/// <summary>
/// Handle the Value of MoneyBox changing. Change the value of Text to match.
/// </summary>
/// <param name="sender">The MoneyBox.</param>
/// <param name="eventArgs">The event arguments.</param>
static private void OnValueChanged(DependencyObject sender, DependencyPropertyChangedEventArgs eventArgs)
{
MoneyBox box = sender as MoneyBox;
box.Text = String.Format("{0:0.00}", box.Value);
box.DisplayText = String.Format("{0:C}", box.Value);
box.RaiseEvent(new RoutedEventArgs(MoneyBox.ValueChangedEvent));
}
/// <summary>
/// Handle the value of IsNullable changing. Try to set a reasonable value for Value if it doesn't have one.
/// </summary>
/// <param name="sender">The MoneyBox.</param>
/// <param name="eventArgs">The event arguments.</param>
private static void OnIsNullableChanged(DependencyObject sender, DependencyPropertyChangedEventArgs eventArgs)
{
MoneyBox box = sender as MoneyBox;
if (!box.IsNullable && box.Value == null)
{
box.Value = box.oldValue;
}
}