JSON+Jquery省市区三级联动
效果图如下所示：
废话不多说了，直接给大家贴代码了，具体代码如下所示：
<script src="../Scripts/jquery-1.4.1.min.js" type="text/javascript"></script> <!--读取数据库，以json的格式输出，然后复制json数据，创建js文件-->
<script src="json/CityJson.js" type="text/javascript"></script>
<script src="json/ProJson.js" type="text/javascript"></script>
<script src="json/DistrictJson.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$.each(province, function (k, p) {
var option = "<option value='" + p.ProID + "'>" + p.ProName + "</option>";
$("#selProvince").append(option);
});
$("#selProvince").change(function () {
var selValue = $(this).val();
$("#selCity option:gt(0)").remove();
$.each(city, function (k, p) {
if (p.ProID == selValue) {
var option = "<option value='" + p.CityID + "'>" + p.CityName + "</option>";
$("#selCity").append(option);
}
});
});
$("#selCity").change(function () {
var selValue = $(this).val();
$("#selDistrict option:gt(0)").remove();
$.each(District, function (k, p) {
if (p.CityID == selValue) {
var option = "<option value='" + p.Id + "'>" + p.DisName + "</option>";
$("#selDistrict").append(option);
}
});
});
});
</script>
</head>
<body>
<select id="selProvince">
<option value="0">--请选择省份--</option>
</select>
<select id="selCity">
<option value="0">--请选择城市--</option>
<option>aaaa</option>
<option>aaaa</option>
</select>
<select id="selDistrict">
<option value="0">--请选择区/县--</option>
</select>
<input type="button" id="btnOK" value="确定" />
</body>
</html>本段代码比较简单，实用性也非常高，希望本文所述对大家有所帮助。
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