Invoking Windows Forms become too slow...

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Hi friends,

I am using Asterisk.NET Library to recieve events from an asterisk server..
But, I cant update the forms directly in events as its on another thread. (Cross-threading problem blaablaablaa)
I am now using Invoke methode to update the form controls,,, But it seems very slow (About 5 seconds or more)
How can I make it fast ? Is there any idea other than Invoking to access form controls from another thread. Here is my code...

C#

public void New_State_Event(object sender, Asterisk.NET.Manager.Event.NewStateEvent e)
{
        this.Invoke(new MethodInvoker(delegate()
        {
              Label1.Text = e.Channel + " Calling" ;
        }));
}

Please Help me.... :(

Posted 15-Oct-13 23:38pm

Yesudasan Moses

Updated 16-Oct-13 0:53am

v2

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Comments

lukeer 16-Oct-13 7:10am

The GUI thread my be busy and therefore not able to respond faster. I had that once caused by a TextBox that was frequently updated.

2 solutions

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

Mart Rijkers · Answer 1 · 2013-10-16T01:07:00

Try this, it works fine in my application:

C#

public void New_State_Event(object sender, Asterisk.NET.Manager.Event.NewStateEvent e)
{
     UpdateLabel( e.Channel + " Calling" );
        
}

private void UpdateLabel(string textForLabel)
{
  if (this.Label1.InvokeRequired)
  {
     this.Invoke (new Action<string>(UpdateLabel), new object[] {textForLabel});
     return;
  }
  else
     Label1.Text= textForLabel;
}
</string>

Kim Togo · Answer 2 · 2013-10-16T01:41:00

Solution 2

At what rate is "New_State_Event" called from Asterisk.NET ?

Every time "New_State_Event" event is called, you invoke a method that is blocking the Main UI Thread and the worker thread where "New_State_Event" is coming from.

Use "BeginInvoke" and see if that helps.

Posted 16-Oct-13 1:41am

Kim Togo

Updated 16-Oct-13 1:42am

v2

Invoking Windows Forms become too slow...

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Invoking Windows Forms become too slow...

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