A Regular Expression to validate alphabetic characters with dots and spaces in VB.net

Suppose we have a string like A.K. Ramaswamy

And we want to write the regular expression for the same. The below will do so

Imports System.Text.RegularExpressions

Namespace ConsoleApplication1
	Class Program
		Private Shared Sub Main(args As String())
			Dim input = "A.K. Ramaswamy"
			Dim rgx As New Regex("^[a-zA-Z. ]*$")
			Console.WriteLine(rgx.IsMatch(input))
			Console.ReadKey()
		End Sub
	End Class
End Namespace