为实现根据厂商、名牌、型号查询车型的功能,在页面中,设置三个下拉表框,分别用于保存厂商、名牌、型号的数据。当用户在选择厂商时,名牌和型号下拉列表框随其数据变化而变化;当用户选择名牌时候型号下拉列表随其所选数据变化而变化,从而实现了三个下拉列表框联动展示数据的功能。单击“查询”按钮时,显示用户所选择的全部选项。
<!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-1.4.2-vsdoc.js">
</script>
<script type="text/javascript"
src="Jscript/jquery-1.4.2.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) {
return $(obj).html("<option>请选择</option>");
}
var arrData = {
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) {
$("#selF").append("<option>" + pF + "</option>");
});
$("#selF").change(function() {
objInit("#selT");
objInit("#selC");
$.each(arrData, function(pF, pS) {
if ($("#selF option:selected").text() == pF) {
$.each(pS, function(pT, pC) {
$("#selT").append("<option>" + pT + "</option>");
});
$("#selT").change(function() {
objInit("#selC");
$.each(pS, function(pT, pC) {
if ($("#selT option:selected").text() == pT) {
$.each(pC.split(","), function() {
$("#selC").append("<option>" + this + "</option>");
});
}
});
});
}
});
});
$("#Button1").click(function() {
var strValue = "您选择的厂商:";
strValue += $("#selF option:selected").text();
strValue += " 您选择的品牌:";
strValue += $("#selT option:selected").text();
strValue += " 您选择的型号:";
strValue += $("#selC option:selected").text();
$("#divTip")
.show()
.addClass("clsTip")
.html(strValue);
});
})
</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>