jQuery:.focus()整个表单上的事件?如何? [英] JQuery: .focus() event on whole form? How to?
问题描述
< form ....>
< textarea> ....< / textarea
< input .... />
< / form>
现在我想在用户关注任何表单元素时显示帮助部分。当焦点消失时,帮助信息也应该。
我的想法是这样的:
$ $ $ $ $ $ $ $ $ $(form) .focus(函数(){...});
$(form)。unfocus(function(){...});
但似乎并不奏效。有任何想法吗?谢谢你的帮助!
$ b另外:
谢谢大家,有用。我使用了lonesomeday的解决方案,但是我的动画还有另外一个问题:
$ b $ $ $('form')。delegate(':input ','focus',function(){
$ b $(#eintrag)。animate({height:160px},500)
$ ).animate({height:200px},500)
$(#container)。animate({margin-top:240px},500) .show)。animate({opacity:0},500)
$(。hide)。animate({opacity:1},500) $(#header_links> p)。animate({opacity:0},500)
})。
$ b $(#eintrag)。animate({height:20px},500)
$(。show)。animate({opacity: 1},500)
$(#container)。animate({margin-top:150px},500)
$(。hide)。animate({ opacity:0},500)
$(#header_links> p)。animate({opacity:1},500)
$(#header)。 animate({height:110px},500)
});
这意味着我每次在窗体中改变焦点时都会获得动画。如何改变这个?
嗯,我只是找到所有的输入元素, b
$ b
$(function(){
$('#form_id').find('input')。focus(function(){
$ b $ //你的函数
$ b});
$('#form_id').find('input')。blur(function ){
//你的函数
});
});
consider the following HTML:
<form ....>
<textarea>....</textarea
<input .... />
</form>
Now I want to show a help section when the user is focused on ANY of the form elements. When the focus is gone the help information should too.
My idea was this:
$("form").focus(function(){...});
$("form").unfocus(function(){...});
But it doesn't seem to work. Any ideas? Thanks a lot for your help!
Tom
Addition: Thank you all a lot, it works. I used lonesomeday's solution, but there is another problem with my animations:
$('form').delegate(':input', 'focus', function() {
$("#eintrag").animate({"height": "160px"}, 500)
$("#header").animate({"height": "200px"}, 500)
$("#container").animate({"margin-top": "240px"}, 500)
$(".show").animate({"opacity": "0"}, 500)
$(".hide").animate({"opacity": "1"}, 500)
$("#header_links>p").animate({"opacity": "0"}, 500)
}).delegate(':input', 'blur', function() {
$("#eintrag").animate({"height": "20px"}, 500)
$(".show").animate({"opacity": "1"}, 500)
$("#container").animate({"margin-top": "150px"}, 500)
$(".hide").animate({"opacity": "0"}, 500)
$("#header_links>p").animate({"opacity": "1"}, 500)
$("#header").animate({"height": "110px"}, 500)
});
This means that I get the animation each time I change focus within the form. How do I change this?
Hmmm I would just find all the input elements and bind against them e.g.
$(function() {
$( '#form_id' ).find('input').focus(function() {
//your function
});
$( '#form_id' ).find('input').blur(function() {
//your function
});
});
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