Question : How to use Decimal Data Type in VBA code

I need to record Purchase Order line item quantities to 2 decimal places. In the past I've always used a double data type and forced rounding to 2 decimal places in my forms. I've been toying with the idea of changing the table column from a double to a decimal datatype with a scale of 2 so that I don't have to do any rounding in my forms and have the jet engine take care of it for me at the table level. Since VBA doesn't support a decimal data type, how do I handle these values in code and avoid rounding problems?

For example if I have some code that nees to add decimal data type values, do I read each value into a variant as follows:

dim var1 as variant
dim var2 as variant
dim varSum as variant
var1 = 1.15
var2 = 1.85
varSum = cdec(var1) + cdec(var2)

How does VBA handle rounding in the above style code?

Or do I convert each value to a double and do the rounding myself:

dim dbl1 as double
dim dbl2 as double
dim dblSum as double
dblSum=MyRoundingFunction(dbl1+dbl2,2)

Answer : How to use Decimal Data Type in VBA code

rmk,

your'e right - point taken. I didn't verify this.
But, I still would use double. Just calculate with this type and before writing it to the table do a rounding with a custom function. This should be the easiest way.

Greetings

Andy