download images (incrementing url) ?
 

I'm not sure if this is something Visual Basic's for;
if not, would it be simplest with a scripting language or command prompt or what?

I want to download a bunch of images to harddrive from internet
all images have same URL exept the number increases
for example I would do something like

if you want a program that will do that you can get a crawler. this is one i have tried http://www.download.com/Advanced-Sit...-10155161.html

no programming language has the ability to go to a specified url & save it to computer?
The URLs are the URLs of the images; not of the pages that contain the images... is a web crawler necessary for this?

try scripitng with wget

All you need is the URL. You can use the System.Net.WebClient.DownloadData() method to fill a byte array with the file contents. You can then do whatever with this, including saving it to disk, manipulating the data, or whatever you want to do. If you need to do this without blocking on the current thread, you can use the DownloadDataAsync() method instead (don't call the blocking version in multiple threads simultaneously; it will throw an exception). Both links describe the methods; the first one also has code examples. I don't feel like typing a lengthy explanation of asynchronous I/O right now, but if you're familiar with callback functions (or whatever VB calls 'em), then it's pretty easy to use non-blocking I/O (though you really don't need it for this, especially if all the files are fetched from the same server).

For WebClient.DownloadFile Method, I don't know where to start; a console or windows application?
can I use this method within either one?

If I do windows form,
would I just replace Public Class Form1 with Public Class WebClient or do I have to edit the "meta-file" with
<ComVisibleAttribute(True)> _
Public Class WebClient
Inherits Component


Also the only way I know how to trigger the method(download file) is through a button declared as Private Sub Button1_Click()... but can I declare Public Sub DownloadFile() inside of this^ Private ButtonClick Sub ?

Then would I just stick the method inside of an incrementing loop ?
For example

Is doing it through console or wget script is simpler (requires less steps) ?

Should be able to, yeah. As for which is best, it depends on your needs. I suspect (from the fact the images are named with sequential strings) that it will function in a batch manner; as such, a console-mode program is just fine. If you want to prompt the user for the base URL or base filename (before the appended number), then a Windows forms app might be better, but you can certainly do this in a console program as well, whether through the use of command-line parameters, or input prompts. Likewise, a forms app can run without any input from the user (besides starting the app, of course).
You don't inherit from the class (well, not unless you're planning on changing its feature set). In this case, inheritance is unnecessary; all you need to do is instantiate a WebClient object, and call the appropriate method. All that other stuff is not needed, and will only serve to confuse matters.
If it's a forms app, and you want user input (say, web URL, or base filename), then doing it from a button click handler is fine (preferred, in fact). If you are hard-coding this, reading it from a configuration file, or otherwise determining it without user intervention, then you can do it in the form's load event handler (for a forms app) or in the main method (not sure what VB calls it, as I've not done console apps in VB, but it's probably main).
Yup, much as you've done. All you really need to do in the loop is a) build the URL (URI) string, b) build the local filename string, and c) call the DownloadFile() method. I suggested DownloadData() because I figured you might want to do processing before saving, but if not, DownloadFile() is easier to use (especially since you don't need to determine the file size before starting the download).
Dunno about wget, as I've not used it, but via console, it's pretty simple. See my points above about console vs forms versions.

brought the error "Conversion from string "ring" to type 'Double' is not valid "
I didn't declare any double variables so don't know how this happens

I also tried converting the incrementing integer("times") to string, but didn't help

would turning option strict or ecplicit off help ?


thanks

Uh, it looks like you're still using the integer "times" to me:
Shouldn't this be:

yeah thanks for pointing out hehe

I just don't know how to execute it ("debug" is disabled),
I did it as a console app (just a *.vb file, nothing else)