How to implement custom rules using RuleEngine in Windows Workflow Foundation

Hi All

Basically we are working on rules engine in WWF .To Implement custom expressions what I understand is that our class should implement IRulesExpression interface and inherit from CodeExpression.I have got a sample to explain about how to implement Custom Expression by there is no proper documentation for That.Can any one explain how Custom Expressions should be implemented and with sample code is vety much apprecaited.

Thanks in advance

Sunil

[480 byte] By [SunilReddy] at [2007-12-24]