Waiting for a event to occur

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hi all,

Please look at the code below. I'm showing a form on the screen and then I would like to wait for the form to close before I continue with the rest of the code. Note that I cannot do ShowDialog (this a requirement) on the form. So I call Show method on the form.

private void button1_Click( object sender, EventArgs e )
{
  Form f = new Form( );
  f.FormClosed += new FormClosedEventHandler(f_FormClosed);
  f.Show( );
  // Here I want to wait for this form
  // to close before continuing with the rest of the code

  // Once closed, I would like to go on with the rest of code here.
  //For example:
  Console.WriteLine("My waiting is done.");

}

void f_FormClosed( object sender, FormClosedEventArgs e )
{

}

How do I go about achiving this?

Many thanks in advance.
/Mizan

Posted 8-Aug-12 0:30am

Mizan Rahman

Updated 8-Aug-12 0:32am

v3

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Prabhakaran Soundarapandian 8-Aug-12 6:37am

is this silverlight project?

3 solutions

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Kenneth Haugland · Answer 1 · 2012-08-08T00:32:00

Solution 1

Use onCLosing as this is triggered before the Close event is, you could put your code in there?

Posted 8-Aug-12 0:32am

Kenneth Haugland

Updated 8-Aug-12 0:33am

v2

Sangramsingh Pawar · Answer 2 · 2012-08-08T00:36:00

C#

private void button1_Click( object sender, EventArgs e )
   {
     Form f = new Form( );
     f.FormClosed += new FormClosedEventHandler(f_FormClosed);
    f.FormClosing += new FormClosingEventHandler(f_FormClosesing);
    f.Show( );


  

  }

 f_FormClosesing(object sender, FormClosingEventArgs e e)
{
 //  Write Here code which you want to run before form close;
}

  void f_FormClosed( object sender, FormClosedEventArgs e )
  {
  // your code when form closed
    Console.WriteLine(&quot;My waiting is done.&quot;);
  }

Andreas Gieriet · Answer 3 · 2012-08-08T00:37:00

If it is a modal dialog, call ShowDialog on that Form (e.g. see http://msdn.microsoft.com/en-us/library/c7ykbedk(v=vs.80).aspx[^]).

If you insist on working with events, see http://msdn.microsoft.com/en-us/library/ms173179(v=vs.80).aspx[^].

Cheers
Andi

PS: *Why* is it a requirement to not call ShowDialog()? You might need to elaborate on that on what issue requires you to not use that very convenient and obvious solution. Is the one requiring you to not use ShowDialog() willing to pay the cost (re-inventing the wheel, development time, testing cost, etc.)?

Waiting for a event to occur

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Waiting for a event to occur

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