In a smart client application, image files that you add on the Resource Files page in the project painter are designated as Include files. They are installed in the same directory as the application’s executable files, libraries, and other static files. You can also specify that a file’s Publish Type is “Data File.” Files of this type are installed to a data directory. When an update to the application occurs, a data file might be migrated by the application.
The data directory is intended for application-managed data—data that the application explicitly stores and maintains. To read from and write to the data directory, you can use code enclosed in a conditional compilation block to obtain its path:
string is_datafilename long li_datafileid is_datafilename="datafile.txt"
#if defined PBWINFORM Then if System.Deployment.Application. ApplicationDeployment.IsNetworkDeployed=true then is_datafilename=System.Windows.Forms. Application.LocalUserAppDataPath+ "\\"+is_datafilename end if #end if li_datafileid = FileOpen (is_datafilename, linemode!, write!, lockwrite!, append!)
For more information about using preprocessor symbols and conditional compilation, see Chapter 14, “Referencing .NET Classes in PowerScript.”
