Hi to codeproject world! i have a project with sql server 2008 which has a server and 5 client. [i mean that the project i have written is running on 6 pc's(one server and 5 client)] now my problem is when the client1 is editting a record ( for exm:- Id:12 , from table1 ) other 4 client and sever should not have permission to edit that record. hint : i send Id to sql and get record and then i start to edit. at that time i am not connected to sql..