C#

[sycn attribute here]
void Test()
{
   DoLengthy();
}

[sycn attribute here]
void Test2()
{
   // does nothing!
}

// in a different class
ThreadStart ts1 = Test;
ThreadStart ts2 = Test2;
ts.BeginInvoke(null, null);
ts.BeginInvoke(null, null);

<br />
form1.Height = groupBox1.Top + (form1.Height - form1.ClientSize.Height)<br />

<br />
form1.Height = groupBox1.Top + (form1.Height - form1.ClientSize.Height) + groupBox1.Height<br />

MyMessageBox mmb = new MyMessageBox();
mmb.ShowDialog();
switch (mmb.Result) {
   case MyMessageBoxResult.Yes:
      //do something
   case MyMessageBoxResult.YesAll:
      //do even more
   ...
}

#namespace TabCode
{
public class TabChoice
{
     public string Text;
     public bool Active;	

     public TabChoice(string text, bool active)
     {
          Text = text;
          Active = active;
     }
}

public delegate void TabPanelChangeEvent(TabChoice choice);

public class TabPanel : Panel
{
     private ArrayList _choices;
     public TabPanelChangeEvent Change = null;

     private void FireChange(int index)
     {
          if (Change != null)
          {
               Change((TabChoice)_choices[index]);
          }
     }

     // Skipping alot of code for brevity.......
}
}

public void RegistureRadioButton(RadioButton rb)
{
    rb.CheckChanged += new EventHandler(OnCheckChange);
}

private void OnCheckChange(object sender, EventArgs ea)
{
    RadioButton rb = (RadioButton)sender;
    if (rb.Checked) 
    {
        if (rb.Text == "Choice 1")
        {
             //Choice 1 active
        }
    }
}

<br />
UserMenu menu = new UserMenu();<br />
menu.MyMainForm = this;<br />