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社区首页 >问答首页 >选中相应复选框的输入字段。

问选中相应复选框的输入字段。
EN

Stack Overflow用户
提问于 2022-06-20 13:20:15
回答 3查看 99关注 0票数 3

我正在做一个表单，我只从一组复选框中选择一个复选框。我想使输入字段需要其相应的复选框被选中。

在这里，我只能选择一个复选框并使其相应的文本字段成为必需的。我想，如果我选择第n复选框，那么第n输入字段将强制填写。

​

代码语言：javascript
复制
$(document).ready(function() {
  $('.check').click(function() {
    let name = $(this).attr("name")
    if ($(this).prop('checked')) {
      $('.check[name="' + name + '"]').prop('required', false)
    } else {
      $('.check[name="' + name + '"]').prop('required', true)
    }
    $('.check[name="' + name + '"]').not(this).prop('checked', false)
  });
});
代码语言：javascript
复制
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div class="row">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" id="OVD" name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">A. Passport Number</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="form-control border-0">
  </div>
</div>
<div class="row">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" id="OVD" name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">B. Voter ID Card</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="form-control border-0">
  </div>
</div>
<div class="row">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" id="OVD" name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">C. Driving Licence</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="form-control border-0">
  </div>
</div>
<div class="row">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" id="OVD" name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">D. NREGA Job Card</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="form-control border-0">
  </div>
</div>
<div class="row">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" id="OVD" name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">E. National Population Register Letter</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="form-control border-0">
  </div>
</div>
<div class="row">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" id="OVD" name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">F. Proof of Possession on Aadhaar</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="form-control border-0">
  </div>
</div>

​

html
jquery
EN

回答 3

Stack Overflow用户

发布于 2022-06-20 14:18:08

DOM遍历通常比操作名称更简单。在这里，我们可以找到同一行中的第一个文本输入。

​

代码语言：javascript
复制
$(document).ready(function() {
  $('.check').click(function() {
    const textInput = $(this).closest('.row').find('input[type="text"]').first()

    if ($(this).prop('checked')) {
      textInput.prop('required', false)
    } else {
      textInput.prop('required', true)
    }

    $('.check[name="' + name + '"]').not(this).prop('checked', false)
  });
});
代码语言：javascript
复制
[type="text"][required] {
  background: pink !important;
}
代码语言：javascript
复制
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div class="row">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" id="OVD" name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">A. Passport Number</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="form-control border-0">
  </div>
</div>
<div class="row">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" id="OVD" name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">B. Voter ID Card</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="form-control border-0">
  </div>
</div>
<div class="row">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" id="OVD" name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">C. Driving Licence</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="form-control border-0">
  </div>
</div>
<div class="row">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" id="OVD" name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">D. NREGA Job Card</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="form-control border-0">
  </div>
</div>
<div class="row">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" id="OVD" name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">E. National Population Register Letter</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="form-control border-0">
  </div>
</div>
<div class="row">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" id="OVD" name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">F. Proof of Possession on Aadhaar</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="form-control border-0">
  </div>
</div>

​

票数 1
EN

Stack Overflow用户

发布于 2022-06-20 14:33:47

类似于伊舍伍德的回答--当我把它粘贴进去时，我有几乎相同的代码，但他更快。

然而，我会做一些不同的事情:当您第一次检测到单击复选框时，取消选中所有其他复选框(使复选框像单选按钮一样工作)，还可以伪造相关输入字段的所有required属性--这允许用户改变主意并选择不同的复选框。

如果您给每个“相关联的输入字段”提供一个特殊的类(如.chkAssoc )，则此任务的代码会更简单一些。

代码语言：javascript
复制
$(document).ready(function() {
    $('.check').click(function() {
        //uncheck all checkboxes, then re-check only this one
        $('.check').each(function(){
            $(this).prop('checked') = false;
        });
        $(this).prop('checked') = true;

        //reset all associated inputs to Not Required
        $('.chkAssoc').each(function(){
            $(this).prop('required', false);
        });
        //set the correct associated input as required
        if ($(this).prop('checked')) {
            const assocInput = $(this).closest('div.row').find('input[type=text]');
            assocInput.prop('required', true);
        }
    });
}); //end document.ready
票数 0
EN

