Upload a file gwt

Hey guys,

While browsing on the internet I found a way to upload a file in a gwt app,

I managed to reimplement the code and it works just fine using formPanel,

It just happens that this file needs to be stored in a mysql database,

the problem is before the user selects the file he wants to upload, he needs to pick up two elements from 

2 combobox,

I need those informations so I can build my sql querry, How I can get those fields selected by the user 

in the  upload File servlet?

Thanks a lot,  

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