C# uses the interface statement along with opening and closing braces to indicate the beginning and end of an interface definition. For example: public interface IDataAdapter { // member definitions } In VB, an interface definition is indicated by the Interface ... End Structure construct: Public Interface IDataAdapter ' member definitions End Interface C# uses the colon with interfaces to specify any implemented interfaces. For example: public interface IDataReader : IDisposable, IDataRecord In VB, any implemented interfaces are specified by an Implements statement on the line immediately following the Interface statement. The previous definition of IDataReader in C# would appear as follows in VB: Public Interface IDataReader Implements IDisposable, IDataRecord |