我有输入文本框列表,其中包含class =“txtdate”
和
另一个输入文本框的列表,其中class =“txthrs”
像
<div id="dvlitr"><li id="0"><label class="txtdatewrapper"><input type="text" placeholder="Select Date" class="txtdate hasDatepicker" value="" readonly="" id="txtsDate1"><span class="txtdateicon"></span> </label><input type="text" placeholder="Hrs" class="txthours" value="" id="txtsHrs1"><a title="Add" class="btnadd" href="javascript:void(0)"></a><a title="Delete" id="btndelnewli1" class="btndelete" href="javascript:void(0)"></a><input type="hidden" placeholder="Hrs" value="0" id="iDhdn0"></li><li id="2"><label class="txtdatewrapper"><input type="text" placeholder="Select Date" class="txtdate hasDatepicker" readonly="" id="txtsDate2" value="10/28/2013"><span class="txtdateicon"></span></label> <input type="text" placeholder="Hrs" class="txthours" id="txtsHrs2"><a title="Add" class="btnadd" href="javascript:void(0)"></a><a title="Delete" id="btndelnewli2" class="btndelete" href="javascript:void(0)"></a><input type="hidden" placeholder="Hrs" value="0" id="iDhdn2"></li><li id="3"><label class="txtdatewrapper"><input type="text" placeholder="Select Date" class="txtdate hasDatepicker" readonly="" id="txtsDate3" value="10/30/2013"><span class="txtdateicon"></span></label> <input type="text" placeholder="Hrs" class="txthours" id="txtsHrs3"><a title="Add" class="btnadd" href="javascript:void(0)"></a><a title="Delete" id="btndelnewli3" class="btndelete" href="javascript:void(0)"></a><input type="hidden" placeholder="Hrs" value="0" id="iDhdn3"></li></div>
我必须找到有空日期或空小时(其中任何一个)的李
我试过这样的事情
var count = $('#dvlitr > li').filter(function() {
var $txtdate = $(this).children('.txtdate').val();
var $txthrs = $(this).children('.txthrs').val();
return (($.trim($txtdate) != '' && $.trim($txthrs) === '') || ($.trim($txtdate) === '' && $.trim($txthrs) != ''))
}).length;
alert(count);
但是dint得到了理想的结果
请帮助
谢谢
答案 0 :(得分:1)
在“
:
”之前删除“input
”...会更好,但没有做到这一点!
有关更多信息,请参阅Jquery selectors doc
你犯了一些错误。我现在这个应该是正确的:
var count = $("li > input.txtdate[value='']+
input.txthrs[value='']").length;
您是否只想检索li
和txtdate
都为空的txthrs
个数?
您可以在行动in this updated palash fiddle
中看到它要完成,如果空value
实际上缺少value
attrib时,请使用以下内容:
var count = $("li > input.txtdate:not([value])+
input.txthrs:not([value])").length;
确保有值attrib:$('input [type = text']:not([value]))。attr('value','');
要检索几乎有一个字段为空的行数,请使用:
var count = $.unique($("li").has("input.txtdate[value=],input.txtdate:not([value]),input.txthrs[value=],input.txthrs:not([value])")).length;
更新
$('input:not([value])').attr('value', '');
//Getting only lines when one of input is empty
$.unique($("li").has("input.txtdate[value=''],input.txthrs[value='']")).length;
//Getting only lines when both inputs are empty
$("li > input.txtdate[value='']+input.txthrs[value='']").length;
相信我,不是......
使用新DOM输入的UPDATE不是li的直接子项
$('input:not([value])').attr('value', '');
//Getting only lines when one of input is empty
$.unique($("li").has("input.txtdate[value=''],input.txthrs[value='']")).length;
//Getting only lines when both inputs are empty
$("li input.txtdate[value='']+input.txthrs[value='']").length;
我醒了......对不起!所以你从一开始就是正确的,用简单的选择器,你无法检测用户更新的输入!对不起我错了!
我创建了这个插件here:
jQuery.extend(
jQuery.expr[':'],
{
/// check that a field's value property has a particular value
'field-value': function (el, indx, args) {
var a, v = $(el).val();
if ( (a = args[3]) ) {
switch ( a.charAt(0) ) {
/// begins with
case '^':
return v.substring(0,a.length-1) == a.substring(1,a.length);
break;
/// ends with
case '$':
return v.substr(v.length-a.length-1,v.length) ==
a.substring(1,a.length);
break;
/// contains
case '*': return v.indexOf(a.substring(1,a.length)) != -1; break;
/// equals
case '=': return v == a.substring(1,a.length); break;
/// not equals
case '!': return v != a.substring(1,a.length); break;
/// equals
default: return v == a; break;
}
}
else {
return !!v;
}
}
}
);
允许你制作一些这样的选择:
$('input:field-value(=)');//for empty
$.unique($("li").has("input.txtdate:field-value(=),input.txthrs:field-value(=)")).length;
答案 1 :(得分:1)
在查看正确的HTML标记后,您可以执行以下操作:
var count = $('li').filter(function () {
var $txtdate = $(this).children('.txtdate').val();
var $txthrs = $(this).children('.txthrs').val();
return ($.trim($txtdate) === '' && $.trim($txthrs) === '')
}).length;
console.log('count: ' + count);
演示:Fiddle
<强>更新强>
你可以这样做:
var count = $('li').filter(function () {
var $txtdate = $(this).find('.txtdate').val();
var $txthrs = $(this).find('.txthrs').val();
return ($.trim($txtdate) === '' && $.trim($txthrs) === '')
}).length;
答案 2 :(得分:0)
试试这个。它将检索所有输入并迭代它们。
var count = 0;
$('.txtdate, .txthrs').each(function (){
if($(this).val() == '') { //If inspects if the input has an empty value
//Do something here if the value is empty
//can add css to change the color or
//assign class to it or call method, etc
count++;
}
});
console.log('count: ' + count);