Bootstrap 4.0无效反馈未显示 [英] Bootstrap 4.0 invalid-feedback doesn't show

问题描述

我正在使用Bootstrap 4.0(非Beta版)验证，并且在显示无效反馈文本时遇到问题.

I am using the Bootstrap 4.0 (non-beta) validation and have a problem to display the invalid-feedback text.

<div class="form-row">
  <label class="form-control-label">Name:</label>
  <div class="col-4">
    <input class="form-control is-invalid" min="0" type="number"/>
  </div>
    <div class="col-4">
    <div class="invalid-feedback">
    Invalid Feedback Text
    </div>
  </div>
</div>

在上面的示例中，未显示无效反馈文本"文本.

In the above example the text "Invalid Feedback Text" is not displayed.

其原因是无效反馈div不是输入控件的直接同级.

The reason for it is that the invalid-feedback div is not a direct sibling of the the input control.

这一直是alpha/beta版本的问题，但是我给人的印象是，此问题已在4.0版本中修复. (至少相关的门票已关闭.)

This has been an issue with the alpha/beta versions however I was under the impression that this has been fixed in the 4.0 release. (At least the relevant ticket has been closed.)

因此，如果我不能将反馈文本作为相关输入控件的直接同级，该如何使用引导程序验证? (这在我的应用程序中根本不可行.)

So, how can I use the bootstrap validation if I can not have the feedback text as a direct sibling of the relevant input control? (It is simply not feasible in my application.)

这是一个小提琴: https://jsfiddle.net/zygrsrox/

推荐答案

您是对的，其目的是输入是反馈消息的同级.强制显示无效反馈的唯一方法是使用d-block之类的东西(或某些自定义CSS选择器).也许您可以在验证过程中以编程方式在应用中添加d-block.

You're right, the intention is that the input is a sibling of the feedback message. The only way you can force the invalid-feeback to show is to use something like d-block (or some custom CSS selector). Perhaps you can add d-block programatically in your app during validation.

<div class="form-row">
  <label class="form-control-label">Name:</label>
  <div class="col-4">
    <input class="form-control is-invalid" min="0" type="number"/>
  </div>
  <div class="col-4">
    <div class="invalid-feedback d-block">
    Invalid Feedback Text
    </div>
  </div>
</div>

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