Question

I have a base class like this:

public class BaseResponse
{
  public string ErrorMessage { set;get;}
}

And some child classes which inherit from this:

public class Person:BaseResponse
{
  public string FirstNAme { set;get;}
}

public class Phone:BaseResponse
{
  public string SerialNumber { set;get;}
}

public class Car :BaseResponse
{
  public string Year{ set;get;}
}

Now I want to set the ErrorMessage property of each instance of this class to a different value. Currently this is what I am doing:

public Phone GetPhoneError(Phone objPhone)
{
  objPhone.ErrorMessage="Err msg related to Phone";
  return objPhone;
}

public Person GetPersonError(Person objPerson )
{
  objPerson .ErrorMessage="Err msg related to Person";
  return objPerson ;
}

... another similar method for Car also

Is there any way I can make this method a generic format so that I don’t need 3 separate methods for setting the error message?

Answer 1

public T GetError<T>(T obj) where T: BaseResponse
{
  obj.ErrorMessage= string.Format("Err msg related to {0}", typeof(T).Name);
  return obj;
}

I don’t know if the error message is this generic thing or something custom. If so, then pass the message as an argument.

Why do you need a method for this? Is it because you have simplified the question?