如何将输入按钮链接到文件选择窗口? [英] How to link an input button to a file select window?

问题描述

可能重复:
jQuery触发文件输入

我正在研究一种允许用户将图像上传到网站的表格.到目前为止，我有一个可在Chrome和Safari中运行的拖放解决方案.但是，我还需要支持用户单击按钮并以传统方式浏览文件的操作.

类似于此操作:

<input type="file" name="my_file">

但是，与其使用笨拙的文件描述区域和无法编辑的浏览"按钮，我不如使用以下内容:

<input type="button" id="get_file">

因此，我的问题是如何使此按钮打开文件选择窗口并以与type="file"相同的方式处理选择?

干杯.

---

我的解决方案

HTML:

<input type="button" id="my-button" value="Select Files">
<input type="file" name="my_file" id="my-file">

CSS:

#my-file { visibility: hidden; }

jQuery:

$('#my-button').click(function(){
    $('#my-file').click();
});

到目前为止，可以在Chrome，Firefox和IE7 +中使用(尚未尝试使用IE6).

解决方案

单击按钮输入后，您可以使用JavaScript并触发隐藏文件输入.

http://jsfiddle.net/gregorypratt/dhyzV/-简单

http://jsfiddle.net/gregorypratt/dhyzV/1/-有点JQuery的爱好者

或者，您可以直接在文件输入上设置div样式，并将CSS中的pointer-events设置为none，以使单击事件传递到花式div后面的文件输入.不过，这仅在某些浏览器中有效； http://caniuse.com/pointer-events

Possible Duplicate:
Jquery trigger file input

I'm working on a form which allows users to upload images to a website. So far I have got a drag and drop solution working in Chrome and Safari. However I also need to support the action of users clicking a button and browsing for files in the traditional manner.

Similar to what this would do:

<input type="file" name="my_file">

However rather than having the clunky file description area and un-editable Browse button I would rather use something like this:

<input type="button" id="get_file">

My question therefore is how to I make this button open a file selection window and process the selection the same way that type="file" would work?

Cheers.

---

My Solution

HTML:

<input type="button" id="my-button" value="Select Files">
<input type="file" name="my_file" id="my-file">

CSS:

#my-file { visibility: hidden; }

jQuery:

$('#my-button').click(function(){
    $('#my-file').click();
});

Working in Chrome, Firefox, and IE7+ so far (haven't tried IE6).

解决方案

You could use JavaScript and trigger the hidden file input when the button input has been clicked.

http://jsfiddle.net/gregorypratt/dhyzV/ - simple

http://jsfiddle.net/gregorypratt/dhyzV/1/ - fancier with a little JQuery

Or, you could style a div directly over the file input and set pointer-events in CSS to none to allow the click events to pass through to the file input that is "behind" the fancy div. This only works in certain browsers though; http://caniuse.com/pointer-events

这篇关于如何将输入按钮链接到文件选择窗口?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！