doubing3662 2014-09-29 11:42
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显示和隐藏选择选项

I've created a very basic form that has 2 dropdown lists.

Each list contains the same entries:

<option value='1234:0'>Closed</option>
<option value='4567:2'>Open</option>
<option value='6857:1'>Dead</option>
<option value='9856:1'>Alive</option>
<option value='0000:0'>Other</option>

If an entry in dropdown 1 is selected, then that entry should be removed from dropdown 2

If a different entry is selected in dropdown 1, then that should be removed from dropdown 2 and the original entry returned to dropdown 2

if nothing is selected in dropdown 1, then all options should be shown in dropdown 2.

I've created a FIDDLE, showing how far I've got... it's not very far.

Can any one help with this ?

Thanks

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  • douyongdao4046 2014-09-29 11:53
    关注

    Try this

    $(function(){
    
        $('#test').change(function () {
    
            var selected = $(this).val();   
    
            $("#test2 option").show();
    
            $("#test2 option[value='" + selected + "']").hide();
    
        }); 
    
    }); 
    

    If you want to use text you can try this

    $(function(){
    
        $('#test').change(function () {
    
            var selected = $('option:selected', this).text();
    
            $("#test2 option").each(function(){
    
                if($(this).text() == selected) {
    
                    $(this).hide();
    
                } else {
    
                    $(this).show();
                }
    
            })
    
        }); 
    
    }); 
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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