@kiamhuh

I suggest to use a constructor or a property to the SummaryCalculator class, and pass it a reference to the textbox, but it's a quick and dirty solution.

The best instead is to pass a reference to a class instance that contains the property you need.

Laurent.

I was playing with Brian's code after my job is done.

I could not pass in a textbox value to replace the divisor, is that anyway to do that?

Hi Brian, I was playing with your code after my job is done.

The solution is in a stand alone class, is there any possible way to pass in a textbox value so that the custom summary can be more dynamic?

Brian and Mike, million thanks for your codes.

They work perfectly.

ss.DisplayFormat = "Sum={0}"