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I'm working on SharePoint 2010 (using a visual web part). Is there any way to prevent duplicate inserts in a list when a page is refreshed using F5, without using session?

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The traditional PAR routine (POST And Redirect) works to get rid of these problems.

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  • thx, but it is possible to accopmlish that in the same page without redirection
    – Mahmoud
    Commented Feb 3, 2011 at 9:18
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    I'm pretty sure you could post and redirect back to the same page. The redirect will be treated as a new request, not a postback.
    – Andy Burns
    Commented Feb 3, 2011 at 9:29
  • @Andy i want to keep some value soo i can show message for users like (email sent or not sent ...) how can i do this whene refreshing the same page.
    – Mahmoud
    Commented Feb 3, 2011 at 18:14

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