Question

I have a for loop (slowed down by a timer) and every second the loop save the date on a text file. but if i close the program before the process ends, the text file remains.

the thing is when i present in class, i will not have enough time to waste waiting for the program to end, and at the same time i need to suspend the thread at sometime so i can’t just use a smaller loop and risk not having enough time to suspend and resume.

is there a way to save the file after every loop? so whenever i exit (form based application) i would have some data there?

Answer 1

Set StreamWriter.AutoFlush property to true. That will make writer flush its buffer to the underlying file stream after every call to StreamWriter.Write.

using(var writer = File.AppendText("fileName"))
{
    writer.AutoFlush = true;
    foreach(string line in lines)
        writer.WriteLine(line);
}