How to use Sequence in Forms

Hi,
I have an Empno Column, At the time of Opening a Form The Empno Will be displayed by using Sequence.
If the User doesn't save the Form Then the Empno Generated number will be changed.
How to write the code to get sequence numbers at Empno columns by using Sequence?
Thanks & Regards,
Hari Babu

Ok, I understand now your question. Since the oracle sequence is commited in a separate transaction, it is not possible to get the no-gap sequence, considering your example. In the other hand, if you don't commit immediately, than two concurrently opened forms could use the same sequence number, so you'll get the duplicate key!
If you're sure that this couldn't happen, you can manage your own sequencing, storing them in another table. Let's say you reached seq 999: entering the form, you'll read from your sequence table 1000, increment to 1001, and assign it to empno, but without commiting. Next time, you'll get the same number, until you commit form, and at the same time, change in seq table. So another will get 1001.
Downside of this approach are, as mentioned before, concurrent sessions, which will get the same sequence.

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would you kind enough to help me ? thanks!!!
Message was edited by:
moonsoft

Hi Moonsoft,
I have already answered this query in the other post at Re: how to link more than one links in portlet?(jsp develop)
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There are three ways of achieving it, one i will say its pretty straightforward and covers the basic of Infopath Forms Development
1)Populate Fields From Infopath Form at the time of Publishing.
The moment you done with your form and to publish you click FIle>Publish>SharePoint Server >Enter the Url of Site> Then Click Next twice upto a point where wizard asks "The fields listed below will be available as SharePoint Columns" ,
Click Add, select the placeholder in myfields for Person Field , expand the "person" group field and choose "AccountId", give the name to column(this will be SharePoint List Column Name) and for function select "first" and then
click next and Finish.
And use this field in Designer Workflow to send email.
2)Second way is to write VSTA based C# code on click of your Submit action on the form and upload and activate this form on form library via Central Admin.
3)Now other way of doing this is via Event Recievers.
Every infopath Form is an XmL File so on ItemAdded event you can extract its content and implement email sending c# code there:-
http://www.bizsupportonline.net/infopath2007/how-to-use-sharepoint-event-handler-object-model-submit-data-infopath-form-sharepoint-list.htm
Mark as Answer if helped!! To be or Not to Be..The question is this only......

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