IsNumeric Function

Syntax:

IsNumeric(expr)

Returns the True if expr is a numeric value.

Parameter	Description
expr	A variant expression is a numeric value if it is numeric or string value that represents a number.

Example:

Sub Main
  Dim X As Variant
  X = 1
  Debug.Print IsNumeric(X) 'True
  X = "1"
  Debug.Print IsNumeric(X) 'True
  X = "A"
  Debug.Print IsNumeric(X) 'False
End Sub