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Syntax
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IsNumeric
(expression)
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Description
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Returns
True
if expression can be converted to a number; returns
False
otherwise.
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Comments
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If passed a number or a variant containing a number, then
IsNumeric
always returns
True
.
If a
String
or
String
variant is passed, then
IsNumeric
will return
True
only if the string can be converted to a number. The following syntaxes are recognized as valid numbers:
&Hhexdigits[&|%|!|#|@]
&[O]octaldigits[&|%|!|#|@]
[-|+]digits[.[digits]][E[-|+]digits][!|%|&|#|@]
If an
Object
variant is passed, then the default property of that object is retrieved and one of the above rules is applied.
IsNumeric
returns
False
if expression is a
Date
.
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Example
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Sub Main()
Dim s$ As String
s$ = InputBox("Enter a number.","Enter Number")
If IsNumeric(s$) Then
MsgBox "You did good!"
Else
MsgBox "You didn't do so good!"
End If
End Sub
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See Also
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Variant (data type); IsEmpty (function); IsDate (function); IsError (function); IsObject (function); VarType (function); IsNull (function).
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