What is the purpose of path.combine in C#?

In C#, the Path.Combine method is used to combine multiple strings into one path string. It automatically adds the correct path separator based on the operating system’s convention and ensures that the path format is correct.

The main purpose of the Path.Combine method is to simplify the process of combining paths, particularly when dealing with file and folder paths. It can accept any number of string parameters and merge them into a valid path string according to the rules of the operating system. Path.Combine ensures that the generated path string is correct, regardless of whether the input strings contain path separators.

Here is an example using Path.Combine:

string directory = @"C:\Data";
string fileName = "file.txt";

string fullPath = Path.Combine(directory, fileName);
Console.WriteLine(fullPath);

The output result will be: C:\Data\file.txt

In the above example, we pass directory paths and file names as parameters to the Path.Combine method. It will automatically merge them into a complete path string and ensure that the path separator is correctly added. This makes it easier to write portable path handling code across different operating systems.