文本框keyUp事件的搜索复选框

Question

我有一个Webform应用程序，在.aspx页面中，我有多个表，每个表都有复选框列表。

我想在文本框键入事件中获得预订人员复选框，但它会在每个表中搜索所有复选框列表

这是预订人员复选框的代码

<table cellpadding="0" cellspacing="0" class="tblEntry" id="tblPersonnel">
                <tr>
                    <td class="tableheading">BOOKING PERSONNEL DETAILS
                    </td>
                </tr>
                <tr>
                    <td class="tblEntryOneColumn" style="display: block; overflow-y: scroll; height: 285px; border-bottom: 1px solid #DDD;">
                        <asp:TextBox ID="txtSearch" runat="server"></asp:TextBox>
                        <asp:CheckBoxList ID="cblBookingBy" runat="server" />
                    </td>
                </tr>
            </table>

及以下是项目详细信息复选框列表

  <table cellpadding="0" cellspacing="0" class="tblEntry">
                <tr>
                    <td class="tableheading">PROJECTS DETAILS
                    </td>
                </tr>
                <tr>
                    <td id="tdProjects" runat="server" class="tblEntryOneColumn" style="display: block; overflow-y: scroll; height: 300px; border-bottom: 1px solid #DDD;">
                        <asp:CheckBoxList ID="cblProjects" runat="server" ValidationGroup="projects" />
                        <asp:CustomValidator ID="CustomValidator" runat="server" ErrorMessage="Please select at least one project!"
                            ClientValidationFunction="ValidateProjectList" CssClass="ValidationError" Style="margin-top: -355px;"
                            ValidationGroup="projects">Please select at least one project</asp:CustomValidator>
                    </td>
                </tr>
            </table>

问题在于下面的jquery代码，它只在两个表中搜索，我只希望它仅搜索预订人员表复选框列表

$('#<%= txtSearch.ClientID %>').bind('keyup', function (event) {
              var valThis = $(this).val().toLowerCase();

                $('input[type=checkbox]').each(function () {
                    var text = $("label[for='" + $(this).attr('id') + "']").text().toLowerCase();

                    (text.indexOf(valThis) == 0) ? $(this).parent().show() : $(this).parent().hide();
                });
            });