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problem with attaching a db instance to app_data

Posted By:      Posted Date: September 16, 2010    Points: 0   Category :ASP.Net
hey,i've problem with attaching an existing db instance to app_data folder (need to work with ado.net). once i do so, an error message crops up alerting that the db instance is in use by another process that i guess is sql server 2008. i detach the instance from sql management studio and again attach it to my app_data and it works this time and i see my instance ready under the folder but when i double click it another message comes up indicating some problems about not having found such instance or something! i even connect my instance via data connection in server explorer but nothing happens. please help me cause noway i get to get around the problem!any help is welcomed.

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