我的问题是,如果每个问题有任何空白文本输入,我怎样才能显示验证消息?
这是一个小提琴,所以你可以测试它:http://jsfiddle.net/cbyJD/87/
下面是validation()函数代码:
function validation() {
// only keeping track of the final message
var alertValidation = "",
// toggle for showing only one error
showOnlyOneError = true;
$("input[data-type='qmark']").each(function(i) {
var questions = $(this).attr("data-qnum");
var marks = parseInt($("[class*=q" + (i+1) + "_ans_text]").text());
var txtinput = $(this).val();
// the message for this question
var msg = '';
if (txtinput == '') {
msg += "\n\u2022 You have not entered in a value in all the Indivdiaul Marks textbox \n";
}
if (marks < 0) {
msg += "\n\u2022 Your Total Marks Remaining does not equal 0 \n - You Need To Remove " + Math.abs(marks) + " Marks";
} else if (marks > 0) {
msg += "\n\u2022 Your Total Marks Remaining does not equal 0 \n - You Have " + marks + " Marks Remaining";
}
// if there is an error for the question, add it to the main message
if (msg.length) {
alertValidation += alertValidation.length ? '\n\n' : '';
alertValidation += "You have errors on Question Number: " + questions + "\n";
alertValidation += msg;
// stop if we only care about the first error
return !showOnlyOneError;
}
});
// show the error messages
if (alertValidation != "") {
alert(alertValidation);
return false;
}
return true;
}
答案 0 :(得分:0)
这是你的“第一次错误后的回归”。如果你填写第一个框但它有其他错误,你将只得到那些错误 - 第二个框没有被检查,你永远不会发现它是空的。最明显的修复是showOnlyOneError = false
。
如果这不是您想要的,那么您必须更详细地解释showOnlyOneError
所需的语义。
(另外,提示:将错误推入数组然后将其与"\n\n"
连接起来比每次检查消息字符串是否为空都要轻松得多。)