Error: does not implement interface member 'Project.intprjDocument.prjdocstatus

Is your problem solved, if it still exists feel free to post back.

interface IMyInterface
{
 void SomeMethod(float f);
}

public class MyClass : IMyInterface
{
 public void SomeMethod(double d)
 {
 }
}

if you see the above code, So here the class MyClass does not implemented the method SomeMethod(float). So the method SomeMethod(doubt) does not count, because the parameters does not match ( did you observed one if float and other if double !!) .

So this is the reason why one will get the error that Does not Implement the so and so error. so you have to Implement the method of Interface in the class.

Hope this helps.