messagebox on file download

apurva · #1 (**permalink**) March 23rd, 2009, 03:15 AM

I am new to ASP.net and I am designing the website is ASP.NET c#

My query:
I would like to get the pop up message box after clicking on the hyperlink while downloading the file that shows whether the file should be opened, saved or cancelled and the file size, duration for file download etc.

Pl. let me know the answer of this bit fast.

Thanking you in advance.

Apurva

dparsons · #2 (**permalink**) March 23rd, 2009, 02:42 PM

The implementation will vary but the process is the same: use a JavaScript confirmation box.

So you might do something like this:

javascript Code:

function GoToDownload()
{
 
   if(confirm('Do you want to download this file?'))
   {
       document.location = 'file.exe';
       return true;
   }
   else
      return false;
 
}

then the html:

<a href='#' onClick="return GoToDownload();">Download File</a>

If i were doing this in a Server control like a button I would probably do something like:

btn.Attributes.Add("onClick", "return confirm('Do you want to download this file?')");

So then when the user clicks on my button they will see the confirmation box and if they click OK the buttons Serverside event is triggered otherwise nothing happens.

hth.
-Doug

peace95 · #3 (**permalink**) March 23rd, 2009, 05:01 PM

hmmmm......dparsons, I thought apurva was wanting to duplicate the small page that pops up when a customer request, by clicking the download hyperlink. Did I not interpret that correctly?

peace95

dparsons · #4 (**permalink**) March 23rd, 2009, 07:19 PM

Ahhh, my mistake. Thats what i get for reading over a post to quickly! After carefully re-reading I assume you are probably linking to a file that the browser understand (pdf, jpg, xls, etc) and, instead of downloading the file, it is opening it directly. Am I right? If this is the case you will need to write a bit of custom code:

csharp Code:

Response.ContentType = "image/jpeg";
Response.AppendHeader("Content-Disposition","attachment; filename=somejpeg.jpg");
Response.TransmitFile( Server.MapPath("~/somejpeg.jpg") );
Response.End();

You will obviously need to modify this for your purposes but take care to modify the ContentType property so that it matches the type of file you are sending. You can find a fairly good list in the last post of this thread: http://www.daniweb.com/forums/thread38650.html

hth.
-Doug

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