Question

I have a class like this:

public class Student
{
     private string NumberP;
     public  string Number
     {
       get{return NumberP;}
       set{NumberP=value;}
     }
}
public class School
{
     private string NameP;
     public  string Name
     {
       get{return NameP;}
       set{NameP=value;}
     }
}

I want to declare a Type from another class like (school or Student), but I don’t know its type.

How Can I declare a property unknown type. I will set unknown type another time

public class MyClass
{
    public UnKnownType
    {

    }
}

Answer 1

Since the Student and School types do not have any relationship between them you could use the object type:

public class MyClass
{
    public object SomeProperty { get; set; }
}

and use like this:

MyClass myClass = new MyClass();
myClass.SomeProperty = new Student();

or make the containing class generic:

public class MyClass<T>
{
    public T SomeProperty { get; set; }
}

and then you could use like this:

MyClass<Student> myClass = new MyClass<Student>();
myClass.SomeProperty = new Student();