jquery数据不绑定到下拉列表

我无法通过jquery json绑定绑定下拉列表。但在检查浏览器时，我可以看到数据。但不限于下拉列表。请帮帮我。







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检查代码：

I am not able to bind the dropdownlist by jquery json binding. But while inspecting browser i can see the data. But not binding to dropdown. Please help me.



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inspect code :

d: [,…]
0: {__type: "dropdown.WebService1+CountryDetails", CountryId: "211249", CountryName: " New Bolt & Tools"}
CountryId: "211249"
CountryName: " New Bolt & Tools"
__type: "dropdown.WebService1+CountryDetails"

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i需要国家名称绑定

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i need the countryname to bind
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<script type="text/javascript">
    $(document).ready(function () {
        $.ajax({
            type: "POST",
            contentType: "application/json; charset=utf-8",
            url: "WebService1.asmx/BindDatatoDropdown",
            data: JSON.stringify({ bCode: '<%=branchCode %>', stcon: '<%=strCon %>' }),
            dataType: "json",
            success: function (data) {
                $.each(data.d, function (key, value) {
                    $("#ddlCountryx").append($("<option></option>").val(value.CountryId).html(value.CountryName));
                });
            },
            error: function (result) {
                alert("Error");
            }
            });
    });
</script>

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