IsGood

The IsGood function is supported in Studio ONLY. It returns true if the argument value is good, i.e. the attribute exists and the attribute value is good. Otherwise it returns false. According to the Previous Case argument the function works on the current or in the previous case.

Prototype

    IsGood(PreviousCase ; Attribute)

Arguments

    PraviousCase      String       By value (Nullable) 

    Null (not defined) or empty string or equal to

       'N' -- work on current case
       'Y' -- work on previous case

    Attribute         String      By value

    A valid string containing the Attribute name.

Returns

    Boolean

    the function returns True if the Attribute value is good

Exception

    Undefined

    Undefined is returned if:

    - PreviousCase is not empty and not a valid one, or the previous case does not exist
    - The attribute is not found

Examples 

  IsGood( ; 'Density')

This will return False if the Density value is bad.

  IsGood('Y' ; 'i_Meas_Mass')

This will return False if the i_Meas_Mass value is bad in the previous case.