基于jQuery Ajax实现下拉框无刷新联动

日期：2020-05-11 栏目：程序人生浏览：次
本文实例为大家分享了jQuery Ajax实现下拉框无刷新联动的具体代码，供大家参考，具体内容如下
HTML代码：
@{
  Layout = null;
}

@using DAL;
@using System.Data;

@{
  AreaDal areaDal = new AreaDal();
  string areaId = ViewBag.areaId;
  DataRow drArea = areaDal.GetArea(areaId);
  string countyId = drArea == null ? "-1" : drArea["countyId"].ToString();
  DataRow drCounty = areaDal.GetCounty(countyId);
  string cityId = drCounty == null ? "-1" : drCounty["cityId"].ToString();
  DataRow drCity = areaDal.GetCity(cityId);
  string provinceId = drCity == null ? "-1" : drCity["provinceId"].ToString();
}

<!DOCTYPE html>
<html>
<head>
  <title>商圈选择</title>
  <script type="text/javascript">
    //选中
    function select(selId, id, callback) {
      $("#" + selId).val(id);
      if (callback) callback();
    }

    //获取省列表
    function getProvinces(callback) {
      $.ajax({
        type: "POST",
        url: "@Url.Content("~/Backstage/Area/GetProvinces")",
        data: {},
        success: function (text) {
          $("#province").html(text);
          if (callback) callback();
        },
        error: function () {
        }
      });
    }

    //获取市列表
    function getCities(pid, callback) {
      $.ajax({
        type: "POST",
        url: "@Url.Content("~/Backstage/Area/GetCities")",
        data: { "provinceId": pid, },
        success: function (text) {
          $("#city").html(text);
          if (callback) callback();
        },
        error: function () {
        }
      });
    }

    //获取区县列表
    function getCounties(pid, callback) {
      $.ajax({
        type: "POST",
        url: "@Url.Content("~/Backstage/Area/GetCounties")",
        data: { "cityId": pid, },
        success: function (text) {
          $("#county").html(text);
          if (callback) callback();
        },
        error: function () {
        }
      });
    }

    //获取商圈列表
    function getAreas(pid, callback) {
      $.ajax({
        type: "POST",
        url: "@Url.Content("~/Backstage/Area/GetAreas")",
        data: { "countyId": pid, },
        success: function (text) {
          $("#area").html(text);
          if (callback) callback();
        },
        error: function () {
        }
      });
    }
  </script>
</head>
<body>
  <select id="province">
    <option value="-1">==请选择==</option>
  </select>
  <select id="city">
    <option value="-1">==请选择==</option>
  </select>
  <select id="county">
    <option value="-1">==请选择==</option>
  </select>
  <select id="area">
    <option value="-1">==请选择==</option>
  </select>
  <script type="text/javascript">
    //选择省
    $("#province").change(function () {
      var id = $(this).find("option:selected").val();
      getCities(id, function () {
        $("#city").change();
      });
    });

    //选择市
    $("#city").change(function () {
      var id = $(this).find("option:selected").val();
      getCounties(id, function () {
        $("#county").change();
      });
    });

    //选择区县
    $("#county").change(function () {
      var id = $(this).find("option:selected").val();
      getAreas(id, function () {
        $("#area").change();
      });
    });

    getProvinces(function () {
      select("province", '@provinceId', function () {
        getCities('@provinceId', function () {
          select("city", '@cityId', function () {
            getCounties('@cityId', function () {
              select("county", '@countyId', function () {
                getAreas('@countyId', function () {
                  select("area", '@areaId');
                });
              });
            });
          });
        });
      });
    });
  </script>
</body>
</html>
转载注明出处：http://www.heiqu.com/932.html
基于jQuery Ajax实现下拉框无刷新联动

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