Question

我有一个带有高级选项的表单。高级选项位于div（隐藏）中。当“搜索”输入框被键入时，我想使用slidedown取消隐藏div。这是代码（部分来自其他来源：jQuery slideDown with forms）：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
    <script src="http://code.jquery.com/jquery-1.9.1.js"></script>
    <script src="http://api.jquery.com/resources/events.js"></script>
    <script type="text/javascript">
$("#searched").keypress(function(event) {
  if ( event.which == 13 ) {
     event.preventDefault();
   }
        $("#advanced").slideDown();

});
    </script>
</head>
<body>

<div id="content">
<form action="mycontrolleraddress" method="post" accept-charset="utf-8" name="search_form" id="search_form">

<input type="text" name="query" value="" placeholder="Search..." id="searched"/><br/>

<div id="advanced" style="display: none;">
    From: <input type="text" name="date_from" value="" id="datepicker" onchange="validateDate();" class="datefield"  /><br/>
    To: <input type="text" name="date_to" value="" id="datepicker2" onchange="validateDate();" class="datefield"  /> <br/>
</div>
<input type="submit" name="submit" value="Submit"  />

</div>

</body>
</html>

Answer 1

将您的代码包含在$(document).ready(function(){});

中

Answer 2

在$(function() {});或$(document).ready(function() {});

内使用

<script type="text/javascript">
    $(function() {
$("#searched").keypress(function(event) {
  if ( event.which == 13 ) {
     event.preventDefault();
   }
        $("#advanced").slideDown();

});
});
    </script>

Answer 3

$('#search_form').on('focus', '#searched', function(e){
    $('#advanced').slideDown();
})

Answer 4

解决方案是将你的javascript代码包装在其中：

$(document).ready(function(){
    // your code
});

KeyPress上的JQuery SlideDown

4 个答案: