File properties

[Jozi68]

Hi everybody,

I urgently need a small application to do the following:
Take all files in a certain folder.
Take the first 4 characters of the file name (they are all numeric).
Insert this into the #-property of the file.

I have no idea where to start. Can someone please help me?

Jozi

[dday9]

I understand the first 2 requirements:

Take all files in a certain folder.
Take the first 4 characters of the file name (they are all numeric).

That is as simple as this:

'Loop through each file in a folder
For Each file As IO.FileInfo In New IO.DirectoryInfo("MyDirectory").GetFiles()
    'Get the first 4 characters of the file name
    Dim number As String = file.Name.Substring(0, 4)

Next

What I don't understand is your last requirement:

Insert this into the #-property of the file.

Could you elaborate on that last requirement?

[Jozi68]

The #-Property is mostly used for music (I think), to indicate the order in which mp3 files need to be played.

I hope this helps, I'm not very good at explaining things.
Thank you for your help, I have not coded in about 5 years, so I need to relearn everything.

[MMock]

I was going to ask the same question as dday9. This is an interesting problem. I found some code samples and tried them and while I can read the properties of an mp3 file I haven't been able to find anything that writes them successfully. However, I'd rather not download anything (like a DLL) I don't really need to do my own work, so maybe some of the sites would be useful to you if you took them further. Also, if I'm able to change the property as a user I shouldn't really need any extra DLL; everything a .net program would need should already be in my PC...

You might have to find out if it's a ID3v1 tag or a ID3v2 tag so you are trying the right code.

So I suggest googling "change # property mp3 vb.net" or something similar. Sorry I can't be of more help. I would've liked to see my code work!

[Sitten Spynne]

That's an ID3 tag specifically for mp3 files, it's located in the file header, and editing them from .NET is actually fairly difficult. Your best bet is to look for a tutorial by searching for something like "ID3 tags VB .NET". You'll probably get even better results if you search for "ID3 tags C#", but a lot of people don't want to see C#, as if it will give them a rash.

Now, in the Windows App or whatever they call it platform, there's some stuff to manipulate these if I remember right. But you can't use them from a plain old Desktop app.