Handling large file upload

[Thomas Due]

Hi,

I am writing an ASP.NET project where I allow users to upload files to
the server. I have changed to web.config to allow a total file size of
100MB. My problem is that if the total file size exceed this amount the
page simply stops works, and I get a "Server unreachable" error.

Is there any way to handle this, so I am able to present the user with
a nice error message telling him that the maximum file size has been
exceeded.

Furthermore, it is my understanding that the server uploads all files
to memory before I get to handle them with HtmlInputFile. Is there any
way to perform some checking beforehand, by using http header handle or
something?

Examples will be appreciated.


Thank you in advance,

--
Thomas Due
Software Developer
Scanvaegt Nordic A/S

[vrushal]

hi

add httpruntime tag in WEB Config .. and add propery
maxrequestlength.
default value for maxrequestlength is around 4 MB u have
to change it..

by setting value for maxrequestlength will do.


vrushal

>-----Original Message-----
>Hi,
>
>I am writing an ASP.NET project where I allow users to

upload files to

>the server. I have changed to web.config to allow a total

file size of

>100MB. My problem is that if the total file size exceed

this amount the

>page simply stops works, and I get a "Server unreachable"

error.

>
>Is there any way to handle this, so I am able to present

the user with

>a nice error message telling him that the maximum file

size has been

>exceeded.
>
>Furthermore, it is my understanding that the server

uploads all files

>to memory before I get to handle them with HtmlInputFile.

Is there any

>way to perform some checking beforehand, by using http

header handle or

>something?
>
>Examples will be appreciated.
>
>
>Thank you in advance,
>
>--
>Thomas Due
>Software Developer
>Scanvaegt Nordic A/S
>.
>

[Jos Vernon]

Thomas

> Furthermore, it is my understanding that the server uploads all files
> to memory before I get to handle them with HtmlInputFile. Is there any
> way to perform some checking beforehand, by using http header handle or
> something?

You need to use a third party product to do this type of thing. The fact
that large uploads are cached in memory will likely cause ASP.NET to
recycle/crash.

We do one solution and I believe there is at least one other out there -
though of course not as good as ours ;-).

Best Wishes

Jos

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jos vernon
[url]http://www.websupergoo.com[/url]
..NET Image Components & Consultancy
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