Upload multiple files where upload has ID

Question

I have a page which has multiple file upload inputs whcih have ID's and Names relevant to the document type being uploaded which look like:

<input type="file" name="postedFile_37" id="37">
<input type="file" name="postedFile_23" id="23">

In my controller, how can I identify the name or id of the upload so I can assign a document to the type being uploaded in the DB?

I can see for example that if I do

Request.Files[i]

I can see the name of the index but I can't get the value to save out. How can I get either the name or ID from the posted file upload?

c# is a little broad. Web Forms? MVC? Something else?

user247702
– user247702

2013-06-07 13:55:53 +00:00
Commented Jun 7, 2013 at 13:55 — user247702
– user247702, Commented Jun 7, 2013 at 13:55
I would guess at MVC, "In my controller" ^_^

Sean Airey
– Sean Airey

2013-06-07 13:58:14 +00:00
Commented Jun 7, 2013 at 13:58 — Sean Airey
– Sean Airey, Commented Jun 7, 2013 at 13:58

Stan · Accepted Answer · 2013-06-07 14:01:56Z

2

Try adding hidden fields next to each of the files so you have two arrays - first is file itself and second is id.

<input type="hidden" name="fileId" value="37" />
<input type="file" name="file" />
<input type="hidden" name="fileId" value="38" />
<input type="file" name="file" />

.

public ActionResult Test (string[] fileId, List<HttpPostedFileBase> file)
{
    int i = 0;
    foreach (var f in file)
    {
        var id = fileId[i]; // this is your file id, f is file
        i++;
    }
}

answered Jun 7, 2013 at 14:01

Stan

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2 Comments

Codesight Over a year ago

I did think about doing this but wondered if there was a way of getting the ID off the upload. Thanks.

Stan Over a year ago

AFAIK it's not possible by HTML standards. More info here: stackoverflow.com/questions/7470268/html-input-name-vs-id

Alexander · Accepted Answer · 2013-06-07 14:06:39Z

0

If you use the ASP.NET FileUpload control instead of the plain HTML control, you can access them individually (by ID) in the PostBack.

answered Jun 7, 2013 at 14:06

Alexander

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1 Comment

Codesight Over a year ago

I'm using MVC Razor I don't really want to mix webforms and mvc If I can help it.

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