openKeys becomes undefined in Menu.componentWillReceiveProps

[williamkhshea]

I have got a SubMenu like this:

      <div>
        <Menu mode="horizontal" id="nav">
          <SubMenu title="John">
            <MenuItemGroup key="actions" title="Actions">
              <Menu.Item key="createCompany">
                <a href="#" >Create Company</a>
              </Menu.Item>
              <Menu.Item key="signOut">
                <a href="#" >Sign Out</a>
              </Menu.Item>
            </MenuItemGroup>
          </SubMenu>
        </Menu>
      </div>

For some reason it triggers the componentWillReceiveProps immediately after it first render, and openKeys is undefined in nextProps so it passes on causing an error in isOpen in SubMenu

I spent a couple of hours and still cannot reproduce in it online. Adding a guard clause against undefined openKeys (and for selectedKeys, just in case) should solve the issue.

I will submit a PR now.

[mmacedoeu]

I have a similar problem with undefined openKeys:
http://codepen.io/mmacedoeu/pen/EZrpdX

How can I test your solution ?

[benjycui]

@mmacedoeu sorry, it seems that your CodePen is broken.

And you can try to upgrade to the latest rc-menu.