Checking whether a file exists is a common task in programming, and ASP.NET is no exception. There are several ways to check if a file exists in ASP.NET, each with its own advantages and disadvantages. Knowing how to check for a file’s existence can be a valuable skill as it allows you to handle scenarios like gracefully handling missing files or ensuring data integrity.
One of the simplest ways to check if a file exists is to use the System.IO.File.Exists method. This method takes a path to a file as a parameter and returns a boolean value indicating whether the file exists. For example: