在Bootstrap中更改表單樣式進行驗證

Question

我發現了一個代碼片段，它正是我所需要的，只需稍作更改即可。 The sample code is here，我試着創建一個樣本表格，可以訪問here。 我需要的唯一調整是，一旦表單加載，我想爲必填字段顯示星號。但是到目前爲止，它顯示了一種錯誤樣式（當頁面打開時這是不需要的）。我怎樣才能改變表格？

腳本

$(document).ready(function() { 
    $('.input-group input[required], .input-group textarea[required], .input-group select[required]').on('keyup change', function() { 
     var $form = $(this).closest('form'), 
      $group = $(this).closest('.input-group'), 
      $addon = $group.find('.input-group-addon'), 
      $icon = $addon.find('span'), 
      state = false; 

     if (!$group.data('validate')) { 
      state = $(this).val() ? true : false; 
     } else if ($group.data('validate') == "email") { 
      state = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/.test($(this).val()) 
     } else if ($group.data('validate') == 'phone') { 
      state = /^[(]{0,1}[0-9]{3}[)]{0,1}[-\s\.]{0,1}[0-9]{3}[-\s\.]{0,1}[0-9]{4}$/.test($(this).val()) 
     } else if ($group.data('validate') == "length") { 
      state = $(this).val().length >= $group.data('length') ? true : false; 
     } else if ($group.data('validate') == "number") { 
      state = !isNaN(parseFloat($(this).val())) && isFinite($(this).val()); 
     } 

     if (state) { 
      $addon.removeClass('danger'); 
      $addon.addClass('success'); 
      $icon.attr('class', 'glyphicon glyphicon-ok'); 
     } else { 
      $addon.removeClass('success'); 
      $addon.addClass('danger'); 
      $icon.attr('class', 'glyphicon glyphicon-remove'); 
     } 

     if ($form.find('.input-group-addon.danger').length == 0) { 
      $form.find('[type="submit"]').prop('disabled', false); 
     } else { 
      $form.find('[type="submit"]').prop('disabled', true); 
     } 
    }); 

    $('.input-group input[required], .input-group textarea[required], .input-group select[required]').trigger('change'); 
}); 

HTML

<div class="container"> 
    <div class="row"> 
     <h2>Input Validation + Colorful Input Groups</h2> 
    </div> 
    <div class="row"> 
     <div class="col-sm-offset-4 col-sm-4"> 
     <form method="post"> 
      <div class="form-group"> 
       <label for="validate-text">Validate Text</label> 
       <div class="input-group"> 
        <input type="text" class="form-control" name="validate-text" id="validate-text" placeholder="Validate Text" required> 
        <span class="input-group-addon danger"><span class="glyphicon glyphicon-remove"></span></span> 
       </div> 
      </div> 
      <div class="form-group"> 
       <label for="validate-optional">Optional</label> 
       <div class="input-group"> 
        <input type="text" class="form-control" name="validate-optional" id="validate-optional" placeholder="Optional"> 
        <span class="input-group-addon info"><span class="glyphicon glyphicon-asterisk"></span></span> 
       </div> 
      </div> 
      <div class="form-group"> 
       <label for="validate-optional">Already Validated!</label> 
       <div class="input-group"> 
        <input type="text" class="form-control" name="validate-text" id="validate-text" placeholder="Validate Text" value="Validated!" required> 
        <span class="input-group-addon danger"><span class="glyphicon glyphicon-remove"></span></span> 
       </div> 
      </div> 
      <div class="form-group"> 
       <label for="validate-email">Validate Email</label> 
       <div class="input-group" data-validate="email"> 
        <input type="text" class="form-control" name="validate-email" id="validate-email" placeholder="Validate Email" required> 
        <span class="input-group-addon danger"><span class="glyphicon glyphicon-remove"></span></span> 
       </div> 
      </div> 
      <div class="form-group"> 
       <label for="validate-phone">Validate Phone</label> 
       <div class="input-group" data-validate="phone"> 
        <input type="text" class="form-control" name="validate-phone" id="validate-phone" placeholder="(814) 555-1234" required> 
        <span class="input-group-addon danger"><span class="glyphicon glyphicon-remove"></span></span> 
       </div> 
      </div> 
      <div class="form-group"> 
       <label for="validate-length">Minimum Length</label> 
       <div class="input-group" data-validate="length" data-length="5"> 
        <textarea type="text" class="form-control" name="validate-length" id="validate-length" placeholder="Validate Length" required></textarea> 
        <span class="input-group-addon danger"><span class="glyphicon glyphicon-remove"></span></span> 
       </div> 
      </div> 
      <div class="form-group"> 
       <label for="validate-select">Validate Select</label> 
       <div class="input-group"> 
        <select class="form-control" name="validate-select" id="validate-select" placeholder="Validate Select" required> 
        <option value="">Select an item</option> 
        <option value="item_1">Item 1</option> 
        <option value="item_2">Item 2</option> 
        <option value="item_3">Item 3</option> 
        </select> 
        <span class="input-group-addon danger"><span class="glyphicon glyphicon-remove"></span></span> 
       </div> 
      </div> 
      <div class="form-group"> 
       <label for="validate-number">Validate Number</label> 
       <div class="input-group" data-validate="number"> 
        <input type="text" class="form-control" name="validate-number" id="validate-number" placeholder="Validate Number" required> 
        <span class="input-group-addon danger"><span class="glyphicon glyphicon-remove"></span></span> 
       </div> 
      </div> 
      <button type="submit" class="btn btn-primary col-xs-12" disabled>Submit</button> 
     </form> 
     </div> 
    </div> 
</div> 

Answer 1

你需要從以下腳本行發表評論。

$('.input-group input[required], .input-group textarea[required], .input-group select[required]').trigger('change'); 

這是你的最後一行document.ready。這是頁面加載時觸發更改事件的行，並將星號更改爲交叉行。只要評論這一行，你就很好。

編輯 添加danger類而不是info類;這會默認顯示你的星號爲紅色，驗證時它會帶有複選標記的綠色背景。如下修改星號form-group。 可選

注意 撤消腳本改變我之前建議。