將jQuery應用於多個不同的動態創建的HTML元素

Question

我有一個表單我將用於編輯數據庫中的數據。它有3個由類別，子類別和item組成。根據前一個下拉列表中選擇的值動態填充。選擇所有3個下拉列表後，所選項目上的當前數據將通過jQuery添加到表單中。加載方法。

雖然我目前能夠顯示沒有問題的現有數據，但添加到表單的數據不會響應我的jQuery代碼。我懷疑這是因爲jQuery在$（document）.ready內部，因此，在添加項目之前運行。

如果是這樣，我可以做什麼來使動態添加的部分功能與我的jQuery？

我的jQuery代碼：

// Shows the details when yes is clicked 
$('#BizEditItemRadioYes').click(function(){ 

    $('.BizEdititemDiscountDetails').show(); 

}); 
// Hides the details when no is clicked 
$('#BizEditItemRadioNo').click(function(){ 

    $('.BizEdititemDiscountDetails').hide(); 

}); 
// calculates the discounted price when discount is checked yes 
$('#BizEditItemRadioYes').change(function(){ 
    if($(this).val() == 'Yes'){ 

    // calculates discount price when discount percentage changes 
    $('#BizEditItemPercent').change(function(){ 
     var percent=$('#BizEditItemPercent').val(); 
     var price=$('#BizEditItemPrice').val(); 
     var discountpercent=percent/100; 
     var discountprice=price * discountpercent; 
     $('#BizEditItemDiscountPrice').val(price - discountprice); 
    }); 
    // calculates discount price when discount price changes 
    $('#BizEditItemPrice').change(function(){ 
     var percent=$('#BizEditItemPercent').val(); 
     var price=$('#BizEditItemPrice').val(); 
     var discountpercent=percent/100; 
     var discountprice=price * discountpercent; 
     $('#BizEditItemDiscountPrice').val(price - discountprice); 
    }); 

    } 
}); 

動態添加的內容：

echo"<div class='BizEditItemDetails'>"; 
      echo"<label for='BizEditItemName'>Name:</label>"; 
      echo"<input class='BizEditItemInput' type='text' id='BizEditItemName' name='BizEditItemName' size='30' maxlength='50' value=\"$name\">"; 
      echo"<span></span>"; 
     echo"</div>"; 

     echo"<div class='BizEditItemDetails'>"; 
      echo"<label for='BizEditItemPrice'>Price:</label>"; 
      echo"<input class='BizEditItemInput' type='number' id='BizEditItemPrice' name='BizEditItemPrice' step='any' min=0 value=\"$price\">"; 
      echo"<span></span>"; 
     echo"</div>"; 

     echo"<div class='BizEditItemDetails'>"; 
      echo"<label>Discount:</label>"; 
       echo"<input type='radio' class='BizEditItemInput' value='Yes' id='BizEditItemRadioYes' name='BizEditItemDiscount'>Yes"; 
       echo"<input type='radio' checked='checked' class='BizEditItemInput' value='No' id='BizEditItemRadioNo' name='BizEditItemDiscount' step='any'>No"; 
      echo"</span></span>"; 
     echo"</div>"; 


     echo"<div class='BizEditItemDetails'>"; 
      echo"<div class='BizEdititemDiscountDetails'>"; 
       echo"<label for='BizEditItemPercent'>Discount Percentage</label>"; 
       echo"<input class='BizEditItemInput' type='number' id='BizEditItemPercent' name='BizEditItemPercent' step='any' min=0 value=\"$discountpercent\">%"; 
       echo"<span></span>"; 
      echo"</div>"; 
     echo"</div>"; 

     echo"<div class='BizEditItemDetails'>"; 
      echo"<div class='BizEdititemDiscountDetails'>"; 
       echo"<label for='BizEditItemDiscountPrice'>Discounted Price:</label>"; 
       echo"<input class='BizEditItemInput' type='number' id='BizEditItemDiscountPrice' name='BizEditItemDiscountPrice' step='any' min=0 value=\"$discountprice\" readonly >"; 
       echo"<span></span>"; 
      echo"</div>"; 
     echo"</div>"; 

     echo"<div class='BizEditItemDetails'>"; 
       echo"<label for='BizEditItemQty'>Quantity:</label>"; 
       echo"<input class='BizEditItemInput' type='number' id='BizEditItemQty' name='BizEditItemQty' min=0 value=\"$qty\">"; 
       echo"<span></span>"; 
     echo"</div>"; 



     echo"<div class='BizEditItemDetails'>"; 
      echo"<label for='BizEditItemDesc'>Desc:</label>"; 
      echo"<textarea class='BizEditItemInput' id='BizEditItemDesc' name='BizEditItemDesc' cols='30' rows='5'>$desc</textarea>"; 
      echo"<span></span>"; 
     echo"</div>"; 

     echo"<div class='BizEditItemDetails'>"; 
      echo"<input class='BizEditItemInput' style='margin-left:360px' type='submit' name='BizEditItemSubmit' value='Submit'>"; 
     echo"</div>"; 

Answer 1

看看http://api.jquery.com/on/

你需要改變你的jQuery代碼：

$(document).on('click','#BizEditItemRadioYes' ,function(){ 

    $('.BizEdititemDiscountDetails').show(); 

}); 

將文檔替換爲不是動態的容器。