protected override void OnTextChanged(EventArgs e)
        {
            base.OnTextChanged(e);

            if (!Blank)
            {
                int value;
                if (!Int32.TryParse(Text, out value))
                    base.Text = String.Empty;
                else
                {
                    if (value > RangeUpper)
                    {
                        base.Text = RangeUpper.ToString(CultureInfo.InvariantCulture);
                        SelectionStart = 0;
                    }
                    else if ((TextLength == MaxLength) && (value < RangeLower))
                    {
                        base.Text = RangeLower.ToString(CultureInfo.InvariantCulture);
                        SelectionStart = 0;
                    }
                    else
                    {
                        int originalLength = TextLength;
                        int newSelectionStart = SelectionStart;

                        base.Text = value.ToString(CultureInfo.InvariantCulture);

                        if (TextLength < originalLength)
                        {
                            newSelectionStart -= (originalLength - TextLength);
                            SelectionStart = Math.Max(0, newSelectionStart);
                        }
                    }
                }
            }

            if (null != TextChangedEvent)
            {
                TextChangedEventArgs args = new TextChangedEventArgs();
                args.FieldIndex = FieldIndex;
                args.Text = Text;
                TextChangedEvent(this, args);
            }

            if (TextLength == MaxLength && Focused && SelectionStart == TextLength)
                SendCedeFocusEvent(IPAddressControlDirection.Forward, IPAddressControlSelection.All);
        }
        private void OnFieldTextChanged(Object sender, TextChangedEventArgs e)
        {
            if (null != FieldChangedEvent)
            {
                FieldChangedEventArgs args = new FieldChangedEventArgs();
                args.FieldIndex = e.FieldIndex;
                args.Text = e.Text;
                FieldChangedEvent(this, args);
            }

            OnTextChanged(EventArgs.Empty);
        }