interface property copy in c#

Question

I\'ve been working with C# for many years now, but just come across this issue that\'s stumping me, and I really don\'t even know how to ask the question, so, to the example!

Answer 1

Here's one way to do it that has nothing to do with interfaces:

public static class ExtensionMethods
{
    public static void CopyPropertiesTo<T>(this T source, T dest)
    {
        var plist = from prop in typeof(T).GetProperties() where prop.CanRead && prop.CanWrite select prop;

        foreach (PropertyInfo prop in plist)
        {
            prop.SetValue(dest, prop.GetValue(source, null), null);
        }
    }
}

class Foo
{
    public int Age { get; set; }
    public float Weight { get; set; }
    public string Name { get; set; }
    public override string ToString()
    {
        return string.Format("Name {0}, Age {1}, Weight {2}", Name, Age, Weight);
    }
}

static void Main(string[] args)
{
     Foo a = new Foo();
     a.Age = 10;
     a.Weight = 20.3f;
     a.Name = "Ralph";
     Foo b = new Foo();
     a.CopyPropertiesTo<Foo>(b);
     Console.WriteLine(b);
 }

In your case, if you only want one set of interface properties to copy you can do this:

((IAddress)home).CopyPropertiesTo<IAddress>(b);

Answer 2

You could have a constructor on each class taking an IAddress and have implemented members populated within.

eg

public WorkAddress(Iaddress address)
{
    Line1 = IAddress.Line1;
    ...
}

For maintainability use reflection to get property names.

HTH,

Dan