Now their might be empty cell or these 3 types of pattern. these all needs to be accepted for any other pattern or any count less or something it must say it is invalid.
and these 3 no.'s written have a very small difference… Please anyone try this . Urgent…
Use IF Activity like Not String.IsNullOrEmpty(row(“yourColumnName”).ToString)
Then:IsMatches Activity and pass input as row(“yourColumnName”).ToString and Pattern as [A-Za-z]{1}_\d{6}_\d{3}_[A-Za-z]{2}_\d{4}_[A-Za-z]{1}_[A-Za-z]{1}
Else: Row value is empty
if the pattern matches you’ll get return output as True if not False based on the output you can develop the process.