I have a situation where I use regular expression subpattern matches to
construct new strings. In some cases, the values need to be tweaked
before constructing the new string. In Visual Basic, the match groups
are read only:

' Property 'Value' is 'ReadOnly'.
mtch.Groups.Item(1).Value = "foo"


So I want to assign the values to a temporary array of strings. But each
way I try to do so results in error messages or warnings saying it's not
doable:

' Option Strict On disallows implicit conversions from
' 'System.Collections.Generic.IEnumerable(Of String)'
' to '1-dimensional array of String'.
Dim baz() As String = mtch.Groups.Cast(Of String)()

' Value of type 'System.Text.RegularExpressions.GroupCollection'
' cannot be converted to 'String'.
Dim foo() As String = DirectCast(mtch.Groups, String)

' Value of type 'System.Text.RegularExpressions.GroupCollection'
' cannot be converted to 'System.Array'.
Dim bar() As String = DirectCast(mtch.Groups, Array)


Is there a way to do what I want, please?

Of course, I could loop over each group element and put the value in an
array manually, but this is less than elegant. I've searched all over the
net and have had no luck.

Thanks,

--Dan
--
T H E A N A L Y S I S A N D S O L U T I O N S C O M P A N Y
data intensive web and database programming
http://www.AnalysisAndSolutions.com/
4015 7th Ave #4, Brooklyn NY 11232 v: 718-854-0335 f: 718-854-0409

You can use LINQ and extension methods:

Dim xs As System.Text.RegularExpressions.GroupCollection
Dim ss() As String = (From x In xs Select (x.ToString)).ToArray

--
Andrew

In <(E-Mail Removed)> "Andrew Morton" <(E-Mail Removed)> writes:

>Dim xs As System.Text.RegularExpressions.GroupCollection
>Dim ss() As String = (From x In xs Select (x.ToString)).ToArray

Works like a charm. Many thanks,

--Dan
--
T H E A N A L Y S I S A N D S O L U T I O N S C O M P A N Y
data intensive web and database programming
http://www.AnalysisAndSolutions.com/
4015 7th Ave #4, Brooklyn NY 11232 v: 718-854-0335 f: 718-854-0409