[Help]deleting / replacing

Posts 1–15 of 16 · Page 1 of 2

Few questions for you.

1- How can i delete all files in folder without deleteing folder?
- It doesn't work with kill("...")

2- How can i replace files
- Ex. I want to replace 1.jpg with 2.jpg

Thanks

Answer will get thanked and repped.

1. for each file in directory
io.file.delete(path)
next

(That sure isn't the fulll code -.-")

2. Delete current file, move/copy new one

Either way, Io.File Class is what you need.

Hmmz

[php]
Dim directoryLocation As String = C:\MyExamples\HelpMTH\LOL
For each file As String in FileIO.FileSystem.GetFiles(directoryLocation, FileIO.SearchOption.SearchTopLevelOnly)
IO.File.Delete(file)
Next
[/php]

That'll delete all files in a given directory at the top level only (won't scan subfolders)

To replace, use IO.File.Replace and use the info Visual Basic provides to figure out what goes where.

1- How can i delete all files in folder without deleteing folder?
- It doesn't work with kill("...")

Get all files in folder, delete all those files. The Kill(...) command is for terminating a process only - it has nothing to do with your file system

Code:

Imports System.IO

For Each item As String in Directory.GetFiles("YourFolderHere"))
    File.Delete(item)
Next

2- How can i replace files
- Ex. I want to replace 1.jpg with 2.jpg

Code:

Imports System.IO

    File.Delete("YourNEWFilePath)
    File.Copy("YourOLDFilePath, "YourNEWFilePath")

Note that if you want to move your file, you can use [ File.Move("YourOLDFilePath, "YourNEWFilePath") ] instead of [ File.Copy ]

By replacing, all you are doing is wiping the existence of your old file with your new one (aka, delete + copy/move). How dominant O:

Originally Posted by freedompeace

Code:

Imports System.IO

For Each item As String in Directory.GetFiles("YourFolderHere"))
    File.Delete(item)
Next

2- How can i replace files
- Ex. I want to replace 1.jpg with 2.jpg

Code:

Imports System.IO

    File.Delete("YourNEWFilePath)
    File.Copy("YourOLDFilePath, "YourNEWFilePath")

EDIT: Don't worry.

Originally Posted by Jason

Uhh, exactly what I just posted? But IO.File.Replace is probably better for replacements.

Nope, My.Computer namespace is better. Even intellisense says that !!

Originally Posted by Hassan

Nope, My.Computer namespace is better. Even intellisense says that !!

Doesn't have the wildcard option though

But whatever floats your boat

Originally Posted by Hassan

Nope, My.Computer namespace is better. Even intellisense says that !!

There is no "better" one. They are both functional. Furthermore, you can use my snippet in both Visual Basic and C# languages. The My namespace is limited to Visual Basic, while the System.IO is not.

Originally Posted by freedompeace

There is no "better" one. They are both functional. Furthermore, you can use my snippet in both Visual Basic and C# languages. The My namespace is limited to Visual Basic, while the System.IO is not.

IO.File.WriteAllText - I want this function to accept wildcards, but I can't !!

Proves what ?

Originally Posted by Hassan

IO.File.WriteAllText - I want this function to accept wildcards, but I can't !!

Proves what ?

?

What are you trying to imply? I don't see how you could use wildcards when you're writing a string to a file ...

Originally Posted by freedompeace

?

What are you trying to imply? I don't see how you could use wildcards when you're writing a string to a file ...

Oh carp, typo mistake. Meant AppendText parameter. But nvm, in 2010, they've included several more functions to Io.File class. So, meh...

Originally Posted by Hassan

Oh carp, typo mistake. Meant AppendText parameter. But nvm, in 2010, they've included several more functions to Io.File class. So, meh...

File.WriteAllText(destination, File.ReadAllText(destination + inputtext))

I think that's the parameter order, but correct me if I'm wrong (mobile).

It's not that much different. Rather than a "true" to append, you can just read the text and stick it in. Even better, take the file stream and just Encoding.ASCII.GetBytes() and stick it in to the end if the file.

You're right there though, there's no overload for appending text, but there are simple(Ish) measures of getting that functionality (speaking about .Bet 3.5). They've rectified this in .NET 4 though (not VS 2010)

Originally Posted by freedompeace

File.WriteAllText(destination, File.ReadAllText(destination + inputtext))

I think that's the parameter order, but correct me if I'm wrong (mobile).

It's not that much different. Rather than a "true" to append, you can just read the text and stick it in. Even better, take the file stream and just Encoding.ASCII.GetBytes() and stick it in to the end if the file.

You're right there though, there's no overload for appending text, but there are simple(Ish) measures of getting that functionality (speaking about .Net 3.5). They've rectified this in .NET 4 though (not VS 2010)

Functions are written to write quick and efficient code. If you're gonna always use:
File.ReadAllText(destination + inputtext)

Then it will be quite an annoying thing to do. But nvm, you can always write custom functions =D