Dynamic casting

[Zaccheus]

What I'm trying to acheive is that when type of that property will change I would not have to change the code that is used for setting them.

Ok, I think I understand now.

Can you make use of the using keyword in this case?

using MyGeneralType = MySpecificType;

class MySpecificType
{
}

class MyOtherType
{
}

//...

class Xyz
{
    public MyGeneralType TheProperty { /* ... */ }

    void f(object o)
    {
        this.TheProperty = (MyGeneralType)o;
    }
}

That way you can change what type MyGeneralType actually is by modifying just one line:

using MyGeneralType = MyOtherType;