我有一个学生表，每一行都是他们的名字，一个选择列表来选择他们的课程出勤率，然后单击“消息”链接时会弹出一个对话框，向学生发送消息。
该表由选定的课程列表动态驱动。例如，教师选择一门课程，然后表中会重新填充该课程中的所有学生。这是通过 AJAX 完成的。基本上每次选择课程时都会写入表格主体。我的问题是，当选择新课程时，对话框的 div 在消息链接的单元格内变得可见。我怀疑问题与 AJAX 有关，无法重新绑定链接和单击事件。那么我该如何克服这个问题呢？
这是我用 PHP 生成的表（http://pastebin.com/CTD3WfL6）：
public function createTable($cid)
{
$userModel = new Users();
$attendanceModel = new Attendance();
$students = $userModel->getStudents($cid);
$table2 = '<table id="tutorTable">';
$tableHeaders =
'<thead>
<th>Student Name</th>
<th>Attendance</th>
<th>Message</th>
<th>Mobile</th>
<th>Parent Name</th>
<th>Message</th>
</thead>
<tbody>';
$table2 .= $tableHeaders;
foreach($students as $student)
{
$table2 .=
'<tr><td id="studentName">'.$student['firstname'].' '.$student['lastname'].'</td>
<td>
<select class="attendSelect" id="studentSelect"'.$student['id'].'>
<option value="Attended">Attended</option>
<option value="Absent">Did not Attend</option>
<option value="Excused Absent">Excused</option>
<option value="Late">Excused</option>
<option value="Excused Late">Did not Attend</option>
</select>
</td>
<td>
<a href="#MessageStudent" class="popUpLink">Message</a>
<div class="popUpDialog" id="'.$student['id'].'" title="Message '.$student['firstname'].' '.$student['lastname'].'">
<form id="studentForm" action="" method="POST">
<fieldset>
<input type="hidden" value="message_send" name="action"/>
<input type="hidden" value="'.$student['id'].'" name="studentId"/>
<textarea rows="3" cols=35" name="message"></textarea>
<input type="submit" value="Send Message"/>
</fieldset>
</form>
</div>
</td>
<td>'.$student['phone1'].'</td>
<td>Parent name goes here</td>
<td>
<a href="mailto:[email protected] /cdn-cgi/l/email-protection" id="parentEmail">Message</a>
</td>
</tr>';
}
$table2 .= '</tbody></table>';
return $table2;
}
这是处理对话框和表格的 jQuery：
/** Dialog Handler **/
$('.popUpLink').each(function()
{
$divDialog = $(this).next('.popUpDialog');
$.data(this, 'dialog', $divDialog.dialog(
{
autoOpen: false,
modal: true,
title: $divDialog.attr('title')
}));
}).on('click',function()
{
$.data(this, 'dialog').dialog('open');
return false;
});
/**AJAX to handle table **/
$('#courseSelect').on('change', function()
{
var cid = $('#courseSelect').val();
$.getJSON('?ajax=true&cid=' + cid, function(data)
{
var lessonSelect = "";
var count = 1;
/** populate select list of lessons **/
for(var i in data.lessons)
{
lessonSelect += '<option id="' + count + '" value="' + data.lessons[i].id+ '">' + data.lessons[i].name + '</option>'
count++;
};
var lessonDialog = '<p>' + data.lessons[0].name + '</p>';
var launchLessonDiv = '<a href=" ' + data.launchLesson.reference + ' ">Launch Lesson</a>';
var courseDialog = '<p>' + data.course.fullname + '</p>';
$('#lessonSelect').html(lessonSelect);
$('#lessonDialog').html(lessonDialog);//insert lesson information into lesson dialog
$('#launchLessonDiv').html(launchLessonDiv);//insert link to launch lesson
$('#courseDialog').html(courseDialog);
/**Repopulate table **/
//var lessonCount = 1;
//var table = createTutorTable(data, cid, lessonCount);
//$('table#tutorTable>tbody').html(table);
$('form#tutorTableForm').html(data.table);
});//getJSON
});//Course select
一切工作正常，直到选择新课程并且文本区域在单元格内变得可见。我上个月才刚刚开始使用 jQuery，所以请耐心等待！
