private void Text_PreviewKeyDown(object sender, KeyEventArgs args)
{
TextBox source = (TextBox)args.Source;
int value, min, max;
GetFieldInfo(source, out value, out min, out max);
if (args.Key == Key.Down && Keyboard.Modifiers == ModifierKeys.None)
{
value--;
if (value < min)
{
value = max;
}
args.Handled = true;
SetTimeComponent(value, source);
UpdateTexts();
}
if (args.Key == Key.Up && Keyboard.Modifiers == ModifierKeys.None)
{
value++;
if (value > max)
{
value = min;
}
args.Handled = true;
SetTimeComponent(value, source);
UpdateTexts();
}
if (args.Key == Key.Left && Keyboard.Modifiers == ModifierKeys.None)
{
if (source.SelectionLength == source.Text.Length ||
source.SelectionLength == 0 && source.SelectionStart == 0)
{
if (source == YearText)
{
SecondText.Focus();
}
else
{
source.MoveFocus(new TraversalRequest(FocusNavigationDirection.Previous));
}
args.Handled = true;
}
}
if (args.Key == Key.Right && Keyboard.Modifiers == ModifierKeys.None)
{
if (source.SelectionLength == source.Text.Length ||
source.SelectionLength == 0 && source.SelectionStart == source.Text.Length)
{
if (source == SecondText)
{
YearText.Focus();
}
else
{
source.MoveFocus(new TraversalRequest(FocusNavigationDirection.Next));
}
args.Handled = true;
}
}
}
