Accessing Form's Control from another class C#

Question

I\'m a newbie in c# and visual studio, but not programming in general. I searched for answer to my question for 3 days and I found plenty of them, but for some weird reason

Answer 1

Sending form instance to other other class

Form1 objForm1=new Form1();
obj.Validate(objForm1);

Easy way to access controls in another class by modifying Controls Private to Public in the Form(Designer.cs)