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[Matt]

Hey guys, it has been a while since i last posted here on this forum... :P
But now I could really use some help :S

See, im makeing this antivirus in visual basic, which has this... kinda security system i invented xD

But when they register the product, i would like the app to access my ftp server, open the "registered.txt" file, and then add the serial that they entered to registered it...

So that when an update comes, they wont have to register the app over again :S


So the main question is, how do i edit a txt file from my ftp server, from my vb app?



Any help would be appreciated ^^

[smashapps]

I was writing you an example but I couldn't be bothered. You can Upload and Download a file using a Webclient.

First, Import System.Net

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Imports System.Net

Declare Webclient

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 Dim client As New WebClient

Don't declare it in a Sub Function.

Next to Download the File, We use DownloadFile, also I added a RichTextBox so you can see the file and make changes and save it.

Create a Button and then on the Button1 click add this:

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Try
            client.DownloadFile("http://smashapps.net/test.txt", My.Computer.FileSystem.SpecialDirectories.Desktop & "/test.txt")
            RichTextBox1.LoadFile(My.Computer.FileSystem.SpecialDirectories.Desktop & "/test.txt", RichTextBoxStreamType.PlainText)
        Catch ex As Exception
            MsgBox(ex.Message)
        End Try

We use the WebClient we declared, specify the address of the file, and then the location to save it. Then with the RichTextBox we don't need any dialog we use the LoadFile method but just specify that we are loading it as PlainText (otherwise it won't load as it's supposed to load Richtext not PlainText by default).

With the MsgBox, if there is an error the exception is shown to us rather then the debugging stopped etc

You can Upload a file using the Webclient and use UploadFile, but you need to set the Credentials, I've always hated FTP. You can set the credentials with:

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client.Credentials = New NetworkCredential("username", "password")

If I've helped please +rep

[Martin]

WOW i think that was the first explained in depth in Tutorial Requests

[Dummy1912]

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client.Credentials = New NetworkCredential("username", "password")

You must be very very careful with this part
i think you must use a hard encrypt for this.
or they can access your server.

and nice tut smashapps :lol:

[smashapps]

I didnt actually know it was a tutorial request otherwise I would of done more lol guess I had nothing to do I decided to help out, and yes listen to Dummy encrypt your applications or someone who see everything, you never want that to happen, even your email address :P