split by crlf using VB.net

If you want to support all kinds of newlines (CR, LF, CR LF) and don’t need blank lines, you can split on both characters and make use of the String.Split option that stops it from producing empty entries:

str.Split(ControlChars.CrLf.ToCharArray(), StringSplitOptions.RemoveEmptyEntries)

(This also produces an empty array if the input is empty.)

If you know you have consistent CR LF newlines and you want to preserve blank lines, you can split on the entire delimiter:

str.Split({ControlChars.CrLf}, StringSplitOptions.None)

The given answer splits on any cr OR lf and removes blanks; that works ok for the given case, but it would remove 'real' empty lines as well (and feels unclean to me).

Alternative:

System.Text.RegularExpressions.Regex.Split(str, vbCrLf)

(note that the second string is a regex-pattern, special chars would have to be escaped)