可以DDL控制复选框

Question

DropdownList控制复选框，基本上我的意思是

我有一堆表示名称设置的复选框。所有复选框都显示在页面上。

我创建了一个带有名称的DDL，如果我从DDL中选择一个名称，我可以让DDL检查分配给该名称的任何设置。

或者它不是DDL的内置功能。任何想法

       `var r = document.getElementById("Search$AllNamesDDL").innerHTML;
        var User = e.option[e.selectedIndex].value;
        console.log('User:' + User);
        var rs = r.split('</option>');

        document.getElementById("Search$AllNamesDDL").innerHTML;
        for (var i =0; i<=rs ,i++)
        {
            If (rs[i])
            {
                var cleanme = rs[i].replace('<option value="', "");

                var sub0 = cleanme.split('">');

                console.log("sub0 for (" + i + ") =>" + sub0[1]);

                if (sub0[1]) 
                {
                    var startWith = sub0[1].substring(0, 1);

                    console.log('The letter you asked for was found for this object');

                    document.getElementById("Search$AllDevicesDDL").innerHTML += '<option id="' + sub0[1] + '" value="' + sub0[1] + '">' + sub0[1] + '</option>';

                }//ifstarWith=alpha


            }//for the if(rs[i]

        }//for the for condirtional

        strSelected='';
        var e=document.getElementById("Search_settingSelectCheckBox");

        var strSelected=e.options[e.SelectedIndex].value;


        $('Search_settingSelectCheckBox').change(function() {
            var selected = $('Search_settingSelectCheckBox option:selected');
            if (selected.val() == "Select A Device") {
                $('input[input=".markerSettingSelectCheckBoxList"]').prop('checked', false);
            }
            else {
                $('input[input=".markerSettingSelectCheckBoxList"]').prop('checked', true);
            }
        })`








    }//for the whole function
    )`

这是asp代码： `

             EnableViewState="true"  >
            <asp:ListItem Text="-Select-" Value="Select"  Enabled="true"/> 
        </asp:DropDownList>

         <asp:SqlDataSource ID="AllNamesSqlDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:SiteSqlServer %>" 
            SelectCommand="SELECT * FROM [Names]">

<input type="button" value="Select All" class="markerSelectAll"/>
<input type="button" value="Unselect All" class="markerUnSelectAll"/>

<asp:ObjectDataSource runat="server" ID="SettingsObjectDataSource" SelectMethod="GetDistinctNamesSettingNames" 
    TypeName="class"></asp:ObjectDataSource>`