interface classes

i"m new to interfaces

i have this code example :

public class DALF
{
   public  class Car
    {

        public int AddEdit(int? CarId, string Name)
        {
          ....
        }


        public DataTable Get(int? CarId)
        {
           .....

            return CarD.Get(obj);
        }

    }

    public class Worker
    {
           public static int AddEdit(int? WorkerId, string Name)
        {
          ....
        }

        public DataTable Get(int? WorkerId)
        {
         .....

         开发者_如何学Go   return carD.Get(obj);
        }

    }
}

How can i implement this calss as interface?

No offense, but I would suggest you read a few basic tutorials about OO. It sounds to me that you do not fully understand what an interface does or how inheritance works.


DISCLAIMER:

I know that this answer is not a solution to the question at hand. But our business here is to help people. And answering this question won't help avi, since his question (as far as I can understand) is based on a poor understanding of basic concepts of OO.

public interface IYourName
{
    int AddEdit(int? id, string name);
    DataTable Get(int? id);
}

public class DALF
{
   public class Car : IYourName
    {
        public int AddEdit(int? CarId, string Name)
        {
            //....
        }

        public DataTable Get(int? CarId)
        {
            //.....
            return CarD.Get(obj);
        }

    }

    public class Worker : IYourName
    {
        public int AddEdit(int? WorkerId, string Name)
        {
            //....
        }

        public DataTable Get(int? WorkerId)
        {
            //.....
            return carD.Get(obj);
        }
    }
}

Are you sure you only have static classes and methods? Interfaces are not relevent in this case.

More info here: Why Doesn't C# Allow Static Methods to Implement an Interface?