Performing operations after reading the last line of a file with a StreamReader

Question

I am using a StreamReader to read lines from a text file. For each line I have specific operations that are performed.

Example:

System.IO.StreamReader file = new System.IO.StreamReader(fileDirectory); //Open StreamReader
while ((inFileString = file.ReadLine()) != null)
{
    if(something)
    { do stuff... }
}

My problem occurs after the last line is read, because the code inside the while loop becomes inaccessible. It's basically like I need to be allowed to go through the while loop one more time, after it automatically exits. How do I perform my operations on the last line read from the file?

(I could just replicate the operations outside of the loop, but I figured that would be inefficient...)

Answer 1

I think something like this looks acceptable.

using (StreamReader file = new StreamReader(@"D:\Downloads\testfile.txt"))
{
    string str = "";
    while ((str = file.ReadLine()) != null || str == null)
    {
        if (str == null)
        {
            Console.WriteLine("Hey! We've already passed the EOF!");
            break;
        }

        Console.WriteLine(str);
    }
}