Reactjs 语义ui react下拉组件始终保持打开状态

我试图在菜单组件（Meteor应用程序）中使用语义ui react下拉组件。组件始终保持打开状态，最重要的是，完全在菜单组件内部呈现

代码如下：

  render() {
const {
  documents, columns, loading, className,
} = this.props;
const options = [
  {
    key: 'default',
    value: 'default',
    text: 'Default grid',
  },
  {
    key: 'edit',
    value: 'edit',
    text: 'Edit grid',
  },
];
return (
  !loading ? (
    <div className="eb-list" >
      <div className="eb-list-toolbar" >
        <Menu borderless icon="labeled" >
          <Menu.Item name="add" onClick={this.addDocument}><Icon name="add" />Nuovo</Menu.Item>
          <Menu.Item name="edit" onClick={this.editDocument}><Icon name="edit" />Modifica</Menu.Item>
          <Menu.Item name="copy"><Icon name="copy" />Duplica</Menu.Item>
          <Menu.Item name="mass"><Icon name="tasks" />Modifica di massa</Menu.Item>
          <Menu.Item name="delete" onClick={this.removeDocuments}><Icon name="delete" />Elimina</Menu.Item>
          <Menu.Item position="right" header name="className" >{className}</Menu.Item>
          <Dropdown item icon="" open={false} trigger={<Icon name="grid layout" />} options={options} />
        </Menu>
      </div>
      <div className="eb-list-content" >
        <AutoSizer defaultHeight={200} defaultWidth={500} >
          {({ height, width }) => (
            <Table
              data={documents}
              columns={columns}
              ref={(t) => { this.handleTable = t; }}
              onDoubleClickHandler={this.handleDoubleClick}
              height={height}
              width={width}
            />
        )}
        </AutoSizer>
      </div>
    </div>) : <Loading />

我不知道我做错了什么。我观察到子组件API的相同行为

---

有人能帮我吗

解决了

我忘了在custom.semantic.json中包含下拉列表的定义

{
    "definitions" : {
      "site": true,
      "menu": true,
      "icon": true,
      "dropdown": true,
      "modal": true,
      "list": true
    },
    "themes": {
      "amazon"     : false,
      "basic"      : true,
      "bookish"    : false,
      "bootstrap3" : false,
      "chubby"     : false,
      "classic"    : false,
      "default"    : true
    }
}

现在它的工作如预期

{
    "definitions" : {
      "site": true,
      "menu": true,
      "icon": true,
      "dropdown": true,
      "modal": true,
      "list": true
    },
    "themes": {
      "amazon"     : false,
      "basic"      : true,
      "bookish"    : false,
      "bootstrap3" : false,
      "chubby"     : false,
      "classic"    : false,
      "default"    : true
    }
}