1、在下拉框的选项中添加全选这个选项 var newItem = document.createElement("option"); var newItemText = document.createTextNode("全选"); newItem.appendChild(newItemText); select.appendChild(newItem); 2、为选择框绑定onchange事件,触发onchange则判断选项的内容是不是全选,如果是调用check_all(select_id...
var o=document.getElementById('id').getElementsByTagName('option'); var all=""; console.log(o[1]); for(var i=0;i<o.length;i++){ if(o[i].selected){ all+=o[i].value+","; } } all = all.substr(0, all.length -1);//去掉末尾的逗号 $("#bumen").val(all);//赋值给隐...
//新版,直接给select添加option$("#id").append(newOption("Jquery",10001,false,true));//或者$("#id").append("<option value='10001'>Jquery</option>"); 3.获取或设置值:select2(“val”)(老版);$(“select”).val()(新版) 推荐使用 代码语言:javascript 复制 varres=$("#id").select2("d...
on("select2:select", function(event) { var values = []; // copy all option values from selected $(event.currentTarget).find("option:selected").each(function(i, selected){ values[i] = $(selected).text(); }); // doing a diff of old_values gives the new values selected var last ...
//新版,直接给select添加option $("#id").append(new Option("Jquery", 10001, false, true)); //或者 $("#id").append("<option value='10001'>Jquery</option>"); 1. 2. 3. 4. 3.获取或设置值:select2("val")(老版);$("select").val()(新版) ...
tabindex="-1" aria-hidden="true"> <option value="g">Self Gallery</option> <optgroup label="SlideShow Category"> <option value="s">(s) All</option> <option selected="selected" value="s|building">(s) building</option> <option value="s|homepage">(s) homepage</option> <option value...
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[ OPTION ( <query_hint> [ ,...n ] ) ] <query_expression> ::= { <query_specification> | ( <query_expression> ) } [ { UNION [ ALL ] | EXCEPT | INTERSECT } <query_specification> | ( <query_expression> ) [...n ] ]
class="js-data-example-ajax form-control" data-width="200px" name="select4"> <option value="" >请选择</option> <!-- 默认值 --> <option value="3620194" selected="selected">请选择2</option> </select> <a class="button">按钮</a> <input type="submit"> </form> <hr> </body>...
return option; }; Results.prototype.bind = function (container, $container) { var self = this; var id = container.id + '-results'; this.$results.attr('id', id); container.on('results:all', function (params) { self.clear(); ...