Tooltip winControl gets lost somewhere???

Question

Please find below a copy of my Watchlist. I am using Win 8 Release Preview, VS 2012 Express. If retrieved via getElementsByClassName().wincontrol, the tooltip object is found but if retrieved by getElementById().wincontrol, it fails. Please help.

  container.getElementsByClassName('tooltip')[0].id                                      "aZ0_0Tooltip"
+container.getElementsByClassName('tooltip')[0].winControl {...}                 Object, (Tooltip_ctor)

  document.getElementById("aZ0_0Tooltip").winControl                                 undefined

Answer 1

Do you have more than one object with the same ID "aZ0_0Tooltip" in the page?

Anyway, this might be a bug in Release Preview... You should migrate to Windows 8 RTM and try to reproduce this.

Cheers,
Caio Proiete

 

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Caio Proiete
Microsoft MVP, MCT, MCPD, MCTS, MCSD
http://caioproiete.net

Answer 2

Thanks for the reply, Caio. First thing I checked was duplicate id. Definitely a bug, as I could work around the problem by using div.setAttribute('data-win-control','WinJS.UI.Tooltip'); and div.setAttribute('data-win-options', etc.). That way the WinJS.UI.processAll properly catches the dynamically created control, whereas var tooltip = new WinJS.UI.Tooltip(div) has problems. I will update to the release bits this weekend.