how to call two methods in c# one by one

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I have two methods in my win app.

C#

private void zim()
{
//code
}

and

C#

private void zimtim()
{
//code
}

I have to access both methods on button_Click event.but zimtim(); must be called after 10 seconds of zim();

any help?

Posted 13-Jul-14 19:12pm

Member 10579673

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Sergey Alexandrovich Kryukov 14-Jul-14 1:20am

Why? What is the application type? UI library you use?
—SA

Member 10579673 14-Jul-14 1:29am

its a jabber application

first method is for connection.
and second for joining conference.

so connection takes atleast 10 seconds .without being connected i cannot join conference.thats why need 10 seconds gap between the two

Sergey Alexandrovich Kryukov 14-Jul-14 1:31am

I answered, but this 10 sec looks like total abuse. What if 10 sec is not enough? You need to radically review your code design.
—SA

Maciej Los 14-Jul-14 2:05am

That's the anwer!

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Sergey Alexandrovich Kryukov · Answer 1 · 2014-07-13T19:29:00

What you describe is not exactly "one by one".

I'm ~~almost~~ sure ([EDIT] quite sure after the OP's comment in reply to my comment to the question[END EDIT]) this requirement makes no sense, but you should call one method, then set a timer for the delay you need, and in the timer event handler, call the second method. Note that this method will be called asynchronously to you UI, so you have to be prepared to deal with that.

The choice of the timer depends on several factors, including the UI you are using. For example, for System.Windows.Forms, you can use System.Windows.Forms.Timer, but this timer has extremely bad accuracy, but I can imagine that, with 10 sec, you would not care much. Then, you can do whatever you want in the timer even handler. With some other timers, you cannot directly call any UI methods/properties, because the timer event can be called in some other thread. Besides, you can use a thread instead of the timer.

You cannot call anything related to UI from non-UI thread. Instead, you need to use the method Invoke or BeginInvoke of System.Windows.Threading.Dispatcher (for both Forms or WPF) or System.Windows.Forms.Control (Forms only).

You will find detailed explanation of how it works and code samples in my past answers:
Control.Invoke() vs. Control.BeginInvoke()[^],
Problem with Treeview Scanner And MD5[^].

See also more references on threading:
How to get a keydown event to operate on a different thread in vb.net[^],
Control events not firing after enable disable + multithreading[^].

With WPF, you can use System.Windows.Threading.DispatcherTimer which also runs on a separate thread, so you would need to use the mechanism described above:
http://msdn.microsoft.com/en-us/library/system.windows.threading.dispatchertimer%28v=vs.110%29.aspx[^].

—SA

Mehdi Gholam · Answer 2 · 2014-07-13T19:32:00

Solution 2

Try this :

C#

public void zim()
{
   // your code here
   Thread.Sleep(10*1000);// 10 seconds wait
   zimtim(); // call the other
}

And just call zim() in your button_click().

Posted 13-Jul-14 19:32pm

Mehdi Gholam

Comments

lukeer 14-Jul-14 3:06am

And block the whole UI for 10 seconds? Are you sure that this is such a good idea?

Mehdi Gholam 14-Jul-14 5:42am

He can always call the outer method from a thread or task.

lukeer 14-Jul-14 5:56am

[quote]have to access both methods on button_Click event.[/quote]
That info would belong in the solution, then.