Regular Expression for format Version_Date

Question

Hi All,

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I would like to ask what would be the regular expression in VB.net for format V09.1_22-02-1989.I have tried this but its not working out .  Dim VP As New Regex("(^[Vv]\d{1,2}.\d{1,2}(/|_)\d{1,2}(/|- )\d{1,2}\1(\d{4}|\d{2})$") Please suggest .