Re: Convert String To Guid

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

Exception handling is expensive.... and this if this is not "exceptional",
as in....only happens in a blue moon, Id avoid the try/catch

From
http://geekswithblogs.net/jawad/archive/2005/05/20/GuidVerifier.aspx

private static Regex isGuid = new
Regex(@"^(\{){0,1}[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F
]{4}\-[0-9a-fA-F]{12}(\}){0,1}$", RegexOptions.Compiled);

internal static bool IsGuid(string
candidate, out Guid output)

{

bool isValid = false;

output=Guid.Empty;

if(candidate!=null)

{



if
(isGuid.IsMatch(candidate))

{


output=new Guid(candidate);


isValid = true;

}

}

return isValid;

}



rewrite that as your procedure. it avoids the try/catch, and gets the
purpose accomplished.



"Martin Moser" <MartinMoser@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:D5632D53-59D9-4434-8000-B3C97722288D@xxxxxxxxxxxxxxxx
Does somebody know if there's a faster way to convert a string to a guid,
than:

Try
gID = New Guid(myString)
Catch ex As Exception
gID = Guid.Empty
End Try

even if it's not clear that the string contains a valid guid?

tia
Martin


.

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