Converts the value of a string to a decimal.
Dec ( string )
Argument |
Description |
|---|---|
string |
The string you want returned as a decimal |
Decimal. Returns the contents of string as a decimal if it succeeds and 0 if string is not a number.
The decimal datatype supports up to 28 digits.
You can also append the letter D in upper or lowercase to
identify a number as a decimal constant in DataWindow expressions. For example, 2.0d and 123.456789012345678901D are
treated as decimals.
This expression returns the string 24.3 as a decimal datatype:
Dec("24.3")
This expression for a computed field returns “Not a valid score” if the string in the score column does not contain a number. The expression checks whether the Dec function returns 0, which means it failed to convert the value:
If ( Dec(score) <> 0, score, "Not a valid score")
This expression returns 0:
Dec("3ABC") // 3ABC is not a number
This validation rule checks that the value in the column the user entered is greater than 1999.99:
Dec(GetText()) > 1999.99
This validation rule for the column named score insures that score contains a string:
Dec(score) <> 0
