C#

ArrayList months = new ArrayList();
months.Add("January");
months.Add("February");
// .... etc

int monthNum = months.IndexOf("January") + 1; 
// +1 to account for the zero-based index.

string monthName = months[monthNum - 1];
// -1 to account for the zero-based index.

static string PrintMonth(int i)
{
   return new DateTime(0).AddMonths(i).ToString("MMMM");
}

static int PrintMonthNr(string month)
{
   for (int i = 0; i < 12; i++) 
   {
      if (PrintMonth(i) == month) return i;
   }
   return -1;//some impossiblerroroccured
}

• Create a new form.
• Set the FormBorderStyle to FixedDialog.
• Add your controls.
• Set the AcceptButton property of the form to the default button, and the CancelButton property to the button you want to "click" when you press the "Escape" key.
• For each button, set the DialogResult property to the relevant value (DialogResult.Yes, DialogResult.No, etc.)
• Use the following:
  C#

  VerifyDialog myDialog = new VerifyDialog();
  DialogResult ret = myDialog.ShowDialog();
  if (ret == DialogResult.Yes)
  {
      // Do it!
  }

MessageBox.Show("Are you sure you want to do this?", 
    "Are you sure?", 
    MessageBoxButtons.YesNo
);

MyDialog dlg = new MyDlg();
string info;

if( dlg.ShowDialog(this) == DialogResult.OK )
{
   info = dlg.Info
   // Do something with info
}
-------------------------

// property inside the dialog class
public string Info
{
   // _info is a string member variable
   get { return _info; }
}