Dima.Breydo@g... wrote:
> Hello , i'm new to XML so maybe my question is stupid ...
> 
> I need to define ENTITY in xml .  As i understand in order to do it , I
> must add a DTD to xml and then add entity. XMLSPY reports the following
> validation validation problem
> 
> "Element <Config> has not been declared"

It's trying to validate the document because it thinks that the presence
of a DocType Declaration means the document is supposed to be valid. As
you presumably don't want validation, just well-formedness, ignore the
warning.

> What should i declare and how ?

Your XML is correct as given, for a well-formed document (except that
having declared the entity, you then don't appear to use it :-)

///Peter
-- 
XML FAQ: http://xml.silmaril.ie/

> This is the xml :
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE Config [
> <!ENTITY empty "&#x2400;" >]>
> 
> <Config xmlns:md="aaa.com" version="1.0">
>   <root>
>     <md:display>/</md:display>
>     <fff ID="506e738eb3772986" />
>     <good ID="e903473c054bf906">
>       <reg ID="f45ab70984dbf5b2">
>         <md:type>date</md:type>
>         20060811120100
>       </reg>
>     </good>
>   </root>
>   <md:ccc>root</md:ccc>
> </Config>
>