Your problem isn't really in JSF. You are obviously working with an ORM, probably JPA, attempting to delete (remove) a row from a database table. However, the object you are attempting to delete is not presently attached to the ORM. So you have to have your JSF UI code call into the persistence code layer and as part of the persistence code, you'll need something like this:
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Joined: Mar 05, 2011
it's my first reply to my first Post...........
n btw i have resolved my problem and thanks for your kind reply hope it will help me in future....