Question

How to check if a character in a string is numeric with VB.NET

Answer 1

Imports System

Public Class Program
    Public Shared Sub Main(ByVal args As String())
        Dim str As String = "vb.net 890"
        
        Dim character As Char = str(7)
 
        If Char.IsDigit(character) Then
            Console.WriteLine("character is numeric")
        End If
    End Sub
End Class


  
  
' run:
'
' character is numeric
'

 

70+ SQL courses for beginners and professionals

Answer 2

Imports System

Public Class Program
    Public Shared Sub Main(ByVal args As String())
        Dim str As String = "vb.net 890"
        Dim index As Integer = 7

        If Char.IsDigit(str(index)) Then
            Console.WriteLine("character is numeric")
        End If
    End Sub
End Class


  
  
' run:
'
' character is numeric
'

 

70+ SQL courses for beginners and professionals