/// <inheritdoc/>
protected override void OnGotKeyboardFocus(KeyboardDevice device, IInputElement oldFocus, IInputElement newFocus, RoutedEventData data)
{
if (PART_Input != null)
{
PART_Input.Focus();
}
base.OnGotKeyboardFocus(device, oldFocus, newFocus, data);
}
/// <inheritdoc/>
protected override void OnLostKeyboardFocus(KeyboardDevice device, IInputElement oldFocus, IInputElement newFocus, RoutedEventData data)
{
if (PART_Input != null)
{
PART_Input.InvalidateDisplayCache(TextBox.TextProperty);
PART_Input.CaretIndex = 0;
}
base.OnLostKeyboardFocus(device, oldFocus, newFocus, data);
}
/// <inheritdoc/>
protected override void OnValueChanged()
{
if (PART_Input != null)
{
PART_Input.DigestImmediately(TextBox.TextProperty);
PART_Input.CaretIndex = PART_Input.TextLength;
}
base.OnValueChanged();
}
/// <summary>
/// Invalidates the updown's format string.
/// </summary>
private void InvalidateFormatString()
{
if (PART_Input == null)
{
return;
}
PART_Input.SetFormatString(TextBox.TextProperty, DecimalPlaces > 0 ?
"0." + new String('0', DecimalPlaces) : "0");
}