我们使用jQuery .hide()来隐藏选择输入中的选项 – 一个月内不到31天.它适用于Google Chrome和FireFox,但在Internet Explorer,Opera和Safari中无效.以下是我们使用的
JavaScript代码：
$(function() {
// Show and hide days according to the selected year and month.
function show_and_hide_days(fp_form) {
var select_year= $(fp_form).find("select.value_year");
var select_month= $(fp_form).find("select.value_month");
var select_day= $(fp_form).find("select.value_day");
var selected_year= parseInt($(select_year).val());
var selected_month= parseInt($(select_month).val());
var selected_day= parseInt($(select_day).val());
var days_in_month= new Date(selected_year,selected_month,0).getDate();
if ((days_in_month >= 28))
{
// If selected day is bigger than the number of days in the selected month,reduce it to the maximal day in this month.
if (selected_day > days_in_month)
{
$(select_day).val(days_in_month);
}
// Show all the days in this month and hide days which are not in this month.
$(select_day).find("option").each(function() {
var day= parseInt($(this).val());
if (day <= days_in_month)
{
$(this).show();
}
else
{
$(this).hide();
}
});
}
}
// Show and hide all days in this page.
function show_and_hide_all_days() {
$("select.value_day").each(function() {
var form= $(this).closest("form");
// Show and hide days according to the selected year and month.
show_and_hide_days(form);
});
}
// Show and hide all days in this page.
show_and_hide_all_days();
$("select.value_year,select.value_month").live("change",function() {
var form= $(this).closest("form");
// Show and hide days according to the selected year and month.
show_and_hide_days(form);
return false;
});
});
这是HTML代码：
<select class="value_year">
<option value="2000">2000</option>
<option value="2001">2001</option>
<option value="2002">2002</option>
<option value="2003">2003</option>
<option value="2004">2004</option>
<option value="2005">2005</option>
<option value="2006">2006</option>
<option value="2007">2007</option>
<option value="2008">2008</option>
<option value="2009">2009</option>
<option value="2010">2010</option>
<option value="2011">2011</option>
<option value="2012" selected="selected">2012</option>
<option value="2013">2013</option>
</select>
/
<select class="value_month">
<option value="1">01</option>
<option value="2">02</option>
<option value="3">03</option>
<option value="4">04</option>
<option value="5">05</option>
<option value="6">06</option>
<option value="7">07</option>
<option value="8">08</option>
<option value="9">09</option>
<option value="10">10</option>
<option value="11">11</option>
<option value="12" selected="selected">12</option>
</select>
/
<select class="value_day">
<option value="1">01</option>
<option value="2">02</option>
<option value="3">03</option>
<option value="4">04</option>
<option value="5">05</option>
<option value="6">06</option>
<option value="7">07</option>
<option value="8">08</option>
<option value="9">09</option>
<option value="10">10</option>
<option value="11">11</option>
<option value="12">12</option>
<option value="13">13</option>
<option value="14">14</option>
<option value="15">15</option>
<option value="16">16</option>
<option value="17">17</option>
<option value="18" selected="selected">18</option>
<option value="19">19</option>
<option value="20">20</option>
<option value="21">21</option>
<option value="22">22</option>
<option value="23">23</option>
<option value="24">24</option>
<option value="25">25</option>
<option value="26">26</option>
<option value="27">27</option>
<option value="28">28</option>
<option value="29">29</option>
<option value="30">30</option>
<option value="31">31</option>
</select>
我们正在使用jQuery v1.8.3(我升级到这个版本来测试它是否修复了问题,但是没有).
谢谢,
URI.
解决方法
这是一个浏览器问题,您无法在某些浏览器中隐藏选项,因为$(‘.selector’).hide();类似于$(‘.selector’).css(‘display’,’none’);一些浏览器无法隐藏它
你需要使用$(‘.selector’).remove();和$(‘.selector’).append();
更改代码
if ((days_in_month >= 28))
{
// If selected day is bigger than the number of days in the selected month,reduce it to the maximal day in this month.
if (selected_day > days_in_month)
{
$(select_day).val(days_in_month);
}
// Show all the days in this month and hide days which are not in this month.
$(select_day).find("option").each(function() {
var day= parseInt($(this).val());
if (day <= days_in_month)
{
$(this).show();
}
else
{
$(this).hide();
}
});
}
至
// Remove days 29 - 31
$(select_day).find("option[value='29'],option[value='30'],option[value='31']").remove();
var daysOptions = "";
if (days_in_month >= 29) {
daysOptions += '<option value="29">29</option>';
}
if (days_in_month >= 30) {
daysOptions += '<option value="30">30</option>';
}
if (days_in_month == 31) {
daysOptions += '<option value="31">31</option>';
}
$(select_day).append(daysOptions);
http://jsfiddle.net/sL4jY/10/在IE chrome和Firefox中进行了测试
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