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Home/ Questions/Q 5942391
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Editorial Team
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Editorial Team
Asked: May 22, 20262026-05-22T16:14:47+00:00 2026-05-22T16:14:47+00:00

Dim number As String = 07747(a) If number…. Then endif I want to be

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Dim number As String = "07747(a)"

If number.... Then

endif

I want to be able to check inside the string to see if it only has number, if it does only contain numbers then run whatever is inside the if statment? What check do i use to check if the string only contains numeric and no alpha ot () etc ..?

What i am trying to check for is mobile numbers, so 077 234 211 should be accepted, but other alphas should not be

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  1. Editorial Team
    Editorial Team
    2026-05-22T16:14:48+00:00Added an answer on May 22, 2026 at 4:14 pm

    You could use a regular expression like this

    If Regex.IsMatch(number, "^[0-9 ]+$") Then
    
    ...
    
    End If
    
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