Hello hoang,
I have the same issue and started a thread here: http://social.technet.microsoft.com/Forums/en-US/sharepoint2010customization/thread/9c683b78-f742-4746-a658-7f6934e022f2
The first response was that there is no workaround, but then I found a possible solution here: http://www.infopathdev.com/forums/t/21972.aspx
I have not had ...