Question

When I implement an interface for the first time into a class I want either resharper 6 or visual studio 2010 to implement my properties as auto implemented properties and not put in the default value of throw new NonImplementedException();. How can I do this? For example:

public interface IEmployee
{
// want this to stay just like this when  implemented into class
ID { get; set; }
}

public class Employee : IEmployee
{
// I do not want the throw new NonImplemented exception
// I want it to just appear as an auto implemented property
// as I defined it in the interface
public int ID
        {
            get
            {
                throw new NotImplementedException();
            }
            set
            {
                throw new NotImplementedException();
            }
        }
}

Because this happens all the time, I am finding myself having to constantly refactor and manually remove those throw new UnImplimented() exceptions and manually make the properties be auto implemented… a pain! After all, I defined it as an auto implemented property in my interface.

Any help or advice much appreciated! Thanks.

Answer 1

Note: your R# keyboard shortcuts may differ, I am using the Resharper 2.x keyboard schema.

If you declare the interface on the class and then use Alt+Enter and select “Implement members”:

Then you will get the default implementation, which happens to be throwing NotImplementedException, unless you change that.

But if you ignore the suggested course of action and instead use Alt+Insert to open the Generate menu, you can select “Missing members”:

This will open Generate window, where you can select to implement the property (or properties) as auto-implemented:

That will do exactly what you want:

class Employee : IEmployee
{
    public int Id { get; set; }
}