Topic: Check your assumptions . . .

[kdub_nz]

Got caught because I didn't 'Check my assumptions' 

Writing a filefind and it kept failing.
Thank fully 'Hot Reload' saved me some time while trying to find the problem.

Tearing my hair out 'cause it couldn't find "acad.lsp"
. . . . my assumption was that I actually had an acad.lsp on the search path 

fwiw, the code :

Code - C#: [Select]

1.         public static bool FindFilePath(string FileName, out string path)
2.         {
3.             try
4.             {
5.                 path = HostApplicationServices.Current.FindFile(FileName, _db, FindFileHint.Default);
6.             }
7.             catch (System.Exception ex)
8.             {
9.                 _ed.WriteMessage($"\nException in 'FindFilePath({FileName})' :: {ex.Message}\n" );
10.                 _ed.WriteMessage("Ensure the file exists and it's location is on the ACAD File Search Path and a Trusted Location");
11.                 path = string.Empty;
12.                 return false;
13.             }
14.             return true;
15.         }
16.  

usage:

Code - C#: [Select]

1.             if (FindFilePath("D:\\SD201_Config.INI", out string filePath))
2.             {
3.                 _ed.WriteMessage($"\nQualified file path : {filePath}");
4.             }
5.  

[It's Alive!]

I admire your ability to write thorough, but yet direct, exceptions
I assume _db and _ed are static

[kdub_nz]

Yes Dan, static in this testing case . . . just seemed simpler ; I'm basically lazy 

[gile]

I would have prefixed the method with: 'Try' (e.g. TryFindFilePath) to be consistent with other methods which return a boolean and use out parameters (as Dictionary.TryGetValue).

[kdub_nz]

Yes Gilles, that would be more suitable 
Thanks.