3

目前我有一个功能代码,用于在我的页面上动态添加和删除表单输入。我有多个表单需要包含在页面上,所以我做了一个事件操作,他们可以按下一个按钮,它会隐藏除相关表单之外的所有表单。这工作正常,但它与我的 jQuery/javascript 代码产生了冲突,因为代码使用类名来动态添加或删除输入字段。两种形式都必须使用相同的类名才能按原样使用 jQuery 函数,但这会产生冲突并且函数停止工作。我可以只编写函数的两个版本(每个类一个),但我正在尝试找到一种方法来概括这一点,这样我就不必拥有这么多函数。我正在考虑做这样的事情:

$('.ccinput').addClass('dinput').removeClass('ccinput');

我将相应地更改每个表单的类名,以便它们成为唯一与 jQuery 函数通信的人。这种方法似乎很容易出错,尤其是超过 2 个表单(我计划总共有 4 个表单)。你们知道我可以做到这一点的另一种方法吗?这是我的html代码供参考:

编辑:我对代码进行了重大更改,所以这是新版本。我从表单输入中删除了所有 ID 值并更改了 jQuery 函数,以便它不使用 ID 值作为选择器。这消除了一些冲突。我现在正在尝试使用 attr('class','newclass') 以便 jQuery 函数适用于两种代码。它似乎适用于第一种形式,但它拒绝适用于第二种形式。我不知道为什么。

<html>

<head>
<title></title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script>
<script src="jquery.maskedinput.js" type="text/javascript"></script>

<script type="text/javascript">
    $(document).ready(function() {
        $("#table1").hide();
        $("#table2").hide();
        $("#cc_button").click(function(){
            $("#table1").show();
            $("#table2").hide();
            $("#cctable tr").attr('class', 'dinput');
            $("#dbtable tr").attr('class', 'dbinput');
        });
        $("#db_button").click(function(){
            $("#table2").show();
            $("#table1").hide();
            $("#dbtable tr").attr('class', 'dinput');
            $("#cctable tr").attr('class', 'ccinput');
        });
        $('#btnAdd').click(function() {
            var num     = $('.dinput').length; // how many "duplicatable" input fields we currently have
            var newNum  = new Number(num + 1);      // the numeric ID of the new input field being added

            // create the new element via clone(), and manipulate it's ID using newNum value
            var newElem = $('.dinput:last').clone();

            // insert the new element after the last "duplicatable" input field
            $('.dinput:last').after(newElem);
            $(".dinput:last td:first").replaceWith( "<td>" + newNum + "</td>" );

            // enable the "remove" button
            $('#btnDel').attr('disabled','');

            $(".date").mask("99/99/9999");

            // business rule: you can only add 20 names
            if (newNum == 20)
                $('#btnAdd').attr('disabled','disabled');
        });

        $('#btnDel').click(function() {
            var num = $('.dinput').length; // how many "duplicatable" input fields we currently have
            $('.dinput:last').remove();     // remove the last element

            // enable the "add" button
            $('#btnAdd').attr('disabled','');

            // if only one element remains, disable the "remove" button
            if (num-1 == 1)
                $('#btnDel').attr('disabled','disabled');
        });

        $(".date").mask("99/99/9999");
    });
</script>
</head>
<body>
<div id="tablebuttons">
<button type="button" id="cc_button">CC</button> <button type="button" id="db_button">DB</button>
</div>
<div id="table1">

<form id="ccards" method="post" action="<?php echo htmlentities($PHP_SELF); ?>">
<table border="1" cellspacing="0">
<tr>
<th></th>
<th># (last four digits)</th>
<th>Amount</th>
<th>Approval</th>
<th>Date Received</th>
</tr>
<tbody id ="cctable" >
<tr class="ccinput">
    <td> 1 </td>
    <td> <input type="text" name="cc_num[]" maxlength="4" /> </td> 
    <td> <input type="int" name="cc_amnt[]" /> </td>
    <td> <input type="text" name="cc_app[]" maxlength="10" /> </td> 
    <td> <input class="date" type="text" name="cc_date[]" /> </td>
</tr>
</tbody>
</table>
<div>
    <input type="button" id="btnAdd" value="Add CC" />
    <input type="button" id="btnDel" value="Remove CC" />
</div>
<input type="submit" value="Submit" name="submit" />
</form>
</div>
<div id="table2">

<form id="db" method="post" action="<?php echo htmlentities($PHP_SELF); ?>">
<table border="1" cellspacing="0">
<tr>
<th></th>
<th>DB #</th>
<th>Amount</th>
<th>Date</th>
</tr>
<tbody id="dbtable">
<tr class="dbinput">
    <td> 1 </td>
    <td> <input type="text" name="db_num[]" /> </td> 
    <td> <input type="int" name="db_amnt[]" /> </td> 
    <td> <input class="date" type="text" name="db_date[]" /> </td>
</tr>
</tbody>
</table>
<div>
    <input type="button" id="btnAdd" value="Add DB" />
    <input type="button" id="btnDel" value="Remove DB" />
</div>
<input type="submit" value="Submit" name="submit" />
</form>
</div>
</body>

