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Go Back  dBforums > Data Access, Manipulation & Batch Languages > ASP > Refresh causes double submit (post)

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  #1 (permalink)  
Old 04-05-06, 09:32
computerforce computerforce is offline
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Refresh causes double submit (post)
ASP problem:

If user refreshes the browser window, or if user clicks twice onto the submit button, SQL query is executed twice, the table gets two new rows.

I found many possible solutions, but not the complete one - every solution has it's problems.

Any good idea about how to solve the problem?
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Old 04-05-06, 10:08
Teddy Teddy is offline
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No clue, need to no more about what you're doing now.
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Old 04-06-06, 02:20
computerforce computerforce is offline
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It's the issue that happened very often at Guestbooks and Forums.

If user clicks Submit (Post) button twice (double click), or refreshes the window (waiting for the response), there will be double entry in the database (two records, same content).

How to avoid the problem? Any idea?
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Old 04-06-06, 13:34
Teddy Teddy is offline
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That's what the USER is doing. What are YOU doing when they click a button? Submission forms aren't powered by pixie dust and coffee. They need to be implemented somehow...
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Old 04-10-06, 05:54
computerforce computerforce is offline
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What does seem to be the problem?

The ASP code was already made. I am just trying to recreate it to work without any problem. Anybody has idea about the solution? Anybody experienced double submit by clicking the button twice or by refreshing the window?
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Old 04-10-06, 10:29
Teddy Teddy is offline
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I think the problem is you don't know how that code works, and we can't help you if you can't describe what the code does.

ProTip: "It submits things" is not a valid answer.
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Old 04-10-06, 15:20
rudra rudra is offline
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Quote:
Originally Posted by Teddy
I think the problem is you don't know how that code works, and we can't help you if you can't describe what the code does.

ProTip: "It submits things" is not a valid answer.
Hi Teddy,
I have experienced this same problem once.

The first page contain -
A textfield and a button in form tag.
Region.asp
Quote:
<form name="form1" method="post" action="regionupdate.asp">
<input type="text" name="textfield" value="">
<input type="submit" name="Submit" value="Submit" onclick="<% SESSION("update_ok")=true%>">
</form>
And Regionupdate.asp
Quote:
I am not writing the whole code here just few lines...

conn.BeginTrans
conn.Execute "INSERT INTO REGION(r_code,r_name) VALUES ('" & strcode & "','" & trim(Request.Form("textfield")) & "')"

conn.CommitTrans
If a user after coming back to the first, presses the refresh button the previous data is sent to the server.
I dealt with this problem by using clientside validation javascript.
Quote:
window.document.location.replace("url")
writing it at the head tag of the first page.
I hope to hear more solutions to this problem.
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Old 04-12-06, 10:44
oliflorence oliflorence is offline
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Anoterh way to do it would be to use 3 pages.
page1.asp has the form which sends the data to page2.asp, a purely asp page which insert the record and sent redirect to page3.asp to thank the user, if page 3 if refreshed it doesnt' actully do any thing, if the browser back is used you need to block that by adding a script to page 1:
<body onload="javascript:window.history.forward(1);">

As for the button clicked twice you can disable it or hise once clicked using javascript

Hope this helps
Olivier
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Old 04-25-06, 15:52
Smart Smart is offline
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Set the smart navigation property to true
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