这是我的html代码，请看看。 以下是我的js代码，请帮助我突出显示数据。 在这段代码中，我从xml文件中读取数据，然后使用js将其打印在网页上，然后我希望由用户获取选中的数据以在表格上高亮显示。
整个xml文件中客户的信息已经给出。
Html Code
<!DOCTYPE html>
<html>
<head>
<title>Client Rental</title>
<link rel="stylesheet" type="text/css" href="classdemo_2.css">
<script type="text/javascript"enter code here src="jsonfilehandler.js"></script>
</head>
<body>
<header><h1>Client Rental Information</h1> <img src="1.png">
</header>
<h2>Search the Client Below</h2>
<table>
<tr><td>Search By Last Name</td><td></td><td></td><td><input type="text" size="30" id="lastname"></td></tr>
</table>
<br>
<h3 id="searchvalue"></h3>
<br>
<table id="searchresults" ></table>
<form id="register" onsubmit="register();return false">
<table class="form">
<tr><td>Last Name</td><td><input type="text" id="lastname" size="15" pattern="[A-Za-z]{1,15}" required="true"></td></tr>
<tr><td>First Name</td><td><input type="text" id="firstname" size="15" pattern="[A-Za-z]{1,15}" required="true"></td></tr>
<tr><td>Address</td><td><input type="text" id="address" size="25" required="true"></td></tr>
<tr><td>Sate_province</td><td><input type="text" id="state" placeholder="state" size="15" required="true"></td></tr>
<tr><td>Email</td><td><input type="email" id="email" placeholder="example@example.com" size="20" required="true"></td></tr>
<tr><td>Phone Number</td><td><input type="phone" id="phone" placeholder="A1A1A1" size="15" required="true"></td></tr>
</table>
<input type="submit" value="Submit">
</form>
<footer class="footer">
Contact information
</footer>
</table>
</body>
</html>
Js Code:-
/*jsonfilehandler.js*/
var xhr = new XMLHttpRequest();
var r;
var index;
window.onload=loaddata;
function loaddata() {
//event listener
document.getElementById("lastname").addEventListener("keyup", function (){ searchFullName(this.value);},false);
xhr.onreadystatechange = function() {
if (xhr.readyState == 4 && xhr.status == 200) {
r = JSON.parse(xhr.responseText);
//displayData(r);
}
};
xhr.open("GET", "rentalclients.json", true);
xhr.send();
}
function searchFullName(name) {
//var r=JSON.parse(xhr.responseText);
var output=" ";
var searchname;
var displayRadiobuttons= "";
for(var i=0; i<r.length; i++)
{
var obj=r[i];
searchname=obj.last_name;
if(searchname.toLowerCase().startsWith(name))
{
obj=obj.last_name+"\t\t\t\t"+obj.first_name;
displayRadiobuttons+="<input type=radio name=listitem";
displayRadiobuttons += " value=" + i + " ";
displayRadiobuttons+= "onclick=if(this.checked) {setClientObject(searchname)}>";
displayRadiobuttons+=obj+ "<br>";
}
}
document.getElementById("searchresults").innerHTML=displayRadiobuttons;
//displayRadiobuttons= onclick=if(this.checked){setClientObject()};
}
function setClientObject(myname) {
var c=0;
alert(c);
index=i;
var dataitem;
var clientobject = {
lastname,
firstname,
address,
postalcode,
state,
email,
phone
};
var searchname;
for(var i=0; i<r.length; i++)
{
var obj=r[i];
searchname=obj.last_name;
if(searchname.toLowerCase().startsWith(name))
{
clientobject.lastname = document.getElementByTagName("last_name").value;
clientobject.firstname = document.getElementByTagName("first_name").value;
clientobject.address = document.getElementByTagName("address").value;
clientobject.postalcode = document.getElementByTagName("state_prov").value;
clientobject.email = document.getElementByTagName("email").value;
clientobject.phone = document.getElementByTagName("phone").value;
}
}
//input variables into clientobject
document.getElementById("lastname").value = clientobject.lastname;
document.getElementById("firstname").value = clientobject.firstname;
document.getElementById("address").value = clientobject.address;
document.getElementById("state").value = clientobject.state;
document.getElementById("email").value = clientobject.phone;
