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  • jquery 三级联动

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>列表框中事件应用</title>
        <script type="text/javascript" 
                src="Jscript/jquery-1.8.2.min.js">
        </script>
        <style type="text/css">
               body{font-size:13px}
               .clsInit{width:435px;height:35px;line-height:35px;padding-left:10px} 
               .clsTip{padding-top:5px;background-color:#eee;display:none} 
               .btn {border:#666 1px solid;padding:2px;width:65px;float:right;margin-top:6px;margin-right:6px;
               filter: progid:DXImageTransform.Microsoft.Gradient(GradientType=0,StartColorStr=#ffffff, EndColorStr=#ECE9D8);}
        </style> 
      <script type="text/javascript">
          $(function() {
              function objInit(obj) {//下拉列表框初始化
                  return $(obj).html("<option>请选择</option>");
              }
              var arrData = { //定义一个数组保存相关数据
                  厂商1: { 品牌1_1: "型号1_1_1,型号1_1_2", 品牌1_2: "型号1_2_1,型号1_2_2" },
                  厂商2: { 品牌2_1: "型号2_1_1,型号2_1_2", 品牌2_2: "型号2_2_1,型号2_2_2" },
                  厂商3: { 品牌3_1: "型号3_1_1,型号3_1_2", 品牌3_2: "型号3_2_1,型号3_2_2" }
              };
    
              $.each(arrData, function(pF) { //遍历数据增加厂商项
                  $("#selF").append("<option>" + pF + "</option>");
              });
    
              $("#selF").change(function() { //厂商列表框选项改变事件
                  objInit("#selT");
                  objInit("#selC");
    
                  $.each(arrData, function(pF, pS) {
                      if ($("#selF option:selected").text() == pF) { //如果厂商选中项与数据匹配
    
                          $.each(pS, function(pT, pC) { //遍历数据增加品牌项
                              $("#selT").append("<option>" + pT + "</option>");
                          });
    
                          $("#selT").change(function() { //品牌列表框选项改变事件
                              objInit("#selC");
                              $.each(pS, function(pT, pC) {
    
                                  if ($("#selT option:selected").text() == pT) { //如果品牌选中项与数据匹配
    
                                      $.each(pC.split(","), function() { //遍历数据增加型号项
                                          $("#selC").append("<option>" + this + "</option>");
                                      });
                                  }
                              });
                          });
    
                      }
                  });
              });
    
              $("#Button1").click(function() { //注册按钮单击事件
                  var strValue = "您选择的厂商:";
                  strValue += $("#selF option:selected").text();
                  strValue += "&nbsp;您选择的品牌:";
                  strValue += $("#selT option:selected").text();
                  strValue += "&nbsp;您选择的型号:";
                  strValue += $("#selC option:selected").text();
                  $("#divTip")
                  .show()
                  .addClass("clsTip")
                  .html(strValue); //显示提示信息并增加样式
              });
          })
           </script> 
    </head>
    <body>
         <div class="clsInit">
           厂商:<select id="selF"><option>请选择</option></select>  
           品牌:<select id="selT"><option>请选择</option></select>  
           型号:<select id="selC"><option>请选择</option></select> 
           <input id="Button1" type="button" value="查询" class="btn" />
        </div> 
        <div class="clsInit" id="divTip"></div>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/yuanjun1/p/4185151.html
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