How to create an asynchronous method

Question

I have simple method in my C# app, it picks file from FTP server and parses it and stores the data in DB. I want it to be asynchronous, so that user perform other operations

Answer 1

try this method

public static void RunAsynchronously(Action method, Action callback) {
    ThreadPool.QueueUserWorkItem(_ =>
    {
        try {
            method();
        } 
        catch (ThreadAbortException) { /* dont report on this */ } 
        catch (Exception ex) {
        }
        // note: this will not be called if the thread is aborted
        if (callback!= null) callback();
    });
}

Usage:

RunAsynchronously( () => { picks file from FTP server and parses it}, 
       () => { Console.WriteLine("Parsing is done"); } );