0

所以当用户访问页面时，表格应该如下所示：

Marks Per Answer                                             Total Marks    Marks Remaining
(blank text input)                                                 4              4
(blank text input)                                                 6              6
(disabled text input = 4 (same value as under Total Marks))        4              0

我的问题是，如何通过更改下面的 jquery 来解决上述两个步骤：

$(function() {   
//alert("here");         
var questions = $('#markstbl td[class*="_ans"]').length;

//disable single entry
for (var i=0;i<=questions;i++){   
if($("[class*=q"+i+"_mark]").length ==1){
var t_marks = $("[class*=q"+i+"_ans]").html();
//alert(t_marks);
$("[class*=q"+i+"_mark]").val(t_marks).attr('readonly',true);
//$("[class*=q"+i+"_mark]").attr('readonly',true);
}                    
}

//find each question set and add listeners
for (var i=0;i<=questions;i++){                                     
$('input[class*="q'+i+'"]').keyup(function(){
var cl = $(this).attr('class').split(" ")[1]
var questionno = cl.substring(cl.indexOf('q')+1,cl.indexOf('_'));
var tot_marks = $(".q"+questionno+"_ans_org").val();
//alert(tot_marks);
var ans_t=0;
$("[class*=q"+questionno+"_mark]").each(function(){
var num = (isNaN(parseInt($(this).val())))?0:parseInt($(this).val());
ans_t+=parseInt(num);                             
});
ans_t=tot_marks-ans_t;                             
//alert(ans_t);
//var fixedno = tot_marks;
var ans = ans_t;
var answerText='<strong>'+ans+'</strong>';
$(".q"+questionno+"_ans").val(ans);
$(".q"+questionno+"_ans_text").html(answerText);
});
}
});

下面是动态 HTML 表格：

<form id="Marks" action="<?php echo htmlentities($_SERVER['PHP_SELF']); ?>" method="post">


<table border='1' id='markstbl'>
<thead>
<tr>
<th class='questionth'>Question No.</th>
<th class='questionth'>Question</th>
<th class='answerth'>Answer</th>
<th class='answermarksth'>Marks per Answer</th>
<th class='totalmarksth'>Total Marks</th>
<th class='noofmarksth'>Marks Remaining</th>
</tr>
</thead>
<tbody>
<?php
$row_span = array_count_values($searchQuestionId);
$prev_ques = '';
foreach($searchQuestionId as $key=>$questionId){

?>

<tr class="questiontd">
    <?php
    if($questionId != $prev_ques){
    ?>
    <td class="questionnumtd" name="numQuestion" rowspan="<?php echo$row_span[$questionId]?>"><?php echo$questionId?> <input type="hidden" name="q<?php echo$questionId?>_ans_org" class="q<?php echo$questionId?>_ans_org" value="<?php echo$searchMarks[$key]?>"><input type="hidden" name="q<?php echo$questionId?>_ans" class="q<?php echo$questionId?>_ans" value="<?php echo$searchMarks[$key]?>"></td>
    <td class="questioncontenttd" rowspan="<?php echo$row_span[$questionId]?>"><?php echo$searchQuestionContent[$key]?> </td>
    <?php
    }
    ?>
<td class="answertd" name="answers[]"><?php echo$searchAnswer[$key]?></td>
<td class="answermarkstd">
<input class="individualMarks q<?php echo$questionId?>_mark_0"  q_group="1" name="answerMarks[]" id="individualtext" type="text" />
</td>
<?php
    if($questionId != $prev_ques){
    ?>
<td class="totalmarkstd" rowspan="<?php echo$row_span[$questionId]?>"><?php echo$totalMarks[$key]?></td>
<td class="noofmarkstd q<?php echo$questionId?>_ans_text"  q_group="1" rowspan="<?php echo$row_span[$questionId]?>"><?php echo"<strong>".$searchMarks[$key]."</strong>"?></td>
<?php
    }
    ?>
</tr>
<?php
$prev_ques = $questionId;
}
?>
</tbody>
</table>
</form>

目前在 jquery 函数中，我正在尝试使用 t_marks 变量来显示文本输入中的值，但是当我警告 t_marks 时没有显示任何内容

4

2 回答 2

1

您可以使用 readonly 而不是 disabled

改变

$("[class*=q"+i+"_mark]").val(t_marks).attr("disabled","disabled");

至

$("[class*=q"+i+"_mark]").val(t_marks).attr('readonly',true);
于 2012-11-28T15:28:41.087 回答
0

或者你可以在它获得焦点时让它聚焦

<input type="text" id="myTxt" onfocus="$(this).blur()"/>
于 2012-11-28T15:32:24.780 回答