Question

How to check if a string contains only numbers in VB.NET

Answer 1

Imports System.Text.RegularExpressions

Module Module1

    Sub Main()

        Dim s1 As String = "VB.NET 13 Java 89 Python 45 C"
        Console.WriteLine(Regex.IsMatch(s1, "^[0-9 ]+$"))

        Dim s2 As String = "5267 2837"
        Console.WriteLine(Regex.IsMatch(s2, "^[0-9 ]+$"))

    End Sub

End Module


' run:
' 
' False
' True

 

70+ SQL courses for beginners and professionals