Can a Class clone property from a different class other than the parent class

Question

I have been working on a problem in MVC where I was facing code duplicity issue creating View-Models. I was wondering if there is a way to create a class whose properties can refer to properties defined in another class. I just need to write the property name or just the reference. I basically need all other stuff like Annotations should automatically come over to my new class definition.

Here is what I am looking for:

let say I have a Class A having some annotations.

Class A {

        [Required]
        [EmailAddress]
        [Display(Name = "Email ID")]
        public string EmailID { get; set; }
        [Required]

        [Required]
        [Display(Name = "Name")]
        public string FName { get; set; }
}

Now I need to write a new class B referring to some properties defined in class A.

Class B {
    public string EmailID; //should refer to class B so that I don't have to write annotations again
    public string newproperty;
}

Could you show us your code? Your question currently is too abstract. — Yuval Itzchakov, May 05 '15 at 08:51
Yes dear but the problem is different, I don't want any other stuff carried over from the parent class but just this property. — Munendra, May 05 '15 at 09:10
inheritance will be answer for this. OrElse if need make it Class A as property of class B like (customer class having address class as a property) — Anand Thangappan, May 05 '15 at 09:17

score 3 · Accepted Answer · edited May 23 '17 at 11:51

3

You are expecting something that isn't there. There is only one way to indicate that some property of B is 'the same' as that of A, and that is inheritance.

If you make B derive from A, it inherits the property EmailID and its annotations.

Another option is to use annotations on interfaces, but those share the same problems as deriving in my opinion.

Else, you just have to copy/paste the annotation, since there isn't any obvious relationship except that they share the same name.

edited May 23 '17 at 11:51

Community

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answered May 05 '15 at 09:10

Patrick Hofman

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Yes I knew there is no such solution but I thought I should put my question... it was out of curiosity really. – Munendra May 05 '15 at 09:21

Can a Class clone property from a different class other than the parent class

1 Answers1