dojox CheckedMultiSelect get checked value返回undefine

Question

请参阅下面的示例。控制台使用＆＃34; undefined＆＃34;来记录数组。从下拉列表中检查项目时的对象。获取一系列已检查项目的正确方法是什么？ http://jsfiddle.net/4L3sksmt/4/

＆＃13;

＆＃13;

require(['dojox/form/CheckedMultiSelect'],function(CheckedMultiSelect){
var groupCheckedMultiSelect = new CheckedMultiSelect ({
      id: "groupChkMultiSelect",
      dropDown: true,
      multiple: true,
      label: "Group", 
      onChange: function(evt){
      	console.log(evt);//output = undefined
      }
  }, 'GroupDiv');
	groupCheckedMultiSelect.addOption({'label':'One'});
	groupCheckedMultiSelect.addOption({'label':'Two'});
	groupCheckedMultiSelect.addOption({'label':'Three'});
	groupCheckedMultiSelect.addOption({'label':'Four'});
	groupCheckedMultiSelect.addOption({'label':'Five'});
	groupCheckedMultiSelect.startup();
});

＆＃13;

＆＃13;

＆＃13;

Answer 1

返回undefined值，因为您没有设置选项的值。选项的正确格式为{ label : 'One', value: 1 }。下面的代码现在应该正常工作。

require(['dojox/form/CheckedMultiSelect'],function(CheckedMultiSelect){
var groupCheckedMultiSelect = new CheckedMultiSelect ({
      id: "groupChkMultiSelect",
      dropDown: true,
      multiple: true,
      label: "Group", 
      onChange: function(evt){
      	console.log(evt);//output = undefined
      }
  }, 'GroupDiv');
	groupCheckedMultiSelect.addOption({'label':'One', value: 1});
	groupCheckedMultiSelect.addOption({'label':'Two', value: 2});
	groupCheckedMultiSelect.addOption({'label':'Three', value: 3});
	groupCheckedMultiSelect.addOption({'label':'Four', value: 4});
	groupCheckedMultiSelect.addOption({'label':'Five', value: 5});
	groupCheckedMultiSelect.startup();
});