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Importing long CSV file in asp.net

Posted on 2013-01-10
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Last Modified: 2013-01-16
I have option in my web application, there user can upload a csv list of users. Total number of users can be in 15,000 or 1 million.

We I run the import process in the same thread then I gets Request Timeout error.

what should I do so that I let the user import this much big csv list.
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Question by:yadavdep
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3 Comments
 
LVL 42

Accepted Solution

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sedgwick earned 250 total points
ID: 38762256
first compress the csv list to binary stream, secondly increase the timeout in web.config to the specific page:


<location path="<the-page>.aspx">
        <system.web>
                <httpRuntime executionTimeout="250"/>
        </system.web>
</location>

FYI, ExecutionTimeout specifies the maximum number of seconds that a request is allowed to execute before being automatically shut down by ASP.NET.
The default value for this attribute has been set to 90 seconds in ASP.NET 1.x and was increased to 110 seconds in ASP.NET 2.0.
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LVL 39

Expert Comment

by:Pratima Pharande
ID: 38762261
see here are some options .. which may help you

http://www.codeproject.com/Questions/212510/how-import-CSV-file-in-asp-net
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LVL 42

Expert Comment

by:sedgwick
ID: 38762274
by default, iis7 supports up to 30MB files, you can increase this number to over 100MB using the following command:
Adjusting File upload size in IIS7

if you are using asp FileUpload control, here's a tutorial how to achieve this:
FileUpload tutorial

using old fashioned input type="file":
Upload file old-fashioned
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