Compiler Error C2844

'member' : cannot be a member of interface 'interface'

Remarks

An interface class cannot contain a data member unless it is also a property.

Anything other than a property or member function is not allowed in an interface. Furthermore, constructors, destructors, and operators are not allowed.

Example

The following example generates C2844:

// C2844a.cpp
// compile with: /clr /c
public interface class IFace {
   int i;   // C2844
   // try the following line instead
   // property int Size;
};