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[英]How to Select an option on change event and trigger the other select option to respond?
[英]Trigger event on select option in select input
我在选择输入上触发事件时遇到问题。 选择“另一个”选项时,我需要显示输入类型文本。 这是代码:
HTML:
<div class="form-group">
<label class="control-label" for="affiliation">Occupation:</label>
<select name="affiliation" id="affiliation" class="form-control required>
<option value="Choose" selected>Choose</option>
<option value="valueA">Student</option>
<option value="valueB">Lecturer</option>
<option value="valueC">Scientist</option>
<option value="Another">Another</option>
</select>
</div>
<div class="form-group hide">
<input type="text" name="anotherV" id="anotherV" class="form-control" placeholder="Plese enter your occupation" required>
</div>
CSS:
.hide {display: none;}
我使用引导程序
在您的选择中的form-control
之后,您的 HTML 中缺少结束双引号。 下面是固定的,并且在隐藏输入字段的父 div 中添加了一个 ID,以使代码更容易理解,如果您觉得舒服,可以随意更改。
HTML
<div class="form-group">
<label class="control-label" for="affiliation">Occupation:</label>
<select name="affiliation" id="affiliation" class="form-control" required>
<option value="Choose" selected>Choose</option>
<option value="valueA">Student</option>
<option value="valueB">Lecturer</option>
<option value="valueC">Scientist</option>
<option value="Another">Another</option>
</select>
</div>
<div class="form-group hide" id="hiddenInputContainer">
<input type="text" name="anotherV" id="anotherV" class="form-control" placeholder="Plese enter your occupation" required>
</div>
jQuery
$( "#affiliation" ).change(function(event) {
if ($(this).val() === "Another") {
$('#hiddenInputContainer').toggleClass('hide');
}
});
$("#affiliation").change(function() {
if (this.value === "Another") $(".hide input").show()
else $(".hide input").hide()
})
您可以将change()
事件处理程序与toggleClass()
change()
处理更改事件parent()
用于选择元素的父级toggleClass()
带有用于切换类hide
标志演示:
$('#affiliation').change(function() { $('#anotherV').parent().toggleClass('hide', this.value != 'Another'); });
.hide { display: none; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <div class="form-group"> <label class="control-label" for="affiliation">Occupation:</label> <select name="affiliation" id="affiliation" class="form-control required"> <option value="Choose" selected>Choose</option> <option value="valueA">Student</option> <option value="valueB">Lecturer</option> <option value="valueC">Scientist</option> <option value="Another">Another</option> </select> </div> <div class="form-group hide"> <input type="text" name="anotherV" id="anotherV" class="form-control" placeholder="Plese enter your occupation" required> </div>
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