Cannot override method with lower access than base method

Question

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.

The error seems to indicate that you should make the ToString method public. — Klas Lindbäck, Aug 09 '12 at 13:10

score 4 · Accepted Answer · answered Aug 09 '12 at 13:12

4

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;

answered Aug 09 '12 at 13:12

Ken White

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Ken White, It's Fixed. Thank you. – ThN Aug 09 '12 at 13:17

score 1 · Answer 2 · answered Aug 09 '12 at 13:18

1

Every class is inheriting from another class, if you don't specify a class you are inheriting from the Object class.

You are overrinding the ToString method which is public, so you have to make the overriding method public also.

answered Aug 09 '12 at 13:18

Guffa

687,336
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Cannot override method with lower access than base method

2 Answers2