Question

if there are two public properties in a class, and i will need either of them to be filled by who ever creates the object of this class; is there a way in C# that can impose this behavior?

So basically if Property1 has been given a value, the user should not be able to give a value to Property2, or vice-verse?

If NOT, is there any best practice to do this, instead of creating 2 separate classes, with Property1 in one class, and Property2 in the second class?

Or may be a Method Attribute that can notify the user about this behavior? would that work?

Answer 1

you can add code in the setter. something kinda like this…

public class MyClass 
{
int one = -1;
int two = -2;

public int One { get { return this.one; }
                 set { if (this.two != -1 ) this.one == value; }}

public int Two { get { return this.two; }
                 set { if (this.one!= -1 ) this.two== value; }}
}