How to attach .mdf file to .SQLEXPRESS

Question

Tried this in as connection string

connectionString=\"Server=.\\SQLEXPRESS;
    AttachDbFilename=E:\\Database\\dnn49.mdf;Database=dnn49; 
    Trusted_Connect         


        

Answer 1

One other suggestion is to turn off UAC (you can turn it off just temporary to verify if it is a permission problem).