jquery选择禁用选项

Question

我有一个选项有一些选项:

 <select id="select">
   <option>1</option>
   <option disabled="true">2</option>
   <option>3</option>
 </select>

我正在使用Chosen Plugin for jQuery,问题是从视图中删除了禁用的选项.但我需要将其显示为无法忽略的禁用元素.

有没有机会选择jquery插件？

- 该示例将转换为:

 <ul class="chzn-results">
   <li id="location_select_chzn_o_0" class="active-result result-selected">1</li>
   <li id="location_select_chzn_o_2" class="active-result">3</li>
</ul>

所以secound元素不是不可见的,它根本就不存在.

Answer 1

nicholmikey的方法是正确的,但这里是你需要在selected.jquery.js中替换的代码.这只是一些简单的行(下面评论).希望这可以帮助.

AbstractChosen.prototype.result_add_option = function(option) {
  var classes, style;

    option.dom_id = this.container_id + "_o_" + option.array_index;
    classes = option.selected && this.is_multiple ? [] : ["active-result"];
    if (option.selected) {
      classes.push("result-selected");
    }
    if (option.group_array_index != null) {
      classes.push("group-option");
    }

    // THIS IS NEW ---------------
    if (option.disabled) {
      classes.push("disabled");
    }
    // ---------------------------

    if (option.classes !== "") {
      classes.push(option.classes);
    }
    style = option.style.cssText !== "" ? " style=\"" + option.style + "\"" : "";
    return '<li id="' + option.dom_id + '" class="' + classes.join(' ') + '"' + style + '>' + option.html + '</li>';
};

还有这个

Chosen.prototype.result_select = function(evt) {
  var high, high_id, item, position;
  if (this.result_highlight) {
    high = this.result_highlight;
    high_id = high.attr("id");
    this.result_clear_highlight();
    if (this.is_multiple) {
      this.result_deactivate(high);
    } else {
      this.search_results.find(".result-selected").removeClass("result-selected");
      this.result_single_selected = high;
      this.selected_item.removeClass("chzn-default");
    }
    high.addClass("result-selected");
    position = high_id.substr(high_id.lastIndexOf("_") + 1);
    item = this.results_data[position];

    // THIS IS NEW ---------------
    if(this.form_field.options[item.options_index].disabled){
      return false;
    }
    // ---------------------------

    item.selected = true;
    this.form_field.options[item.options_index].selected = true;
    if (this.is_multiple) {
      this.choice_build(item);
    } else {
      this.selected_item.find("span").first().text(item.text);
      if (this.allow_single_deselect) this.single_deselect_control_build();
    }
    if (!(evt.metaKey && this.is_multiple)) this.results_hide();
    this.search_field.val("");
    if (this.is_multiple || this.form_field_jq.val() !== this.current_value) {
      this.form_field_jq.trigger("change", {
        'selected': this.form_field.options[item.options_index].value
      });
    }
    this.current_value = this.form_field_jq.val();
    return this.search_field_scale();
  }
};

最后把它们弄灰了我添加了这个css ......

.chzn-results .disabled{color:#CCC;}

Answer 2

您需要编辑插件,如下所示:

http://bitsmash.wordpress.com/2012/10/01/making-disabled-elements-visible-with-the-jquery-chosen-plugin/

该插件读入一个select,将其从DOM中删除,并添加一个新的ul.将li添加到新ul时,会跳过标记为"已禁用"的选项

这是selected.jquery.js感兴趣的方法

AbstractChosen.prototype.result_add_option = function(option) {
  var classes, style;
  if (!option.disabled) {
    option.dom_id = this.container_id + "_o_" + option.array_index;
    classes = option.selected && this.is_multiple ? [] : ["active-result"];
    if (option.selected) classes.push("result-selected");
    if (option.group_array_index != null) classes.push("group-option");
    if (option.classes !== "") classes.push(option.classes);
    style = option.style.cssText !== "" ? " style=\"" + option.style + "\"" : "";
    return '<li id="' + option.dom_id + '" class="' + classes.join(' ') + '"' + style + '>' + option.html + '</li>';
  } else {
    return "";
  }
};

请注意,如果禁用某个选项,则不返回任何内容.走线

return "";

并输入您想要的残疾人物品的html/css.或者,您可以删除if(!option.disabled)块,并添加一个新的if(!option.disabled)块,如果禁用该项,则添加一个特殊的CSS类.

接下来,您需要确保用户单击禁用的项目时没有任何操作.您需要编辑此方法:

 Chosen.prototype.result_select = function(evt) {
  var high, high_id, item, position;
  if (this.result_highlight) {
    high = this.result_highlight;
    high_id = high.attr("id");
    this.result_clear_highlight();
    if (this.is_multiple) {
      this.result_deactivate(high);
    } else {
      this.search_results.find(".result-selected").removeClass("result-selected");
      this.result_single_selected = high;
      this.selected_item.removeClass("chzn-default");
    }
    high.addClass("result-selected");
    position = high_id.substr(high_id.lastIndexOf("_") + 1);
    item = this.results_data[position];
    item.selected = true;
    this.form_field.options[item.options_index].selected = true;
    if (this.is_multiple) {
      this.choice_build(item);
    } else {
      this.selected_item.find("span").first().text(item.text);
      if (this.allow_single_deselect) this.single_deselect_control_build();
    }
    if (!(evt.metaKey && this.is_multiple)) this.results_hide();
    this.search_field.val("");
    if (this.is_multiple || this.form_field_jq.val() !== this.current_value) {
      this.form_field_jq.trigger("change", {
        'selected': this.form_field.options[item.options_index].value
      });
    }
    this.current_value = this.form_field_jq.val();
    return this.search_field_scale();
  }
};

添加一个块,如果禁用,则返回false,然后当用户点击该项时,不会发生任何事情.