That Tapestry specifications changed during release 2.2.

In the older DTD (version 1.2), it was "property-path" 
and you were limited to a sequence of property names.

In the new DTD (version 1.3), it is "expression" and you 
can use OGNL expressions (which basically, it a super-
set of Java expression ... very powerful).

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> What is the difference between the following two statements?
> 
> <binding name="selected" expression="misses"/>
> <binding name="selected" property-path="misses"/>
> 
> I find that the second one works for me but the first doesn't.
> 
> The first statement produces the error message     Attribute "expression"
> is not declared for element "binding". by the class
> org.xml.sax.SAXParseException
> 
>  [ I tried following the examples in the tutorial. ]
> 
> Regards,
> 
> Manoj
> 
> 
> 
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