我想获取被点击的元素的父 ID，因此在本例中为 #logo200_60_form 或 #logo400_120_form。然后我可以在其余代码中使用该 id。
我试过 $(this).parent() 但这给了我直接父级，我需要上升几个级别。因为id在
单击处理程序有一种方法可以确定哪个父项引起了单击。
JS :
$('#logo200_60_form a.fileinput-exists, #logo400_120_form a.fileinput- exists').on('click', function() {
$('form').get(0).reset();
$('#logo200_60').trigger('change');
$('#logo200_60_thumb').attr('src', 'http://www.placehold.it/200x150/EFEFEF/AAAAAA&text=no+image');
});
HTML :
<form action="#" role="form" id="logo200_60_form">
<p>Please upload 200x60 png logo image</p>
<div class="form-group">
<div class="fileinput fileinput-new" data-provides="fileinput">
<div class="fileinput-new thumbnail" style="width: 200px; height: 60px;">
<img id="logo200_60_thumb" src="http://www.placehold.it/200x150/EFEFEF/AAAAAA&text=no+image" alt="" />
</div>
<div id="logo200_60_preview" class="fileinput-preview fileinput-exists thumbnail" style="max-width: 200px; max-height: 60px;"></div>
<div>
<span class="btn default btn-file">
<span class="fileinput-new"> Select image </span>
<span class="fileinput-exists"> Change </span>
<input type="file" name="..." id="logo200_60">
</span>
<a href="#" class="btn default fileinput-exists" data-dismiss="fileinput"> Remove </a>
</div>
</div>
</div>
</form>
<form action="#" role="form" id="logo400_120_form">
<p>Please upload 400x120 png logo image</p>
<div class="form-group">
<div class="fileinput fileinput-new" data-provides="fileinput">
<div class="fileinput-new thumbnail" style="width: 400px; height: 120px;">
<img id="logo400_120_thumb" src="http://www.placehold.it/200x150/EFEFEF/AAAAAA&text=no+image" alt="" />
</div>
<div id="preview" class="fileinput-preview fileinput-exists thumbnail" style="max-width: 400px; max-height: 120px;"></div>
<div>
<span class="btn default btn-file">
<span class="fileinput-new"> Select image </span>
<span class="fileinput-exists"> Change </span>
<input type="file" name="..." id="logo400_120">
</span>
<a href="#" class="btn default fileinput-exists" data-dismiss="fileinput"> Remove </a>
</div>
</div>
</div>
</form>
最佳答案
使用 closest() <罢工>与attribute-value selector .
$(this) // The element that is clicked
.closest('form') // First <form> ancestor
.attr('id') // Get the value of `id` attribute
关于javascript - 在 jQuery 单击处理程序中获取选择器父 ID，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/34961385/