Stack Overflow用户

发布于 2022-06-20 15:55:05

为了说明我的观点，这比严格需要的要详细一些。

id="OVD"

  • I添加了一些类，以帮助说明输入组的作用域和与之相关的“目标”，并将其设置为给定请求的“必需”。
  • 是无效的。我添加引导仅仅是为了一个视觉效果，因为你似乎在使用它，所以
  • 你可能会有不止一个“组”，所以这里我创建了一个“奶酪”组--也是
  • --我使用了一些数据属性作为切换，并过滤了
  • ，我添加了一个“绿色”背景来显示活动组作为一个指示符，这样您就可以看到"OVD“和”乳酪“work
  • ，我添加了一个视觉元素来显示我们上次单击的

F 214。

​

代码语言：javascript
复制
$(function() {
  $('.check').on('click', function() {
    const name = $(this).data("targetName");
    // set all to not required
    const targets = $('.input-block');
    const targetsInScope = targets
      .filter(function() {
        return $(this).has('.check[data-target-name="' + name + '"]').length == 1;
      });
    const isChecked = this.checked;
    this.required = isChecked;
    // set all to not required if this one is checked, otherwise make them all required
    targetsInScope.find('.target-input').prop('required', isChecked);
    targetsInScope.find('.check.form-check-input').prop('required', isChecked);
    //remove the background - just for an indicator on all of them
    targetsInScope.each(function() {
      this.dataset.activeBlock = "";
    });

    targetsInScope.find('.check[data-target-name="' + name + '"]')
      .not(this).prop('checked', false);
    const block = $(this).closest('.input-block');
    // just to show what we have in scope
    $('.currently-active')
      .text(name + ":" + isChecked + ":" + block.find('.d-inline').text());
    block.find('.target-input').prop('required', isChecked);
    block.get(0).dataset.activeBlock = isChecked ? "active" : "";
  });
});
代码语言：javascript
复制
.input-block[data-active-block="active"] {
  background-color: #ddffdd;
}
代码语言：javascript
复制
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.9.2/dist/umd/popper.min.js" integrity="sha384-IQsoLXl5PILFhosVNubq5LC7Qb9DXgDA9i+tQ8Zj3iwWAwPtgFTxbJ8NT4GN1R8p" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.min.js" integrity="sha384-cVKIPhGWiC2Al4u+LWgxfKTRIcfu0JTxR+EQDz/bgldoEyl4H0zUF0QKbrJ0EcQF" crossorigin="anonymous"></script>

<div class="row input-block">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" data-target-name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">A. Passport Number</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="target-input form-control border-0">
  </div>
</div>
<div class="row input-block">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" data-target-name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">B. Voter ID Card</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="target-input form-control border-0">
  </div>
</div>
<div class="row input-block">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" data-target-name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">C. Driving Licence</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="target-input form-control border-0">
  </div>
</div>
<div class="row input-block">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" data-target-name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">D. NREGA Job Card</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="target-input form-control border-0">
  </div>
</div>
<div class="row input-block">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" data-target-name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">E. National Population Register Letter</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="target-input form-control border-0">
  </div>
</div>
<div class="row input-block">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" data-target-name="OVD" class="check form-check-input" required>
    <h5 class="d-inline">F. Proof of Possession on Aadhaar</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="target-input form-control border-0">
  </div>
</div>
<div class="row input-block">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" data-target-name="cheese" class="check form-check-input" required>
    <h5 class="d-inline">Swiss</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="target-input form-control border-0">
  </div>
</div>
<div class="row input-block">
  <div class="border border-dark col-lg-7 ps-4">
    <input type="checkbox" data-target-name="cheese" class="check form-check-input" required>
    <h5 class="d-inline">Chedder</h5>
  </div>
  <div class="border border-dark col-lg-5">
    <input type="text" class="target-input form-control border-0">
  </div>
</div>
<div class="currently-active"></div>

​

票数 0
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/72687728

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