(1)bug 1: List component drag to details band,config subdataset use "select * from bookinfo",run time no show any data! but config report dataSource "select * from userinfo" ,run time show data! (2)bug 2: use Table component , show userinfo sqlserver table: id username password 1 abc abc 2 "bigtext" "bigtext" representative big big big ,long long long text. run report after effect: page 1 only show id is 1 row , other area is blank! page 2 show id is 2 row. why discontinuous show ??? if short text show normal. Table component process bigtext has bug~! (3)hope List component subdataset with mainReport "field/var/param" can interactive communication.