How to detect if a file exist in a project folder?

Question

I am having a collection of images in my project folder.

how to detect if a image exist in my project folder? I am using c#. Thanks.

Answer 1

if (System.IO.File.Exists("pathtofile"))
  //it exist
else
  //it does not exist

EDITED MY ANSWER AFTER THE COMMENT OF THE QUESTION:

I copied the code and changed the exits function, this should work

string type = Path.GetExtension(filepath); 
string path = @"image/" + type + ".png"; 
//if(System.IO.File.Exists(path)) I forgot to use the full path
if (System.IO.File.Exists(Path.Combine(Directory.GetCurrentDirectory(), path)))
 { return path; } 
else 
 { return @"image/other.png"; }

This will indeed work when your app is deployed