这是主页:命名为'index.php'
<html>
<head>
<script src='jquery.min.js' ></script>
<script>
function showUser(str)
{
if (str=="")
{
document.getElementById("txtHint").innerHTML="No match found";
return;
}
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","getuser.php?q="+str,true);
xmlhttp.send();
}
function adduser()
{
var fname=document.getElementsByName("fname")[0].value;
var lname=document.getElementsByName("lname")[0].value;
var age=document.getElementsByName("age")[0].value;
var ht=document.getElementsByName("ht")[0].value;
var job=document.getElementsByName("job")[0].value;
var xmlhttp;
if (window.XMLHttpRequest)
{
xmlhttp=new XMLHttpRequest();
}
else
{
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","adduser.php
q="+fname+"&w="+lname+"&e="+age+"&r="+ht+"&t="+job,true);
xmlhttp.send();
}
$(document).ready(function(){
$("#hidelist").click(function(){
$("#list").hide("fast");
return false;
});
});
</script>
</head>
<body>
<button type='button' onclick='showUser(this.value)' id='getdata' value='1' >get data</button>
<div id="txtHint"><b>Person info will be listed here.</b></div>
</body>
</html>
这是单击id ='getdata'的按钮时的页面。命名为'getuser.php'
<?php
error_reporting(0);
$q = intval($_GET['q']);
$con = mysqli_connect('localhost','root','rathena','ajax_demo');
if (!$con)
{
die('Could not connect: ' . mysqli_error($con));
}
mysqli_select_db($con,"ajax_demo");
$sql="SELECT * FROM user";
$result = mysqli_query($con,$sql);
echo "<div id='list' ><table border='1' style='margin-top: 0px;' >
<tr>
<th>Firstname</th>
<th>Lastname</th>
<th>Age</th>
<th>Hometown</th>
<th>Job</th>
</tr>";
while($row = mysqli_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row['FirstName'] . "</td>";
echo "<td>" . $row['LastName'] . "</td>";
echo "<td>" . $row['Age'] . "</td>";
echo "<td>" . $row['Hometown'] . "</td>";
echo "<td>" . $row['Job'] . "</td>";
echo "</tr>";
}
echo "</table></div>";
echo "<input type='text' name='fname' value='Firstname' /><br />";
echo "<input type='text' name='lname' value='Lastname' /><br />";
echo "<input type='text' name='age' value='Age' /><br />";
echo "<input type='text' name='ht' value='Hometown' /><br />";
echo "<input type='text' name='job' value='Job' /><br />";
echo "<button style='display: non;' type='button' onclick='adduser()' >add user data</button>";
echo "<button style='display: non;' type='button' id='hidelist' >hide list</button>";
mysqli_close($con);
?>
但是,我想要实现的是,每当我点击id ='hidelist'的按钮时,用id ='list'隐藏div。但是jQuery代码没有抓住我检索到的页面的按钮ID。在这一行:
$(document).ready(function(){
$("#hidelist").click(function(){
$("#list").hide("fast");
return false;
});
});
我很欣赏有关此问题的任何想法。谢谢:))
答案 0 :(得分:4)
您必须将事件委托给最近的非动态父元素,因为附加事件处理程序时#hidelist
元素不存在:
$(document).ready(function(){
$('#txtHint').on('click', '#hidelist', function(){
$("#list").hide("fast");
});
});