Microsoft Access Function Library: IsNumeric()

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Function: IsNumeric()

Purpose: The IsNumeric function returns a value of true if the referenced variable can be evaluated as a number. Otherwise, it returns false.

Usage: IsNumeric(variable_name)

Where variable_name is the name of the variable you wish to test.

Returns: True if the referenced variable can be evaluated as a number; False otherwise.

Example

Dim TestEmpty
TestInt = Int(1)
TestQuote = "Test"
TestDec = 123.45

IsNumeric(TestInt) returns True
IsNumeric(TestQuote) returns False
IsNumeric(TestDec) returns True