C#

int gmul(int a, int b) {
	int p = 0;
	int counter;
	int carry;
	for (counter = 0; counter < 8; counter++) {
		if ((b & 1) != 0)
			p ^= a;
		carry = a & 0x80;  /* detect if x^8 term is about to be generated */
		a <<= 1;
		if (carry != 0) 
			a ^= 0x81; /* replace x^8 with x^6 + x^4 + 1 */
		b >>= 1;
	}
	return p & 0xFF;
}

private static string RedactCC(string stringToRedact)
{
    const string pattern = @"(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11})";
    stringToRedact = Regex.Replace(
        stringToRedact,
        pattern,
        m => "***-**-" + m.Value.Substring(m.Value.Length - 4, 4));
    return stringToRedact;
}

private static string RedactSSN(string stringToRedact)
{
    const string pattern = @"\d{3}-\d{2}-\d{4}";
    stringToRedact = Regex.Replace(
        stringToRedact,
        pattern,
        m => "***-**-" + m.Value.Substring(m.Value.Length - 4, 4));
    return stringToRedact;
}

using (var context = new MyDbContext())
{
    var items = context.MyTable.Include(c => c.YourRelatedCollection).Where(...);
}

ObjectQuery<T>.Include

// Utility form close handler
protected override void OnFormClosing(FormClosingEventArgs e) {
  if (e.CloseReason == CloseReason.UserClosing) {
    Hide();
    e.Cancel = true;
  }
  base.OnFormClosing(e);
}