I am working on a simple application and needed some assistance.

In my program I usually hardcode my data directory (i.e. access database).
How do I not hard code it while developing (and testing), then am able to
use the userinput on targetdir?

Would I create a TARGETDIR constant during testing (i.e. c:\program
files\test app\) and then when I am writing my ADO.NET procedures, do I
reference TARGETDIR\Data\mydatabase.mdb?  Then, when it is finished, I just
delete the TARGETDIR constant?

Also, what other variable (similar to TARGETDIR) are out there?

Thanks for your help!