jquery 依据条件设置checkbox 默认选中

jquery 根据条件设置checkbox 默认选中

HTML code

<script type="text/javascript">        $(document).ready(function () {            var vClassID = $("#ddlClassID").val();            if (vClassID > 0) {                $.ajax({                    type: "POST",                    contentType: "application/json",                    url: "/webservices/common.asmx/GetTags",                    data: "{ClassID:'" + vClassID + "'}",                    dataType: 'json',                    success: function (result) {                        var s = result.d;                        $("#tags").html(s);                    }                });            }            var tags = $("#hidTags").val();            $("#ddlClassID").change(function () {                if ($(this).val() > 0) {                    $.ajax({                        type: "POST",                        contentType: "application/json",                        url: "/webservices/common.asmx/GetTags",                        data: "{ClassID:'" + $(this).val() + "'}",                        dataType: 'json',                        success: function (result) {                            var s = result.d;                            $("#tags").html(s);                        }                    });                }            });        });            </script>

HTML code

<asp:DropDownList ID="ddlClassID" runat="server"></asp:DropDownList><span id="tags"></span><input type="hidden" name="hidTags" id="hidTags" value="aaa,ccc" />

common.asmx返回如下
<span><input type='checkbox' name='cbTag' value='aaa' />aaa </span>
<span><input type='checkbox' name='cbTag' value='bbb' />bbb</span>
<span><input type='checkbox' name='cbTag' value='ccc' />ccc </span>


获取hidTags的值 为aaa,ccc 设置checkbox默认选中 aaa,ccc


[解决办法]

JScript code

 var items = $("#hidTags").val().split(/[,，]/g);            $.each(items, function (index, item) {                $("input[name='cbTag']").each(function () {                    if ($(this).val() == item) {                        $(this).attr("checked",true);                    }                });            });
[解决办法]
你不能写到success: function (result) {}外面，写到外面就是错误的了 

 

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