None" 
             InitialValue="" runat="server"></asp:RequiredFieldValidator>
        <asp:RequiredFieldValidator ID="rfvDate1" ControlToValidate="txtDate" Text=""
             ErrorMessage="Please select the meeting date" Display="None" 
             InitialValue=" Meeting Date" runat="server"></asp:RequiredFieldValidator>
    </p>

    <p>
        <asp:TextBox ID="txtMeetingTime" BorderStyle="None" Width="250px" Height="22px" MaxLength="5"
             runat="server"></asp:TextBox>
        <cc1:TextBoxWatermarkExtender ID="tweMeetingTime" TargetControlID="txtMeetingTime" WatermarkCssClass="watermark"
             WatermarkText=" Time (HH:MM)" runat="server"></cc1:TextBoxWatermarkExtender>
        <asp:RequiredFieldValidator ID="RequiredFieldValidator1" ControlToValidate="txtMeetingTime" Text=""
             ErrorMessage="Please enter the meeting time" Display="None" 
             InitialValue="" runat="server"></asp:RequiredFieldValidator> 
    <asp:RequiredFieldValidator ID="RequiredFieldValidator11" ControlToValidate="txtMeetingTime" Text=""
             ErrorMessage="Please enter the meeting time" Display="None" 
             InitialValue=" Time (HH:MM)" runat="server"></asp:RequiredFieldValidator>    
    </p>

    <p>
        <asp:TextBox ID="txtLocation" BorderStyle="None" CssClass="watermark" 
            Width="250px" Height="22px" runat="server"></asp:TextBox>
        <cc1:TextBoxWatermarkExtender ID="TextBoxWatermarkExtender3" TargetControlID="txtLocation" WatermarkCssClass="watermark"
             WatermarkText=" Location" runat="server"></cc1:TextBoxWatermarkExtender>
        <asp:RequiredFieldValidator ID="rfvLocation" ControlToValidate="txtLocation" Text=""
             ErrorMessage="Please enter the location" Display="None" 
             InitialValue="" runat="server"></asp:RequiredFieldValidator>
        <asp:RequiredFieldValidator ID="rfvLocation1" ControlToValidate="txtLocation" Text=""
             ErrorMessage="Please enter the location" Display="None" 
             InitialValue=" Location" runat="server"></asp:RequiredFieldValidator>
    </p>

    <p>
    <asp:ImageButton ID="btnAddMeeting" ImageUrl="/images/buttons/addmeeting-btn.gif" runat="server" OnClick="btnAddMeeting_Click" />

    </p>

    <p>

    </p>
    </asp:Panel>
</div>

---

<%@ Master Language="C#" MasterPageFile="/masterpages/Master.master" AutoEventWireup="true" %>

<asp:content ContentPlaceHolderId="additionalhead" runat="server">

</asp:content>

<asp:content ContentPlaceHolderId="additionalbody" runat="server">
    <umbraco:Macro Alias="AddMeeting" runat="server"></umbraco:Macro>   
</asp:content>

<asp:content ContentPlaceHolderId="bodyContent" runat="server">

</asp:content>

---

<%@ Master Language="C#" AutoEventWireup="true"  %>

<!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><umbraco:Item field="title" runat="server"></umbraco:Item></title>

    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js"></script>
    <script type="text/javascript" src="/js/jQueryString-2.0.2-Min.js"></script>

    <link rel="stylesheet" type="text/css" href="/css/Styles.css" />
    <link rel="stylesheet" type="text/css" href="/css/Layout.css" />
    <link rel="stylesheet" type="text/css" href="/css/Forms.css" />


    <script type="text/javascript" language="javascript">
        $(document).ready(function () {
            $('#uploadAgenda').hide();
            $('#uploadMinutes').hide();
            $('#<%=txtSearchEAA.ClientID%>').val('Search EAA');

            var st = $.getQueryString({ ID:"search" });
            if (st != '') {
                $('#<%=txtSearchEAA.ClientID%>').val(st);
            };

            $('#<%=txtSearchEAA.ClientID%>').click(function() {
                $('#<%=txtSearchEAA.ClientID%>').val('');
            });
        });
    </script>

    <script type="text/C#" runat="server">
        protected void btnSearch_Click(object sender, EventArgs e)
        {
            Response.Redirect("/members/search-results?search=" + txtSearchEAA.Text);
        }
    </script>


    <asp:ContentPlaceHolder id="additionalhead" runat="server"></asp:ContentPlaceHolder>
    <umbraco:Item field="AdditionalHead" runat="server"></umbraco:Item>
</head>
<body style="background-color:#e5e5e5;">

<script runat="server">
protected void btnLogout_Click(object sender, EventArgs e)
{
    FormsAuthentication.SignOut();
    Response.Redirect("/login");
}
</script>

    <form id="form1" runat="server">
    <asp:ContentPlaceHolder id="additionalbody" runat="server"></asp:ContentPlaceHolder>
        <div class="wrapper">
            <div class="content">
                <div class="banner">
                    <div class="bannerSearchSpacer">
                        <a href="/home"><h1><span>EAA</span></h1></a>
                    </div>  

            <div class="aboutEAA">
                &nbsp;
            </div>

            <div class="bannerSearchAligns">
                        <div class="searchbox">
                                <asp:TextBox ID="txtSearchEAA" CssClass="watermark"
                        Width="155px" runat="server"></asp:TextBox>
                        </div>
                        <div class="searchButton">
                                <asp:ImageButton ID="imbSearch" ImageUrl="/images/buttons/go.gif" OnClick="btnSearch_Click" runat="server" />
                        </div>
                    <div style="clear:both;"></div>
                    </div>

            <div class="loginBox">
                        <dl>
                    <dt>Hello</dt>
                    <dd><umbraco:Macro Alias="MemberName" runat="server"></umbraco:Macro></dd>
                    <dt>Arena</dt>
                    <dd><umbraco:Macro Alias="MemberArena" runat="server"></umbraco:Macro></dd>
                </dl>
                <div><asp:ImageButton ID="btnLogout" ImageUrl="/images/buttons/logout.gif" runat="server" OnClick="btnLogout_Click" /></div>
                    </div>
            <div style="clear:both;"></div>
        </div>



       <div id="contentarea">
            <div class="menuLeft">                
                <div class="menuPlaceholder">
                    <umbraco:Macro Alias="DynamicMenu" runat="server"></umbraco:Macro>
                </div>
            </div>  
                <div class="mainBody">
                    <asp:ContentPlaceHolder id="bodyContent" runat="server"></asp:ContentPlaceHolder>
                </div>

                <div style="clear:both;"></div>
            </div>
        </div>
    </div>

    </form>



<umbraco:Macro Alias="MemberAnalytics" runat="server"></umbraco:Macro>



</body>
</html>

Answer 1

E 'stato risolto rimuovendo i blocchi di codice dai selettori di jQuery e cambiando loro di nominare * = selettori invece. La modifica <% = a <% # non ha risolto il problema, speriamo che il cambiamento di selezione lavorerà per altre persone.

Answer 2

Prova a cambiare <% = a # <% all'interno dello script jQuery. Scopri questo articolo