Prevent ASP.NET page to resend data on refresh?

Asaf · Joined: 08 Aug 2007 Posts: 10

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

Archived from group: microsoft>public>dotnet>framework>aspnet

Peter Bromberg [C# MVP] · Joined: 31 Oct 2007 Posts: 22

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

"Asaf" wrote:

> 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
>

Larry Bud · Joined: 08 Aug 2007 Posts: 1

On Dec 12, 7:44 am, Asaf wrote:
> 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.

Asaf · Joined: 08 Aug 2007 Posts: 10

Hi Peter,

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

Asaf

"Peter Bromberg [C# MVP]" wrote:

> 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
>
>
> "Asaf" wrote:
>
> > 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
> >

Steven Cheng[MSFT] · Joined: 08 Aug 2007 Posts: 196

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.

--------------------
>From: =?Utf-8?B?QXNhZg==?=
>References:

>Subject: RE: Prevent ASP.NET page to resend data on refresh?
>Date: Wed, 12 Dec 2007 08:31:03 -0800
>
>Hi Peter,
>
>I misunderstood your solution, will be much appreciated if you can post an
>example.
>
>Asaf
>
>"Peter Bromberg [C# MVP]" wrote:
>
>> 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
>>
>>
>> "Asaf" wrote:
>>
>> > 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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