[SOLVED] Cannot override method with lower access than base method

Cannot override method with lower access than base method

I am almost done with migrating my software for .NET environment. Now I am going through all the warnings and cleaning them up. Then, I ran into this problem.

Here is my class:

 TColorObj = class
   value:double;
   thecolor:Color;
   Constructor;
   method ReadColor(bdr:BinaryReader);
   method WriteColor(bdw:BinaryWriter);
   method Clone:TColorObj;
   method ToString:String; Override;  <<<<----this method is raising error.
 end;

The error is "Cannot override method with lower access than base method." However, if I remove the key word, Override, it raises a warning message, "ToString" hides a parent method." TColorObj class is not inherited from any base class as you can see.

So, do I make the class TColorObj public?

Any help or hints will be appreciated.

Solution

You need to make the ToString method public in visibility, which is what it is in TObject. You can't move it from 'public' to a lower visibility in a descendant.

TColorObj = class
   value:double;
   thecolor:Color;
   Constructor;
   method ReadColor(bdr:BinaryReader);
   method WriteColor(bdw:BinaryWriter);
public
   method Clone:TColorObj;
   method ToString:String; Override;  <<<<----this method is raising error.
end;