vb.net RegEx not works as expected

Question

I am trying to use RegEx to validate user input, the input format should be :

partA/partB

partA: number(number of digit is a variable)

partB: 2 digit number

I use the workable expression in Flex in vb.net, but not work.

My code is like follows:

    If Not Regex.Match(ItemNo.Text, "/\d\{2\}$").Success Then
       ItemNo.Text = "Invalid Contract No."
       ItemNo.Focus()
       Return
End If

Could anybody help me on this? Thanks.

what you are actually trying to achieve? what is your input? — user3972104
– user3972104, Commented Sep 25, 2014 at 5:42

Avinash Raj · Accepted Answer · 2014-09-25 05:42:22Z

1

Just change your regex to,

^\d+/\d{2}$

So the code would be,

If Not Regex.Match(ItemNo.Text, "^\d+/\d{2}$").Success Then
       ItemNo.Text = "Invalid Contract No."
       ItemNo.Focus()
       Return
End If

\d+ matches one or more digits where \d{2} matches exactly two digits.

answered Sep 25, 2014 at 5:42

Avinash Raj

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Comments

vks · Accepted Answer · 2014-09-25 05:42:24Z

1

^\d*\/\d{2}$

You should try this.This will get vairable forst partand 2 digit second part.

answered Sep 25, 2014 at 5:42

vks

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