I have two monthcalender in C# win application , and I need to calculate the period between then.

I need how many day between two or three month or also years

I need how many month between tow different years.

When I use :

monthcalender.selectstart.month;

this command just calculate the different between months in same year, but when move to next year the value be negative.

and same for days, I use :

monthcalender.selectstart.dayofyear;