Is there a way of making strings file-path safe in c#?

c# .net string filepath
Martin Doms picture Martin Doms · Dec 2, 2008 · Viewed 66.9k times · Source

My program will take arbitrary strings from the internet and use them for file names. Is there a simple way to remove the bad characters from these strings or do I need to write a custom function for this?

Answer

Jonathan Allen picture Jonathan Allen · Dec 2, 2008

Ugh, I hate it when people try to guess at which characters are valid. Besides being completely non-portable (always thinking about Mono), both of the earlier comments missed more 25 invalid characters.

'Clean just a filename
Dim filename As String = "salmnas dlajhdla kjha;dmas'lkasn"
For Each c In IO.Path.GetInvalidFileNameChars
    filename = filename.Replace(c, "")
Next

'See also IO.Path.GetInvalidPathChars

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