How to control Database connection in C# Application

Question

Dear senior programmers....

                Please help me.I have a c# application.This application include localdatabase .sdf.
This application compiled to setup file.exe.This setup.exe install to other computer then error message show is database path error.Tell me how to write this database path no change  and I don't wish  install sqlserver to  this application installation other computer.
example ..............protable style application.(Like Directory application)Other computer no database server and this application is not change and successfully installation.Please tell me thank.