使用jquery获取更新输入的值

rjee0c15  于 2023-02-11  发布在  jQuery
关注(0)|答案(2)|浏览(166)

我正在开发Html表单,其中的值将使用jquery作为用户输入值进行更新。

当您在输入值字段中输入值时,它将立即更新价格字段中的价格
现在,我想添加所有字段的总和,这将是字段1,字段2,字段3,字段4,字段5和字段6,并显示在总量的总和,但所有字段的总计算没有更新总量。

HTML代码

<form action="" method="post">
      <div class="row">
        <div class="col-md-6">
          <div class="mb-3">
            <input type="text" class="form-control" name="fullname" placeholder="FUll Name">
          </div>
        </div>
        <div class="col-md-6">
          <div class="mb-3">
            <input type="email" class="form-control" name="email" placeholder="Your Email">
          </div>
        </div>
        <div class="col-md-6">
          <div class="mb-3 menier">
            <h4>Iron Bark:</h4>
            $210 Per Cubic Metre 
            <input type="number" id="ironbark" class="form-control" placeholder="Enter Your Value">
            <div class="mt-3">
                Price 
            <input id="ironbarvalue" type="text" name="ironbark" class="total-amount form-control"  readonly>
            </div>
            
          </div>
        </div>
        <div class="col-md-6 ">
          <div class="mb-3 menier">
            <h4>Red Gum:</h4>
            $200 Per Cubic Metre 
            <input type="number" id="redgum" class="form-control" placeholder="Enter Your Value">
            <div class="mt-3">
              <span class="sammy">Price </span>
            
            <input type="text" id="redgumvalue" name="redgum" class="total-amount form-control"  readonly>
            </div>
          </div>
        </div>
        <div class="col-md-6">
          <div class="mb-3 menier">
            <h4>Mixed Gum:</h4>
            $100 Per Cubic Metre 
            <input type="number" id="mixedgum"  class="form-control" placeholder="Enter Your Value">
            <div class="mt-3">
            Price <input id="mixedgumvalue" type="text" name="mixedgum" class="total-amount form-control"  readonly>
            </div>
          </div>
        </div>
        <div class="col-md-6">
          <div class="mb-3 menier">
            <h4>Brown Bark:</h4>
            $110 Per Cubic Metre <input id="brownbark" type="number" class="form-control" placeholder="Enter Your Value">
            <div class="mt-3">
            Price <input id="brownbarkvalue" type="text" name="brownbark" class="total-amount form-control"   readonly>
            </div>
          </div>
        </div>
        <div class="col-md-6 mt-2">
          <div class="mb-3">
            <input type="checkbox" class="form-check-input" id="stackfee" name="stackingfee" value="25">
            <label class="form-check-label" for="exampleCheck1">Stacking Fee: $25 Per m3 </label>
          </div>
        </div>
        <div class="col-md-6 mt-2">
          <div class="mb-3">
            <input type="checkbox" class="form-check-input" id="delivery" name="deliveryfee" value="50">
            <label class="form-check-label" for="exampleCheck1">Delivery Fee: $50 Minimum  </label>
          </div>
        </div>
        <div class="col-md-12 mb-3">
          <strong class="">
          Total Amount: $
          </strong>
          <input type="number" class="form-control total-amount" id="sum" name="totalsum" disabled>
        </div>
        <div class="col-md-12">
          <button type="submit" name="submit" class="btn btn-primary">Submit</button>
        </div>
      </div>
    </form>

Jquery代码

$(document).ready(function(){

  $('#ironbark').change(function(){
    var ironbarkrate = parseFloat($('#ironbark').val()) || 0;
    $('#ironbarvalue').attr('value', 210 * ironbarkrate);    
  });

  $('#redgum').change(function(){
    var redgum = parseFloat($('#redgum').val()) || 0;
    $('#redgumvalue').attr('value', 200 * redgum);    
  });

  $('#mixedgum').change(function(){
    var mixedgum = parseFloat($('#mixedgum').val()) || 0;
    $('#mixedgumvalue').attr('value', 100 * mixedgum);    
  });

  $('#brownbark').change(function(){
    var brownbark = parseFloat($('#brownbark').val()) || 0;
    $('#brownbarkvalue').attr('value', 110 * brownbark);   

  });

  $('#ironbarvalue, #redgumvalue,#mixedgumvalue,#brownbarkvalue').change(function(){
        var value1 = parseFloat($('#ironbarvalue').val()) || 0;
        var value2 = parseFloat($('#redgumvalue').val()) || 0;
        var value3 = parseFloat($('#mixedgumvalue').val()) || 0;
        var value4 = parseFloat($('#brownbarkvalue').val()) || 0;
        var value5 = parseFloat($('#stackfee').val()) || 0;
        var value6 = parseFloat($('#delivery').val()) || 0;
        $('#sum').attr('value',value1 + value2 + value3 + value4 + value5 + value5);
   });

});

我试图得到所有的总和总额...但我值得注意的是得到总额显示,不是因为价格字段是由Jquery生成

92dk7w1h

92dk7w1h1#

您需要创建一个通用函数来计算总和,并且需要在每个输入change和复选框click事件中调用该函数,如下所示:
工作示例:

