Generate an ID Number

When using MS InfoPath 2010 to enter data into a SharePoint database, I want to be able to display in the InfoPath form in a field called SBSR#, the text "SBSR" plus the next available ID number from the SharePoint database ID field.  How can I make that happen?  What formula will make that happen in the InfoPath Text Box Properties dialog box?  Everything I've tried so far produces NaN because the item hasn't been written to the SharePoint database yet.

I appreciate any ideas.

Bill
cowboywmAsked:
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Rainer JeschorCommented:
Hi,
you should simply use the "Max" function to get the current maximum ID and add 1 to it.

Detailed description of the way is already described here:
http://www.bizsupportonline.net/browserforms/autonumber-infopath-form-submitted-sharepoint-library.htm

This is not 100% fail proof, as if there are two users doing the same in the same time, the ID will be used twice. Perhaps you want to run a workflow after the item is created to verify that the correct ID is used.

HTH
Rainer
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infoalexCommented:
You need to use the "Max" function to get the current maximum ID and add 1  within InfoPath. For this you can create the SharePoint hosted WCF service, create new data source within InfoPath pointing at this service and add calculated field to the InfoPath form (select new data source)
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cowboywmAuthor Commented:
I'll give that a try.  Thanks for the feedback.
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