uploading multiple file types ........

jack_hilary · September 25th, 2009, 04:32 AM

Hello sir,
Well I have 1 more problem

As in chapter 13:Linq when dealing with uploading files related to issue "Please upload valid .jpg file" .The code that you suggested is as below

Code:

protected void ListView1_ItemInserting(object sender, ListViewInsertEventArgs e)
	{
		FileUpload FileUpload1 = (FileUpload)ListView1.InsertItem.FindControl("FileUpload1");
		if (!FileUpload1.HasFile || !FileUpload1.FileName.ToLower().EndsWith(".jpg"))
		{
			CustomValidator CustomValidator1 =
								 (CustomValidator)ListView1.InsertItem.FindControl("CustomValidator1");
			CustomValidator1.IsValid = false;
			e.Cancel = true;
		}
	}

Quote:

If i try to modify this code to accept multiple file types like .jpeg , .gif etc. then it does not work and this code seems to be unmodifiable. I have also tried the if - else if constraint, but it does not work.
So how multiple file types can be attached with the single FileUpload control.
But it should not accept any .txt , .doc or any other document file.
However there would be only one file at a time but what I wish is that it supports multiple file types.

Imar · September 25th, 2009, 04:54 AM

Hi there,

Please use Quotes only when you quote other people's text; not for your own text. Looks very confusing

Quote:

and this code seems to be unmodifiable

Heuh? You can simply modify it in the editor. You can add an extra expression for other types. E.g.:

FileUpload1.FileName.ToLower().EndsWith(".jpg") ||
FileUpload1.FileName.ToLower().EndsWith(".gif"))

Imar

jack_hilary · September 25th, 2009, 05:18 AM

Yes it seems easy but it is getting me problem. I have tried the code in both of the fashions like

Code:

if (!FileUpload1.HasFile || !FileUpload1.FileName.ToLower().EndsWith(".jpg")
            || !FileUpload1.FileName.ToLower().EndsWith(".gif"))

and

Code:

if (!FileUpload1.HasFile || FileUpload1.FileName.ToLower().EndsWith(".jpg") 
           || FileUpload1.FileName.ToLower().EndsWith(".gif"))

But always the code inside the if statement runs when I try to upload a .gif file...

Imar · September 25th, 2009, 05:22 AM

You're forgetting the ! operator. Also you need to combine the two file types. E.g.:

if (!FileUpload1.HasFile || (!FileUpload1.FileName.ToLower().EndsWith(".jpg")
&& !FileUpload1.FileName.ToLower().EndsWith(".gif")))

jack_hilary · September 25th, 2009, 05:58 AM

How stupid I am, I have been dealing in C, C++ and Java for last 3 years but I could not guess about && operator. Thanks for that.

Now Please tell me ,the most important thing for me. As you about your site PlanetWrox.com there is session about gig pics. It deals with images and description and tooltips etc. Now can it be modified to provide the link like "Buy" to the end user and on clicking it the product detail is stored in the billing information and on completion the email is sent to the email address of the user about the product so that it becomes like e commerce.

I am still working on CreateUserWizard as it seems to be hard working with it on email issue.

once again thanks for last reply

Imar · September 25th, 2009, 05:44 PM

Hi there,

Ecommerce is too big a topic to explain over a few simple posts. My advice, as in other replies, is to get a book (or multiple books) on the topic. My Instant Results book shows you the basic steps, but you'll find many other books on eCom at your favorite book store / site.

Cheers,

Imar