How Do I Copy A File Using File.Copy() In An Efficient Manner In C#?

Hi,

If you are using .net Framework 4.5 then use async-await. It parallel your task across multi core (if you have). It has same implementation as Task. The only big feature introduced in .net 4.5 is async-await. I will tell UI thread (Dispatcher Thread) that this process is long running and don't hang UI thread. execute this line of code in saperate thread (Task).

One of my friend (Solution 2 by Kumar Prateek) has provided you solution. but it is 40% done.

Basic syntax is

private void async btnCopy_click(object sender, EventArg a)
{
   busyIndicator.IsBusy = true; //If any busy Indicator used.

   await CopyFile();

  busyIndicator.IsBusy=false; //turn of busy indicator
}


private Task CopyFile()
{
   return Task.Factory.StartNew(()=>{ /* Your copy implemenation*/});
}

Use a BackgroundWorker thread to perform the copy. You can even update the UI by reporting progress.

By the way, what other tasks are the user expected to do while the copying is active?

Try making use of Task.Factory.StartNew method as shown bellow.

Task.Factory.StartNew(() => MethodToPerfomCopy()));

Here MethodToPerfomCopy method should contain your File.Copy(). If you do so a different process will be created and will not having any impact on the User Interface(UI).