我试图弄清楚如何检查所有4个输入是否都已填写,然后选中联系信息复选框。如果尚未填写,请取消选中该复选框。
任何帮助,将不胜感激。
$(document).on('change', '#ContactName, #ContactEmail, #ContactPhone', function() {
if ('#ContactName, #ContactEmail, #ContactPhone' === '') {
$("#contactinformation").prop("checked", false);
} else {
$("#contactinformation").prop("checked", true);
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.0/jquery.min.js"></script>
<div class="row">
<div class="col-lg-7">
<div class="form-group">
<label for="ContactName">Contact name:</label>
<input type="text" class="form-control input-sm" name="ContactName" id="ContactName" size="40" maxlength="120" value="" />
</div>
</div>
</div>
<div class="row">
<div class="col-lg-7">
<div class="form-group">
<label for="BusinessName">Business name:</label>
<input type="text" class="form-control input-sm" name="BusinessName" id="BusinessName" size="40" maxlength="120" value="" />
</div>
</div>
</div>
<div class="row">
<div class="col-lg-7">
<div class="form-group">
<label for="ContactEmail">Email address:</label>
<input type="text" class="form-control input-sm" name="ContactEmail" id="ContactEmail" size="40" maxlength="80" value="" />
</div>
</div>
</div>
<div class="row">
<div class="col-lg-7">
<div class="form-group">
<label for="ContactPhone">Phone number (business hours):</label>
<input type="text" class="form-control input-sm" name="ContactPhone" id="ContactPhone" size="40" maxlength="50" value="" />
</div>
</div>
</div>
<div class="row">
<div class="col-lg-12">
<div class="form-group">
<input type="checkbox" name="contactinformation" id="contactinformation" />
Contact information
</div>
</div>
</div>
答案 0 :(得分:2)
已更新答案,以反映新要求BusinessName
是可选的。
查看内联评论:
// Set up a blur event handler for each text field
$('.form-control:not("#BusinessName")').on("blur", function(evt) {
let count = 0; // Keep track of how many are filled in
// Loop over all the text fields
$('.form-control:not("#BusinessName")').each(function(idx, el){
// If the field is not empty....
if(el.value !== ""){
count++; // Increase the count
}
});
// Test to see if all 3 are filled in
if(count === 3){
$("#contactinformation").prop("checked", true); // Check the box
} else {
$("#contactinformation").prop("checked", false); // Unheck the box
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.0/jquery.min.js"></script>
<div class="row">
<div class="col-lg-7">
<div class="form-group">
<label for="ContactName">Contact name:</label>
<input type="text" class="form-control input-sm" name="ContactName" id="ContactName" size="40" maxlength="120" value="" />
</div>
</div>
</div>
<div class="row">
<div class="col-lg-7">
<div class="form-group">
<label for="BusinessName">Business name:</label>
<input type="text" class="form-control input-sm" name="BusinessName" id="BusinessName" size="40" maxlength="120" value="" />
</div>
</div>
</div>
<div class="row">
<div class="col-lg-7">
<div class="form-group">
<label for="ContactEmail">Email address:</label>
<input type="text" class="form-control input-sm" name="ContactEmail" id="ContactEmail" size="40" maxlength="80" value="" />
</div>
</div>
</div>
<div class="row">
<div class="col-lg-7">
<div class="form-group">
<label for="ContactPhone">Phone number (business hours):</label>
<input type="text" class="form-control input-sm" name="ContactPhone" id="ContactPhone" size="40" maxlength="50" value="" />
</div>
</div>
</div>
<div class="row">
<div class="col-lg-12">
<div class="form-group">
<input type="checkbox" name="contactinformation" id="contactinformation" disabled />
Contact information
</div>
</div>
</div>
答案 1 :(得分:2)
请尝试使用以下代码段。
<input type="text" class="form-control input-sm InputText" name="BusinessName" id="BusinessName" size="40" maxlength="120" value="" />
$( document ).ready(function() {
$(".InputText").change(function(){
var checkCheckBox= true;
$(".InputText").each(function() {
if ($.trim($(this).val()) != '') {
checkCheckBox = false;
}
});
if (checkCheckBox == true)
{
$("#contactinformation").prop("checked",true);
}
else
{
$("#contactinformation").prop("checked",false);
}
});
});
如果要验证此内容,请在文本框中添加“ InputText”类。