</html>
4

2 回答 2

0

好的,我解决了。我的选择器存在多个问题,我必须修复,但之后以下解决方案完美运行:

$("#cc_button").click(function(){
  $("#table1").show();
  $("#table2").hide();
  $("#cctable tr").attr('class', 'dinput');
  $("#dbtable tr").attr('class', 'dbinput');
});
$("#db_button").click(function(){
  $("#table2").show();
  $("#table1").hide();
  $("#dbtable tr").attr('class', 'dinput');
  $("#cctable tr").attr('class', 'ccinput');
});

这基本上会根据按下哪个按钮来更改每个表的类属性。从理论上讲,这应该适用于 4 种形式,尽管我还没有尝试过。这是那些想看看我做了什么的人的更新代码(自第一个代码以来我已经改变了很多):

<html>

<head>
<title></title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script>
<script src="jquery.maskedinput.js" type="text/javascript"></script>

<script type="text/javascript">
    $(document).ready(function() {
        $("#table1").hide();
        $("#table2").hide();
        $("#cc_button").click(function(){
            $("#table1").show();
            $("#table2").hide();
            $("#cctable tr").attr('class', 'dinput');
            $("#dbtable tr").attr('class', 'dbinput');
        });
        $("#db_button").click(function(){
            $("#table2").show();
            $("#table1").hide();
            $("#dbtable tr").attr('class', 'dinput');
            $("#cctable tr").attr('class', 'ccinput');
        });
        $('.btnAdd').click(function() {
            var num     = $('.dinput').length; // how many "duplicatable" input fields we currently have
            var newNum  = new Number(num + 1);      // the numeric ID of the new input field being added

            // create the new element via clone(), and manipulate it's ID using newNum value
            var newElem = $('.dinput:last').clone();

            // insert the new element after the last "duplicatable" input field
            $('.dinput:last').after(newElem);
            $(".dinput:last td:first").replaceWith( "<td>" + newNum + "</td>" );

            // enable the "remove" button
            $('.btnDel').attr('disabled','');

            $(".date").mask("99/99/9999");

            // business rule: you can only add 20 names
            if (newNum == 20)
                $('.btnAdd').attr('disabled','disabled');
        });

        $('.btnDel').click(function() {
            var num = $('.dinput').length; // how many "duplicatable" input fields we currently have
            $('.dinput:last').remove();     // remove the last element

            // enable the "add" button
            $('.btnAdd').attr('disabled','');

            // if only one element remains, disable the "remove" button
            if (num-1 == 1)
                $('.btnDel').attr('disabled','disabled');
        });

        $(".date").mask("99/99/9999");
    });
</script>
</head>
<body>
<div id="tablebuttons">
<button type="button" id="cc_button">CC</button> <button type="button" id="db_button">DB</button>
</div>
<div id="table1">

<form id="ccards" method="post" action="<?php echo htmlentities($PHP_SELF); ?>">
<table border="1" cellspacing="0">
<tr>
<th></th>
<th># (last four digits)</th>
<th>Amount</th>
<th>Approval</th>
<th>Date Received</th>
</tr>
<tbody id ="cctable" >
<tr class="ccinput">
    <td> 1 </td>
    <td> <input type="text" name="cc_num[]" maxlength="4" /> </td> 
    <td> <input type="int" name="cc_amnt[]" /> </td>
    <td> <input type="text" name="cc_app[]" maxlength="10" /> </td> 
    <td> <input class="date" type="text" name="cc_date[]" /> </td>
</tr>
</tbody>
</table>
<div>
    <input type="button" class="btnAdd" value="Add" />
    <input type="button" class="btnDel" value="Remove" />
</div>
<input type="submit" value="Submit" name="submit" />
</form>
</div>
<div id="table2">

<form id="db" method="post" action="<?php echo htmlentities($PHP_SELF); ?>">
<table border="1" cellspacing="0">
<tr>
<th></th>
<th>DB #</th>
<th>Amount</th>
<th>Date</th>
</tr>
<tbody id="dbtable">
<tr class="dbinput">
    <td> 1 </td>
    <td> <input type="text" name="db_num[]" /> </td> 
    <td> <input type="int" name="db_amnt[]" /> </td> 
    <td> <input class="date" type="text" name="db_date[]" /> </td>
</tr>
</tbody>
</table>
<div>
    <input type="button" class="btnAdd" value="Add" />
    <input type="button" class="btnDel" value="Remove" />
</div>
<input type="submit" value="Submit" name="submit" />
</form>
</div>
</body>

</html>
于 2012-08-09T01:25:55.743 回答
0

你可以使用这样的东西。

//when the Add Field button is clicked
$("#add").click(function (e) {
//Append a new row of code to the "#items" div
  $("#items").append('<div><input type="text" name="input[]"><button  class="delete">Delete</button></div>');
});

详细教程http://voidtricks.com/jquery-add-remove-input-fields/

于 2014-05-05T18:27:21.163 回答