Newbie: How to upload and save images using ASP.NET web forms (C#)

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charliewest - 16 Jul 2005 13:05 GMT

Hello -

I need to upload images in my web application using ASP.NET web forms
(written in C#). Since i have never done this before, i am unsure what is the
best method.

I assume there are two options:

1). Upload the images and save the files directory to the windows file
system. However, i assume this poses a security risk, as the file directory
will require write permissions.

2). Save the images (as objects?) in the SQL SERVER database.

Can anyone suggest the best way to do this? And, if possible, point me to
some sample code or artciles which explain how to do this.

Thanks!

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Daniel Walzenbach - 16 Jul 2005 16:27 GMT

Charlie,

check out the following article:

http://www.codeproject.com/aspnet/fileupload.asp

I prefer to save files in the database but it depends on your needs.

If you need to save hundred thousands of files and decide that you want to
save them on your hard disk make sure to distribute them on different
directories. What you could do is that you assign a guid to each file and
create your directory structure accordingly.

Example:

You have five files with the following guids

0A59E8D6-0AE5-475B-8698-814C2C712029

F16CE1B1-56D0-42E6-9463-A58D553CC289

D90C27C7 -8BD9-4F47-8CFE-DE9D240AD136

370B6080-DF06-4DDE-BB5E-85264B8AE48B

861DC387-FDC7-4A4F-B0C3-9EA6734A562A

You could now create a directory like the following:

0A59E8D6\0AE5\475B\8698\814C2C712029

F16CE1B1\56D0\42E6\9463\A58D553CC289

D90C27C7 \8BD9\4F47\8CFE\DE9D240AD136

370B6080\DF06\4DDE\BB5E\85264B8AE48B

861DC387\FDC7\4A4F\B0C3\9EA6734A562A

HTHs

Daniel

> Hello -
>
[quoted text clipped - 16 lines]
>
> Thanks!

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Newbie: How to upload and save images using ASP.NET web forms (C#)

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