I create an empty cursor, append empty records equal related table at sql server. when user move page or jump anywhere at grid, fill empty records use with a code part from a thread from you and another developer from Europe (I'm not sure but maybe he was Walter Mester or another, sorry). That code part worked for me very well, thanks both of you.
Maybe this feature works faster but needs SQL 2012 is not a good idea. Customers at Turkey usually don't upgrade their's SQL SERVER's. You know, SQL SERVER is not a visual application and if it works, enough for them...