private static void OnGotFocus(object sender, RoutedEventArgs e)
{
TimePickerBase picker = (TimePickerBase)sender;
if (!e.Handled && picker.Focusable)
{
if (Equals(e.OriginalSource, picker))
{
// MoveFocus takes a TraversalRequest as its argument.
var request = new TraversalRequest((Keyboard.Modifiers & ModifierKeys.Shift) == ModifierKeys.Shift ? FocusNavigationDirection.Previous : FocusNavigationDirection.Next);
// Gets the element with keyboard focus.
var elementWithFocus = Keyboard.FocusedElement as UIElement;
// Change keyboard focus.
if (elementWithFocus != null)
{
elementWithFocus.MoveFocus(request);
}
else
{
picker.Focus();
}
e.Handled = true;
}
else if (picker._textBox != null && Equals(e.OriginalSource, picker._textBox))
{
picker._textBox.SelectAll();
e.Handled = true;
}
}
}
private static void OnGotFocus(object sender, RoutedEventArgs e)
{
TimePickerBase picker = (TimePickerBase)sender;
if (!e.Handled && (picker._textBox != null))
{
if (Equals(e.OriginalSource, picker))
{
picker._textBox.Focus();
e.Handled = true;
}
else if (Equals(e.OriginalSource, picker._textBox))
{
picker._textBox.SelectAll();
e.Handled = true;
}
}
}
private static void CanClearControl(CanExecuteRoutedEventArgs args)
{
if (args.Handled)
{
return;
}
if (args.OriginalSource is not DependencyObject control || false == TextBoxHelper.GetClearTextButton(control))
{
return;
}
args.CanExecute = control switch
{
DatePicker datePicker => !ControlsHelper.GetIsReadOnly(datePicker),
TimePickerBase timePicker => !timePicker.IsReadOnly,
TextBoxBase textBox => !textBox.IsReadOnly,
ComboBox comboBox => !comboBox.IsReadOnly,
_ => true
};
}