Question

我有一个页面可以验证，并且在该字段旁边显示相关的验证消息。

我希望页面滚动到第一次验证失败的页面部分用户单击“保存”按钮时会显示该消息

主题是我想滚动到具有row-validate的类visibility:visible的元素。

<div class="row form-inputs">
    <div class="col-12">
        <label>Full Name *</label>
        <input name="txtFirstName" type="text" id="txtFirstName" class="form-control">
        <span id="rfFN" class="row-validate" style="visibility:hidden;">Mandatory field</span>
    </div>
</div>

<div class="row form-inputs">
    <div class="col-12">
        <label>Email *</label>
        <input name="txtEmail" type="text" id="txtEmail" class="form-control">
        <span id="rfvEmail" class="row-validate" style="visibility: visible;">Mandatory field</span>
        <span id="revEmail" class="row-validate" style="visibility:hidden;">Invalid email address</span>
    </div>
</div>

<div class="row form-inputs">
    <div class="col-12">
        <label>Mobile *</label>
        <input name="txtPhone" type="text" value="05" id="txtPhone" class="form-control" placeholder="0501234567">
        <span id="rfvphone" class="row-validate" style="visibility:hidden;">Mandatory field</span>
        <span id="revPhone" class="row-validate" style="visibility: visible;">! Enter correct mobile number </span>
    </div>
</div>

<div class="row form-inputs">
    <div class="col-12">
        <label>Company </label>
        <input name="txtCompany" type="text" id="txtCompany" class="form-control">
    </div>
</div>

jQuery

下面的代码会将我滚动到具有类row-validate的第一个元素，但不会检查它是否具有visibility:visible或visible的{{1}}可见性属性

hidden

Answer 1

尝试一下，

$(".row-validate:visible").offset().top

编辑：

$("#button").click(function() {
let visible = $('.row-validate').filter(function() {
    return !($(this).css('visibility') == 'hidden' || 
         $(this).css('display') == 'none');
   });

   $([document.documentElement, document.body]).animate({
        scrollTop: visible[0].offsetParent.offsetTop 
   }, 2000);
 });

或者只是

$("#button").click(function() {
  $([document.documentElement, document.body]).animate({
     scrollTop: $('.row-validate:visible[style="visibility:visible;"]').parent().offset().top
  }, 200);
});

这将滚动到作为元素子级的父元素，以显示标签，输入字段和错误消息。不仅是错误消息。

Answer 2

如何使用属性选择器？

这不是仅针对您的情况的最佳解决方法。

$("#button").click(function() {
  $([document.documentElement, document.body]).animate({
    scrollTop: $('.row-validate:visible[style="visibility: visible;"]').offset().top
  }, 200);
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="row form-inputs">
  <div class="col-12">
    <label>Full Name *</label>
    <input name="txtFirstName" type="text" id="txtFirstName" class="form-control">
    <span id="rfFN" class="row-validate" style="visibility:hidden;">Mandatory field</span>
  </div>
</div>

<div class="row form-inputs">
  <div class="col-12">
    <label>Email *</label>
    <input name="txtEmail" type="text" id="txtEmail" class="form-control">
    <span id="rfvEmail" class="row-validate" style="visibility: visible;">Mandatory field</span>
    <span id="revEmail" class="row-validate" style="visibility:hidden;">Invalid email address</span>
  </div>
</div>

<div class="row form-inputs">
  <div class="col-12">
    <label>Mobile *</label>
    <input name="txtPhone" type="text" value="05" id="txtPhone" class="form-control" placeholder="0501234567">
    <span id="rfvphone" class="row-validate" style="visibility:hidden;">Mandatory field</span>
    <span id="revPhone" class="row-validate" style="visibility: visible;">! Enter correct mobile number </span>
  </div>
</div>

<div class="row form-inputs">
  <div class="col-12">
    <label>Company </label>
    <input name="txtCompany" type="text" id="txtCompany" class="form-control">
  </div>
</div>

<button id="button" style="margin-bottom:5000px;">Button</button>

滚动到显示首次验证失败消息的页面部分

2 个答案: