使用jquery / ajax在单击链接时发送/更新div

I have 2 layers that i need to update individually if a user clicks on either of them.

我有2层，如果用户点击其中任何一个，我需要单独更新。

<div id=wrapper>
    <div id=upvote>
        //This div can be filled by upvote.php?id=X
        <? echo getUpVote(); ?>
        <a href=#><img src=upv.png></a>
    </div>
    <div id=downvote>
        //This div can be filled by downvote.php?id=X
        <? echo getdownVote(); ?>
        <a href=#><img src=downv.png></a>
    </div>
</div>

When the user clicks the up or down vote image, i need to fade out the contents of the div, make an ajax call to the respective php file (get request), and fade in the loaded content.

当用户点击向上或向下投票图像时，我需要淡出div的内容，对相应的php文件（获取请求）进行ajax调用，并淡入加载的内容。

How can i do this?

我怎样才能做到这一点？

3 个解决方案

#1

Attach a click handler to the anchor tags. Find which url to use given the id of the containing div, then invoke load to replace the contents of the wrapper. Fade out/in at the appropriate points. Make sure that you return false from the anchor click handler to cancel the default action.

将单击处理程序附加到锚标记。给定包含div的id的url，然后调用load来替换包装器的内容。在适当的点淡出/淡出。确保从锚点击处理程序返回false以取消默认操作。

$('#upvote,#downvote').find('a').click( function() {
    var url  = $(this).closest('div').attr('id') + '.php?id=X';
    $('#wrapper').fadeOut();
                 .load( url, function() {
                     $('#wrapper').fadeIn();
                 });
    return false; // cancel click action
});

#2

To add a click handler to an element in jQuery you can do this:

要在jQuery中为元素添加单击处理程序，您可以执行以下操作：

 $("#upvote").click(clickHandler);

Where clickHandler is a function. Since you want to fade Out an image you can do this:

clickHandler是一个函数。由于您想要淡出图像，您可以这样做：

 $("#upimg").hide('slow');

will cause an element with id='upimg' to disappear slowly. You can also use fadeTo(opacity) to achieve a similar effect.

会导致id ='upimg'的元素慢慢消失。您还可以使用fadeTo（不透明度）来实现类似的效果。

The AJAX call can be made with a call to load.

可以通过调用load来进行AJAX调用。

$('#div').load('url', {}, callback);

where an element with id='div' will be populated with the result of calling url, the {} is optional and callback is a function that you can include to execute after the load. The callback function may be used to fadeIn the new content.

其中id ='div'的元素将填充调用url的结果，{}是可选的，回调是一个可以包含在加载后执行的函数。回调函数可用于淡入新内容。

 var clickHandler = function(){
    $("#upimg").hide('slow');

    $('#div').load('url', {}, callback);

 }

 var callback = function(){
    $('#div').show('slow');
 }

#3

AJAX request can be made with $.get and you can fade the DIV using jQuery's animation functions like fadeOut

可以使用$ .get进行AJAX请求，你可以使用jQuery的动画函数fadeOut淡化DIV

Here is some code on how you might acchive what you want:

以下是一些关于如何实现所需内容的代码：

$( '#IdOfOneAnchor' ).click ( function () {
    var myDiv = $( '#IdOfYourDiv' );
    myDiv.fadeOut ();
    $.get (
        'url/to/your/script.php',
        {
            // put params you need here
        },
        function ( response ) {
            myDiv.html ( response ).fadeIn ();
        }
    );

    return false;
} );

off course you will have to change the selectors to match your DIVs/links ...

当然，您必须更改选择器以匹配您的DIV /链接...

#1

$('#upvote,#downvote').find('a').click( function() {
    var url  = $(this).closest('div').attr('id') + '.php?id=X';
    $('#wrapper').fadeOut();
                 .load( url, function() {
                     $('#wrapper').fadeIn();
                 });
    return false; // cancel click action
});

#2