Prevent ASP.NET page to resend data on refresh?

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Asaf - 12 Dec 2007 12:44 GMT

Hi,

How can I prevent from an ASP.NET page to resend all the data again when the
user press the Refresh button or F5 on the browser?

Thanks in advanced,
Asaf

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Peter Bromberg [C# MVP] - 12 Dec 2007 12:50 GMT

One easy way to handle this is to set a Session variable the first time the
page is posted. You can check for the presence of this on any refresh and
abort resending.
-- Peter
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
MetaFinder: http://www.blogmetafinder.com

> Hi,
>
[quoted text clipped - 3 lines]
> Thanks in advanced,
> Asaf

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Asaf - 12 Dec 2007 16:31 GMT

Hi Peter,

I misunderstood your solution, will be much appreciated if you can post an
example.

Asaf

> One easy way to handle this is to set a Session variable the first time the
> page is posted. You can check for the presence of this on any refresh and
[quoted text clipped - 11 lines]
> > Thanks in advanced,
> > Asaf

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Steven Cheng[MSFT] - 13 Dec 2007 02:57 GMT

Hi Asaf,

For prevent duplicate form submitting, there does exists some session flag
based approach, here are some web thread discussing on this:

#Preventing Duplicate Record Insertion on Page Refresh
http://aspalliance.com/687

#Prevent Duplicate Form Posting
http://forums.asp.net/p/447620/471229.aspx#471229

http://forums.asp.net/p/1190997/2045619.aspx

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead

This posting is provided "AS IS" with no warranties, and confers no rights.

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>References: <AAF68CC1-A3F1-4C67-BECB-6EF11A48681C@microsoft.com>

<D0F0C4F4-C693-42E6-AA2C-607E102464D2@microsoft.com>

>Subject: RE: Prevent ASP.NET page to resend data on refresh?
>Date: Wed, 12 Dec 2007 08:31:03 -0800
[quoted text clipped - 21 lines]
>> > Thanks in advanced,
>> > Asaf

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Larry Bud - 12 Dec 2007 13:25 GMT

> Hi,
>
> How can I prevent from an ASP.NET page to resend all the data again when the
> user press the Refresh button or F5 on the browser?

Do a response.redirect after your data is handled to the same page.

For example, if you're letting the databind do all the work, do a
response.direct on a datasource inserted (or updated) event.

If you're handling the data manipulation in code, do it after you do
all your work.

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Prevent ASP.NET page to resend data on refresh?

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