c# programming

Hello, everyone. I have some problems in c# SQLite data update and creating. I'm using SQLite as a database in my c# windows form application. By the way, sometimes I've got a "database is locked" error in SQLite, when I try to insert or update data. While searching the way on google, I got know...

Hello would someone please help me with my program, I'm stuck all day with this thing. The program runs, but I think the problem is a logical error. The fraction 1/4 + 2 1/2 should be equal to 2 3/4 but the program's result is 2 3/8. Another thing is the expression 1/8 + 2 1/2 should be...