c# - Connection string with relative path to the database file

Question

I load data from sdf database in winforms App. I use full path to the database file . Example :

conn = new SqlCeConnection

{

ConnectionString ="Data Source=F:\My Documents\Project1\bin\Debug\Database.sdf"

};

I d like use a relative path to the database file. For example. I have sdf file in folder F:My DocumentsProject1inDebugDatafile.sdf and I want use relative path in connection string. Any advice ? Thank you.

Answer 1

Relative path:

ConnectionString = "Data Source=|DataDirectory|Database.sdf";

Modifying DataDirectory as executable's path:

string executable = System.Reflection.Assembly.GetExecutingAssembly().Location;
string path = (System.IO.Path.GetDirectoryName(executable));
AppDomain.CurrentDomain.SetData("DataDirectory", path);