jquery-ui - 如何禁用可选列表的特定元素

Question

我想禁用可选列表的特定元素。
我可以禁用整个列表，但是当我尝试使用特定元素时，它不起作用。

$('#disableButton').click(function(){  

    $('#selectable li#b ').selectable('disable');
});

http://jsfiddle.net/Komlan/RYWaZ/1/

这是我的代码

    //reset seats
function resetSelect(){
    var options = { filter: "li.selectable" };
$( "#selectable").selectable(options);               

}
//Ajax get taken seats
$('input[name="choice"]').change(function(){
    resetSelect();
    var sc_id = $('input:radio[name=choice]:checked').val();

    $.ajax({
        url: 'seatings.php',
        data:{ sc_id:sc_id},
        type: "POST",
        dataType:'text',
        success: function(data){
             var id = data.split(",");
             for (var i=0;i<id.length -1;i++){
             alert(id[i]);
                var string = "#"+id[i];
                $(string).css("color","red");
                $('#selectable li'+string).removeClass("selectable ui-selected"); 
             }
                var options = { filter: "li.selectable" };
            $( "#selectable" ).selectable('destroy').selectable(options);                
        }

    }); 
});

总之，每次我的单选按钮组发生变化时，我都会得到一系列 id 并一个接一个地禁用它们。

Answer 1

没有直接的方法来做到这一点(AFAIK)，但这里有一个你可以使用的小技巧(记住，这只是一个技巧，也许不是最好的):

添加css类“selectable”(或任何你想要的):

<ol id="selectable">
  <li class="ui-widget-content selectable" id="ok"> 1</li>
  <li class="ui-widget-content selectable"> 2</li>
  <li class="ui-widget-content selectable"> 3</li>
  <li class="ui-widget-content selectable"> 4</li>
  <li class="ui-widget-content selectable"> 5</li>
  <li class="ui-widget-content selectable"> 6</li>
  <li class="ui-widget-content selectable"> 7</li>
</ol>

然后在该 css 类上使用 filter :

// Create a filter to only make <li> with the specified css class, selectable.
var options = { filter: "li.selectable" };
$( "#selectable" ).selectable(options);

$('#lol').click(function(){
    console.log('dsfds');

    // Remove/add (toggle) the class used in the filter on the <li> you want to remove the selectable.
    // (Also remove the ui-selected in case it's selected.)
    $('#selectable li#ok').toggleClass("selectable").removeClass("ui-selected");

    // Now destroy the selectable and re-create it with the filter again.
    // We removed the css class from a <li> used in the filter, so it won't be selectable again.
    $( "#selectable" ).selectable('destroy').selectable(options);
});

更新: http://jsfiddle.net/RYWaZ/7/

引用:

Selectable filter

.toggleClass()