$(document).ready(function() {
  $('#ironbark').change(function() {
    $('#ironbarvalue').val(210 * (parseFloat($(this).val()) || 0));
    calculateSum();
  });

  $('#redgum').change(function() {
    var redgum = parseFloat($('#redgum').val()) || 0;
    $('#redgumvalue').val(200 * (parseFloat($(this).val()) || 0));
    calculateSum();
  });

  $('#mixedgum').change(function() {
    $('#mixedgumvalue').val(100 * (parseFloat($(this).val()) || 0));
    calculateSum();
  });

  $('#brownbark').change(function() {
    $('#brownbarkvalue').val(110 * (parseFloat($(this).val()) || 0));
    calculateSum();

  });
  
  $('#stackfee').click(function() {
     calculateSum();
  });
  
  $('#delivery').click(function() {
     calculateSum();
  });
});

function calculateSum() {
  var value1 = parseFloat($('#ironbarvalue').val()) || 0;
  var value2 = parseFloat($('#redgumvalue').val()) || 0;
  var value3 = parseFloat($('#mixedgumvalue').val()) || 0;
  var value4 = parseFloat($('#brownbarkvalue').val()) || 0;
  var value5 = ($('#stackfee').is(":checked")) ? parseFloat($('#stackfee').val()) : 0;
  var value6 = ($('#delivery').is(":checked")) ? parseFloat($('#delivery').val()) : 0;
  $('#sum').val(value1 + value2 + value3 + value4 + value5 + value6);
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form action="" method="post">
  <div class="row">
    <div class="col-md-6">
      <div class="mb-3">
        <input type="text" class="form-control" name="fullname" placeholder="FUll Name">
      </div>
    </div>
    <div class="col-md-6">
      <div class="mb-3">
        <input type="email" class="form-control" name="email" placeholder="Your Email">
      </div>
    </div>
    <div class="col-md-6">
      <div class="mb-3 menier">
        <h4>Iron Bark:</h4>
        $210 Per Cubic Metre
        <input type="number" id="ironbark" class="form-control" placeholder="Enter Your Value">
        <div class="mt-3">
          Price
          <input id="ironbarvalue" type="text" name="ironbark" class="total-amount form-control" readonly>
        </div>

      </div>
    </div>
    <div class="col-md-6 ">
      <div class="mb-3 menier">
        <h4>Red Gum:</h4>
        $200 Per Cubic Metre
        <input type="number" id="redgum" class="form-control" placeholder="Enter Your Value">
        <div class="mt-3">
          <span class="sammy">Price </span>

          <input type="text" id="redgumvalue" name="redgum" class="total-amount form-control" readonly>
        </div>
      </div>
    </div>
    <div class="col-md-6">
      <div class="mb-3 menier">
        <h4>Mixed Gum:</h4>
        $100 Per Cubic Metre
        <input type="number" id="mixedgum" class="form-control" placeholder="Enter Your Value">
        <div class="mt-3">
          Price <input id="mixedgumvalue" type="text" name="mixedgum" class="total-amount form-control" readonly>
        </div>
      </div>
    </div>
    <div class="col-md-6">
      <div class="mb-3 menier">
        <h4>Brown Bark:</h4>
        $110 Per Cubic Metre <input id="brownbark" type="number" class="form-control" placeholder="Enter Your Value">
        <div class="mt-3">
          Price <input id="brownbarkvalue" type="text" name="brownbark" class="total-amount form-control" readonly>
        </div>
      </div>
    </div>
    <div class="col-md-6 mt-2">
      <div class="mb-3">
        <input type="checkbox" class="form-check-input" id="stackfee" name="stackingfee" value="25">
        <label class="form-check-label" for="exampleCheck1">Stacking Fee: $25 Per m3 </label>
      </div>
    </div>
    <div class="col-md-6 mt-2">
      <div class="mb-3">
        <input type="checkbox" class="form-check-input" id="delivery" name="deliveryfee" value="50">
        <label class="form-check-label" for="exampleCheck1">Delivery Fee: $50 Minimum  </label>
      </div>
    </div>
    <div class="col-md-12 mb-3">
      <strong class="">
          Total Amount: $
          </strong>
      <input type="number" class="form-control total-amount" id="sum" name="totalsum" disabled>
    </div>
    <div class="col-md-12">
      <button type="submit" name="submit" class="btn btn-primary">Submit</button>
    </div>
  </div>
</form>
nfg76nw0

nfg76nw02#

获取太多的id会有问题,请使用$(document)选择全部,并使用**$('#sum').瓦尔()**输入总值。

$(document).change(function(){
    var value1 = parseFloat($('#ironbarvalue').val()) || 0;
    var value2 = parseFloat($('#redgumvalue').val()) || 0;
    var value3 = parseFloat($('#mixedgumvalue').val()) || 0;
    var value4 = parseFloat($('#brownbarkvalue').val()) || 0;
    var value5 = parseFloat($('#stackfee').val()) || 0;
    var value6 = parseFloat($('#delivery').val()) || 0;
    $('#sum').val(value1 + value2 + value3 + value4 + value5 + value5);
});

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