C# - Communicating with an external class

Alright, what I am trying to do is make a program that when you put in the day of the month, like for example 1 would be January. It tells you how many days are in the month and what the month is, I need to make an external class called clsMonths in my solution explorer because thats what this assignment wants me to do.

So how do I communicate with this external class via my main form?

Im thinkin that I can create arrays in this external class and grab the values to use in my form.

Been trying to figure this out for a long time, been searching Google, and cant find much. I Couldn't figure this out on my own to save my life...

thanks for any help.

 

Well, for starters the DateTime class has a method called DaysInMonth
http://msdn.microsoft.com/en-us/library/system.datetime.daysinmonth.aspx
SO that should save you an enormous amount of time trying to work that out

So if you have an external class, you need to add a reference to this class if it's not part of your applications solution. If it IS part of your solution, you need only to instantiate the class via the "new" keyword. I would imagine your class would be rather small given that the hard work is already done for you with the DateTime.DaysInMonth() method.

 

Hell yeah!! Thank you so much!! You are the shit! I really needed to get this done tonight.