document.getElementById("phone").value = clientobject.state;
}```
答案 0 :(得分：0)
我重新格式化了代码，但我仍然不知道您要完成什么。
<html>
<!DOCTYPE html>
<html>
<head>
<title>Client Rental</title>
<link rel="stylesheet" type="text/css" href="classdemo_2.css">
<script type="text/javascript"enter code here src="jsonfilehandler.js"></script>
</head>
<body>
<header><h1>Client Rental Information</h1> <img src="1.png">
</header>
<h2>Search the Client Below</h2>
<table>
<tr><td>Search By Last Name</td><td></td><td></td><td><input type="text" size="30" id="lastname"></td></tr>
</table>
<br>
<h3 id="searchvalue"></h3>
<br>
<table id="searchresults" ></table>
<form id="register" onsubmit="register();return false">
<table class="form">
<tr><td>Last Name</td><td><input type="text" id="lastname" size="15" pattern="[A-Za-z]{1,15}" required="true"></td></tr>
<tr><td>First Name</td><td><input type="text" id="firstname" size="15" pattern="[A-Za-z]{1,15}" required="true"></td></tr>
<tr><td>Address</td><td><input type="text" id="address" size="25" required="true"></td></tr>
<tr><td>Sate_province</td><td><input type="text" id="state" placeholder="state" size="15" required="true"></td></tr>
<tr><td>Email</td><td><input type="email" id="email" placeholder="example@example.com" size="20" required="true"></td></tr>
<tr><td>Phone Number</td><td><input type="phone" id="phone" placeholder="A1A1A1" size="15" required="true"></td></tr>
</table>
<input type="submit" value="Submit">
</form>
<footer class="footer">
Contact information
</footer>
</table>
</body>
<script>
var xhr = new XMLHttpRequest();
var r;
var index;
window.onload=loaddata;
function loaddata() {
//event listener
document.getElementById("lastname").addEventListener("keyup", function (){ searchFullName(this.value);},false);
xhr.onreadystatechange = function() {
if (xhr.readyState == 4 && xhr.status == 200) {
r = JSON.parse(xhr.responseText);
//displayData(r);
}
};
xhr.open("GET", "rentalclients.json", true);
xhr.send();
}
function searchFullName(name) {
//var r=JSON.parse(xhr.responseText);
var output=" ";
var searchname;
var displayRadiobuttons= "";
for(var i=0; i<r.length; i++)
{
var obj=r[i];
searchname=obj.last_name;
if(searchname.toLowerCase().startsWith(name))
{
obj=obj.last_name+"\t\t\t\t"+obj.first_name;
displayRadiobuttons+="<input type=radio name=listitem";
displayRadiobuttons += " value=" + i + " ";
displayRadiobuttons+= "onclick=if(this.checked) {setClientObject(searchname)}>";
displayRadiobuttons+=obj+ "<br>";
}
}
document.getElementById("searchresults").innerHTML=displayRadiobuttons;
//displayRadiobuttons= onclick=if(this.checked){setClientObject()};
}
function setClientObject(myname) {
var c=0;
alert(c);
index=i;
var dataitem;
var clientobject = {
lastname,
firstname,
address,
postalcode,
state,
email,
phone
};
var searchname;
for(var i=0; i<r.length; i++)
{
var obj=r[i];
searchname=obj.last_name;
if(searchname.toLowerCase().startsWith(name))
{
clientobject.lastname = document.getElementByTagName("last_name").value;
clientobject.firstname = document.getElementByTagName("first_name").value;
clientobject.address = document.getElementByTagName("address").value;
clientobject.postalcode = document.getElementByTagName("state_prov").value;
clientobject.email = document.getElementByTagName("email").value;
clientobject.phone = document.getElementByTagName("phone").value;
}
}
//input variables into clientobject
document.getElementById("lastname").value = clientobject.lastname;
document.getElementById("firstname").value = clientobject.firstname;
document.getElementById("address").value = clientobject.address;
document.getElementById("state").value = clientobject.state;
document.getElementById("email").value = clientobject.phone;
document.getElementById("phone").value = clientobject.state;
}
</script>
</html>