few questions

hey guys, i had a couple of questions for visual basic 2010

- how could i clear my temp folder & prefetch by using a button . (must work on other peoples computers) and yep ive tried tutorials, didnt work for me
- remove junk files

^ basically things like this, i really would like to make a cleaner!

thanks!

Temp Folder

Code:

Function GetTempDirectory() As String
    Return Environment.GetEnvironmentVariable("TEMP")
End Function

Code:

Dim filePath As String
For Each filePath In Directory.GetFiles(GetTempDirectory())
    Try
        File.Delete(filePath)
    Catch
        ' IGNORE EXCEPTION THROWN
    End Try
Next

Internet Explorer History Path (Maybe useful?)

Code:

Public Function GetHistoryDirectory() As String
    Return Environment.GetFolderPath(Environment.SpecialFolder.History)
End Function

Found these on a website.
All credits go to: iwilld0it

I haven't tested these myself as I do not code in VB but you could give them a go. Good luck.

Originally Posted by Magnificient

Temp Folder

Code:

Function GetTempDirectory() As String
    Return Environment.GetEnvironmentVariable("TEMP")
End Function

Code:

Dim filePath As String
For Each filePath In Directory.GetFiles(GetTempDirectory())
    Try
        File.Delete(filePath)
    Catch
        ' IGNORE EXCEPTION THROWN
    End Try
Next

Internet Explorer History Path (Maybe useful?)

Code:

Public Function GetHistoryDirectory() As String
    Return Environment.GetFolderPath(Environment.SpecialFolder.History)
End Function

Found these on a website.
All credits go to: iwilld0it

I haven't tested these myself as I do not code in VB but you could give them a go. Good luck.

I think directory's are easier to declare as a string. It's shorter...

Dim Cornporn As String = Environment.GetFolderPath(Environment.SpecialFolde r.History)

Originally Posted by Cryptonic

I think directory's are easier to declare as a string. It's shorter...

Dim Cornporn As String = Environment.GetFolderPath(Environment.SpecialFolde r.History)

Look into the DRY principle of development. It's better to wrap something like this in a function if you plan on using it a lot throughout your code. What if the way to get the history/temp path changes? Instead of changing it once in the function definition, you now have to change it in 10000 different places (and even with find+replace you may miss some).

Originally Posted by Jason

Look into the DRY principle of development. It's better to wrap something like this in a function if you plan on using it a lot throughout your code. What if the way to get the history/temp path changes? Instead of changing it once in the function definition, you now have to change it in 10000 different places (and even with find+replace you may miss some).

Can't you just declare it in a module or a class, and you can use it for all of your code? (I think... at school, don't currently have access to VB)

Like I said, I found it on a website so I just passed it along. Thanks for the suggestion though. Now let's hope the OP finds these useful enough.

My next big project is mainly PHP. It's going to be a hosting service for SHSH Blobs/APTickets. If I'm able to I'm going to write software to extract and auto-upload the blobs.

You do realise that cleaning prefetch is actually bad right?

@ Pepsi
Since it won't change, you should store it in a private member.
Calculate once, and store.

Code:

''Private class members
Dim _historyFolderPath as String = "" ''Stored to avoid excessive function calls
...
Form1_load
_historyFolderPath = Environment.GetFolderPath(Environment.SpecialFolder.History) ''copy-pasted from above : un-tested.
End Sub

edit: I guess it depends on your needs/wants: Doing it this way will "make your class a little larger" because you're keeping the string in ram forever, but you don't have to call a function every time you use it, which increases run speed. For this example, you really won't be able to tell the difference (...you probably only call this function *several* times, not several thousand per second).

Yeah, It really won't make too much of a difference, considering it's a small string.

few questions

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