Wait for file to be freed by process

Question

How do I wait for the file to be free so that ss.Save() can overwrite it with a new one? If I run this twice close together(ish), I get a generic GDI+

Answer 1

bool isLocked = true;
while (isLocked)
 try {
  System.IO.File.Move(filename, filename2);
  isLocked = false;
 }
 catch { }
 System.IO.File.Move(filename2, filename);