how do I convert wpf dispatcher to winforms

Question

I was moving over a method to my winforms project from a wpf project.

Everything but this section was moved without issue:

private void ServerProcErrorDataReceived(object sender, DataReceivedEventArgs e)
{
  // You have to do this through the Dispatcher because this method is called by a different Thread
  Dispatcher.Invoke(new Action(() =>
  {
    richTextBox_Console.Text += e.Data + Environment.NewLine;
    richTextBox_Console.SelectionStart = richTextBox_Console.Text.Length;
    richTextBox_Console.ScrollToCaret();
    ParseServerInput(e.Data);
  }));
}

I have no idea how to convert over Dispatcher to winforms.

Can anyone help me out?

*If your WPF code translates well enough to winforms, most probably you're doing it wrong. winforms' databindings capabilities are really limited compared to WPF's* — Federico Berasategui, Aug 08 '13 at 19:52
@HighCore Sometimes, you have no choice about the technology you have to use — Shimrod, Aug 08 '13 at 19:53
@Shimrod I didn't say anything about the technology. I'm saying well-formed WPF code is fundamentally different from winforms code. — Federico Berasategui, Aug 08 '13 at 19:55
@HighCore the C# code moved over just fine... not sure what the problem is? — ErocM, Aug 08 '13 at 19:55
@HighCore: Ok, but what does that have to do with anything? He has to make the translation. What's your point? It's not like converting WPF to WinForms requires some brilliant technological insight. — Ed S., Aug 08 '13 at 19:56
I didn't mean to offence you, *"winforms' databindings capabilities are really limited compared to WPF's"* sounded a bit dogmatic. But I understand your point of view now. — Shimrod, Aug 08 '13 at 19:57

Shimrod · Accepted Answer · 2013-08-08T20:03:18.543

13

You should use Invoke to replace the Dispatcher.

private void ServerProcErrorDataReceived(object sender, DataReceivedEventArgs e)
{
    if (richTextBox_Console.InvokeRequired)
    {
        richTextBox_Console.Invoke((MethodInvoker)delegate
        {
            ServerProcErrorDataReceived(sender, e);
        });
    }
    else
    {
        richTextBox_Console.Text += e.Data + Environment.NewLine;
        richTextBox_Console.SelectionStart = richTextBox_Console.Text.Length;
        richTextBox_Console.ScrollToCaret();
        ParseServerInput(e.Data);
    }
}

edited Aug 08 '13 at 20:03

answered Aug 08 '13 at 19:52

Shimrod

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1

More specifically use the `Invoke` method on `richTextBox_Console`. – Brian Ball Aug 08 '13 at 19:58

how do I convert wpf dispatcher to winforms

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