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Виталий Шебаниц
Asked:2020-07-03 20:35:27 +0800 CST2020-07-03 20:35:27 +0800 CST

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  • 772

input按下按钮后无法自动转移焦点。

onclick在html

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.4/css/bootstrap.min.css" integrity="2hfp1SzUoho7/TsGGGDaFdsuuDL0LX2hnUp6VkX3CUQ2K4K+xjboZdsXyp4oUHZj" crossorigin="anonymous">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.4/js/bootstrap.min.js" integrity="VjEeINv9OSwtWFLAtmc4JCtEJXXBub00gtSnszmspDLCtC0I4z4nqz7rEFbIZLLU" crossorigin="anonymous"></script>
<div class="btn-group w-100">
  <button type="button" class="btn border" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" onclick="$('#inputAutocompleteAccesses').focus();">Выбрать право</button>
  <div class="dropdown-menu col-12 shadow text-center">
    <div class="container-fluid p-0">
      <div class="row m-0 p-0">
        <input class="form-control mx-2" oninput="sendRequestAccessJson($(this).val());" id="inputAutocompleteAccesses" placeholder="Введите право" />
      </div>
      <div id="autocompleteAccesses">

      </div>

      <div class="row mx-1 justify-content-center">
        <p>1</p>
      </div>
      <div class="row mx-1 justify-content-center">
        <p>2</p>
      </div>
      <div class="row mx-1 justify-content-center">
        <p>3</p>
      </div>
    </div>


  </div>
</div>

现在我决定了：

function f(){
  $('#inputAutocompleteAccesses').focus();
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.4/css/bootstrap.min.css" integrity="2hfp1SzUoho7/TsGGGDaFdsuuDL0LX2hnUp6VkX3CUQ2K4K+xjboZdsXyp4oUHZj" crossorigin="anonymous">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.4/js/bootstrap.min.js" integrity="VjEeINv9OSwtWFLAtmc4JCtEJXXBub00gtSnszmspDLCtC0I4z4nqz7rEFbIZLLU" crossorigin="anonymous"></script>
<div class="btn-group w-100">
  <button type="button" class="btn border" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" onclick="setTimeout(f, 10);">Выбрать право</button>
  <div class="dropdown-menu col-12 shadow text-center">
    <div class="container-fluid p-0">
      <div class="row m-0 p-0">
        <input class="form-control mx-2" oninput="sendRequestAccessJson($(this).val());" id="inputAutocompleteAccesses" placeholder="Введите право" />
      </div>
      <div id="autocompleteAccesses">

      </div>

      <div class="row mx-1 justify-content-center">
        <p>1</p>
      </div>
      <div class="row mx-1 justify-content-center">
        <p>2</p>
      </div>
      <div class="row mx-1 justify-content-center">
        <p>3</p>
      </div>
    </div>


  </div>
</div>

但它是怎么回事？

css

1 个回答

  1. Best Answer

    使用引导事件。

    $('#myDropdown').on('shown.bs.dropdown', function () {
  $(this).find('input').trigger('focus');
})
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>

<!-- Example split danger button -->
<div id="myDropdown" class="btn-group">
  <button type="button" class="btn btn-danger">Action</button>
  <button type="button" class="btn btn-danger dropdown-toggle dropdown-toggle-split strelka" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
    <span class="sr-only">Toggle Dropdown</span>
  </button>
  <div  class="dropdown-menu">
    <a class="dropdown-item" href="#">1</a>
    <a class="dropdown-item" href="#">2</a>
    <a class="dropdown-item" href="#">3</a>
    <div class="dropdown-item">
      <input class="form-control" placeholder="Введите право">
    </div>
  </div>
</div>

    • 1

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