Question

以下是我的验证功能：

function validation() {


    alertValidation= "";
        // Note, this is just so it's declared...

    $(".textAreaQuestion").each(function() {
        if (!this.value || this.value.length < 5) {
            alertValidation += "\nYou have not entered a valid Question\n";
        }

            if(alertValidation != ""){ 
                return false;//Stop the each loop 
            } 
    });

        $(".numberAnswerTxtRow").each(function() {

        if (!this.value) {
            alertValidation += "\nPlease Enter in the Number of Answers you Require for this question\n";
        }

    if(alertValidation != ""){ 
                return false;//Stop the each loop 
            } 

    });

        $(".txtWeightRow").each(function() {
        if (!this.value) {
            alertValidation += "\nPlease enter in a figure for Number of Marks for this Question\n";
        }

            if(alertValidation != ""){ 
                return false;//Stop the each loop 
            } 
    });

上面代码的作用是，如果行中有任何错误，它会为每一行显示警告。

示例：

如果在表格行中，用户已将.textAreaQuestion，.numberAnswerTxtRow和.textWeightRow全部清空，则在警报中它将在一个警报中显示所有相关消息，如下所示：

You have not entered a valid Question

Please Enter in the Number of Answers you Require for this question

Please enter in a figure for Number of Marks for this Question

现在每个表行都有自己的问题编号（表行号）。所以我想知道的是，我如何在警报中包含问题编号，以便说明警报消息引用哪些行？如果它像上面的示例，我希望警报显示如下：

You have errors on question number: 1 // how do I display this line in the alert

You have not entered a valid Question

Please Enter in the Number of Answers you Require for this question

Please enter in a figure for Number of Marks for this Question

以下是有关如何将问题编号添加到每个表格行中的代码：

var qnum = 1;

function insertQuestion(form) {  

    var $tbody = $('#qandatbl > tbody'); 
    var $tr = $("<tr class='optionAndAnswer' align='center'></tr>");
    var $qid = $("<td class='qid'>" + qnum + "</td>");

$tr.append($qid);
$tbody.append($tr); 

   $(form).find('.numberOfQuestions').val(qnum);

    ++qnum;
    $("#questionNum").text(qnum);

}

由于

Answer 1

好了，因为您将类 qid 添加到包含问题编号的td，您应该可以通过$('td.qid').html()访问它。这为您提供了td的innerhtml，其中包含 qid 类，请查看here以获取更多信息。

修改第二个想法$('td.qid').text()可能会更好。

如何在警报中显示表行号

1 个答案: