private void TextBoxYear_PreviewKeyDown(object sender, KeyEventArgs e)
{
if (e.Key != Key.Enter)
{
return;
}
TextBoxYear.MoveFocus(new TraversalRequest(FocusNavigationDirection.Next));
CheckEmpty();
}
private void TextBoxYear_TextChanged(object sender, TextChangedEventArgs e)
{
TextBoxYear.MoveFocus(new TraversalRequest(FocusNavigationDirection.Next));
if (!String.IsNullOrWhiteSpace(TextBoxYear.Text))
{
if (TextBoxYear.Text.Trim().Length == 4)
{
CheckEmpty();
}
}
}
