C#, execute a method after x seconds, from background

Question

Is it possible to execute a method after 30 second from background on click event(no regular event)? By "from background" I mean that UI is still working; there's no active waiting. I can't use System.Threading.Thread.Sleep(x) and so on.

I tried Timer Class, but I can't get it working how I want.

Maybe you should take a look at the `Task` or `BackgroundWorker` class — sloth, Mar 23 '15 at 15:04
How, specifically, is your timer solution not working, and what code are you using. — Servy, Mar 23 '15 at 15:04
@sloth: OP says he can't use them. (Actually I don't know...) — Patrick Hofman, Mar 23 '15 at 15:09
@PatrickHofman He says no such thing, although creating a new thread just so that it can do nothing but sit around waiting for several seconds is extremely wasteful. An asynchronous solution, such as using a `Timer`, is noticeably preferable. — Servy, Mar 23 '15 at 15:10

score 4 · Accepted Answer · answered Mar 23 '15 at 15:14

4

You can make the button click event handler async, and then just delay the task for the time you need:

private async void YourButton_Click(object sender, EventArgs e)
{
    await Task.Delay(2000);

    // do whatever you want
}

answered Mar 23 '15 at 15:14

Patrick Hofman

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Just adding that this is a C# 5.0 feature. – Anthony Mar 23 '15 at 18:32
Then update to use .NET 4.5. That is your best option. Also see [this question](http://stackoverflow.com/q/19421878/993547) to get support on .NET 4.0. – Patrick Hofman Mar 24 '15 at 14:21
Do I need to upgrade Visual Studio, now I'm using 2010 Express, or only .NET framwork? Thanks – user3463614 Mar 24 '15 at 14:44
I would recommend to upgrade since VS 2015 is coming soon already. You can download the VS 2013 community edition for free. – Patrick Hofman Mar 24 '15 at 14:45
Can you be more specific? What exactly isn't working? – Patrick Hofman Mar 27 '15 at 08:15
I'm sorry, I had to change target version of .NET in VS2013. Everything works fine. – user3463614 Mar 27 '15 at 08:46

C#, execute a method after x seconds, from background

1 Answers1