我有一个 asp:panel，上面有一些单选按钮/文本框。一旦我单击任何错误的单选按钮/文本框，面板就会自行隐藏，只有在我单击搜索按钮时才会发回。代码如下：
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="PortfolioMenu.ascx.cs" Inherits="Jmmb.PortfolioManagement.WebSite.UserControls.PortfolioMenu" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<div class="navbar">
<div class="navbar-inner">
<%--<a class="brand" href="#"><asp:Literal ID="litSiteName" Text="<%$ Resources:General, SiteName %>" runat="server"></asp:Literal></a>--%>
<ul class="nav">
<li>
<asp:HyperLink ID="lnkNewPortfolio" runat="server" CssClass="">
<i class="icon-plus"></i>
<asp:Literal ID="Literal6" runat="server" Text="<%$ Resources:MenuItem_NewPortfolio %>"></asp:Literal>
</asp:HyperLink>
</li>
<li>
<asp:HyperLink ID="lnkSearch" runat="server" CssClass="">
<i class="icon-search"></i>
<asp:Literal ID="litSearch" runat="server" Text="<%$ Resources:MenuItem_Search %>"></asp:Literal>
</asp:HyperLink>
</li>
<!-- <asp:PlaceHolder ID="PlaceHolder1" runat="server">
<li class="dropdown">
<a href="#" id="viewdrop" role="button" class="dropdown-toggle" data-toggle="dropdown">
<i class="icon-folder-close">
</i>
<asp:Literal ID="literally2" runat="server" Text="<%$ Resources:MenuItem_View %>"></asp:Literal>
<b class="caret"></b>
</a>
<ul class="dropdown-menu" role="menu" aria-labelledby="drop3">
<li id="li1" runat="server">
<asp:HyperLink ID="lnkStandardDocs" runat="server">
<i class="icon-folder-open"></i>
<asp:Literal ID="Literally8" runat="server" Text="<%$ Resources:MenuItem_Standard Documents%>"></asp:Literal>
</asp:HyperLink>
</li>
</ul>
</li>
</asp:PlaceHolder> -->
<asp:PlaceHolder ID="PlaceHolder2" runat="server">
<li>
<asp:Panel runat="server" Visible="true">
<asp:TextBox ID="txtSearchAdvancedKeyword" runat="server" Text="<%$ Resources:MenuItem_Enter_Keyword %>" ></asp:TextBox>
<asp:LinkButton runat="server" OnClick="search"><i class="icon-search" style="margin-bottom:5px"></i></asp:LinkButton> </asp:Panel>
</li>
<li class="dropdown" style="margin-left:-74px;margin-top:-5px;">
<a href="#" id="A1" role="button" class="dropdown-toggle" data-toggle="dropdown" style="margin-top:6px;padding-top:4px;padding-bottom:4px;">
<b class="caret"></b>
</a>
<ul class="dropdown-menu" role="menu" aria-labelledby="drop3" style="margin-left:-180px">
<li id="li2" runat="server" style="margin:20px">
<br />
<asp:Literal ID="Literal10" runat="server">Search By</asp:Literal>
<br />
<asp:Panel runat="server" Width="500" Visible="true" >
<!--<ul class="nav">-->
<br />
<asp:RadioButton ID="SearchAdvancedTypePortfolio" GroupName="SearchAdvancedType" runat="server" />
<asp:Label runat="server" Text="Portfolio"></asp:Label>
<asp:Label runat="server" Text=" "></asp:Label>
<asp:RadioButton ID="SearchAdvancedTypeClient" GroupName="SearchAdvancedType" runat="server"/>
<asp:Label runat="server" Text="Client"></asp:Label>
<asp:Label runat="server" Text=" "></asp:Label>
<asp:RadioButton ID="SearchAdvancedTypeAgent" GroupName="SearchAdvancedType" runat="server"/>
<asp:Label runat="server" Text="Agent"></asp:Label>
<br />
<br />
<asp:TextBox runat="server" ID="txtSearchByNo" Text="Number" Width="100"></asp:TextBox>
<asp:Label runat="server" Text=" "></asp:Label>
<asp:Literal runat="server">Or</asp:Literal>
<asp:Label runat="server" Text=" "></asp:Label>
<asp:TextBox runat="server" ID="txtSearchByName" Text="Name" Width="100"></asp:TextBox>
<!-- </ul>-->
</asp:Panel>
<br />
<asp:Literal ID="Literal9" runat="server">And Or By</asp:Literal>
<br />
<asp:Panel ID="Panel1" runat="server" Width="500">
<div class="navbar-inner">
<ul class="nav">
<br />
<asp:RadioButton ID="SearchAdvancedLastReviewDate" GroupName="SearchAdvancedDate" runat="server"/>
<asp:Label runat="server" Text="Last Review Date"></asp:Label>
<asp:Label runat="server" Text=" "></asp:Label>
<asp:RadioButton ID="SearchAdvancedNextReviewDate" GroupName="SearchAdvancedDate" runat="server"/>
<asp:Label runat="server" Text="Next Review Date"></asp:Label>
<asp:Label runat="server" Text=" "></asp:Label>
<asp:RadioButton ID="SearchAdvancedCreateDate" GroupName="SearchAdvancedDate" runat="server"/>
<asp:Label runat="server" Text="Create Date"></asp:Label>
<br />
<br />
<asp:CalendarExtender ID="SearchAdvancedAjaxTDateExtender1" runat="server" TargetControlID="txtSearchAdvancedDateStart"
PopupButtonID="image2" PopupPosition="BottomLeft">
</asp:CalendarExtender>
<asp:TextBox ID="txtSearchAdvancedDateStart" BackColor="White" runat="server" Text="Start" CssClass="" style="cursor :default" Width="100"></asp:TextBox>
<img id="SearchAdvancedImg1" alt="" src="~/Content/images/date_delete.png" runat="server"/>
<asp:Label ID="Label1" runat="server" Text=" "></asp:Label>
<asp:CalendarExtender ID="SearchAdvancedAjaxTDateExtender2" runat="server" TargetControlID="txtSearchAdvancedDateEnd"
PopupButtonID="image2" PopupPosition="BottomLeft">
</asp:CalendarExtender>
<asp:TextBox ID="txtSearchAdvancedDateEnd" runat="server" CssClass="" BackColor="White" Text="End" style="cursor :default" Width="100"></asp:TextBox>
<img id="SearchAdvancedImg2" alt="" src="~/Content/images/date_delete.png" runat="server"/>
</ul>
</div>
</asp:Panel>
<br />
<asp:Button runat="server" ID="btnSearchAdvanced" Text="Search" OnClick="submit"></asp:Button>
<br />
</li>
</ul>
</li>
</asp:PlaceHolder>
<asp:PlaceHolder ID="phManageMenu" runat="server">
<li class="dropdown">
<a href="#" id="drop3" role="button" class="dropdown-toggle" data-toggle="dropdown">
<i class="icon-tasks"></i>
<asp:Literal ID="Literal1" runat="server" Text="<%$ Resources:MenuItem_Manage %>"></asp:Literal>
<b class="caret"></b>
</a>
<ul class="dropdown-menu" role="menu" aria-labelledby="drop3">
<li id="liSettings" runat="server">
<asp:HyperLink ID="lnkSettings" runat="server">
<i class="icon-wrench"></i>
<asp:Literal ID="Literal2" runat="server" Text="<%$ Resources:MenuItem_Settings %>"></asp:Literal>
</asp:HyperLink>
</li>
<li id="liClients" runat="server">
<asp:HyperLink ID="lnkClients" runat="server">
<i class="icon-user"></i>
<asp:Literal ID="Literal3" runat="server" Text="<%$ Resources:MenuItem_Clients %>"></asp:Literal>
</asp:HyperLink>
</li>
<li id="liAccounts" runat="server">
<asp:HyperLink ID="lnkAccounts" runat="server">
<i class="icon-briefcase"></i>
<asp:Literal ID="Literal4" runat="server" Text="<%$ Resources:MenuItem_Accounts %>"></asp:Literal>
</asp:HyperLink>
</li>
<li id="liAttachments" runat="server">
<asp:HyperLink ID="lnkAttachments" runat="server">
<i class="icon-download-alt"></i>
<asp:Literal ID="Literal5" runat="server" Text="<%$ Resources:MenuItem_Attachments %>"></asp:Literal>
</asp:HyperLink>
</li>
<li>
<asp:HyperLink ID="lnkRecommendation" runat="server" >
<i class="icon-bullhorn"></i>
<asp:Literal ID="Literal8" runat="server" Text="<%$ Resources:Recommendations %>"></asp:Literal>
</asp:HyperLink>
</li>
<li class="divider"></li>
<li id="liObjectives" runat="server">
<asp:HyperLink ID="lnkObjectives" runat="server">
<i class="icon-calendar"></i>
<asp:Literal ID="Literal7" runat="server" Text="<%$ Resources:MenuItem_Objectives %>"></asp:Literal>
</asp:HyperLink>
</li>
</ul>
</li>
</asp:PlaceHolder>
<li class="divider-vertical"></li>
</ul>
<asp:PlaceHolder ID="phPortfolioNumber" runat="server" Visible="false">
<ul class="nav pull-right">
<li>
<asp:HyperLink ID="lnkPortfolio" runat="server">
<asp:Label ID="lblPortfolioName" runat="server" Text="<%$ Resources:Label_PortolioName %>"></asp:Label>
<asp:Literal ID="litPortfolioName" runat="server"></asp:Literal>
(<asp:Literal ID="litPortfolioNumber" runat="server"></asp:Literal>)
</asp:HyperLink>
</li>
</ul>
</asp:PlaceHolder>
</div>
</div>
有人知道吗？
谢谢