/// <summary>
/// Raises events by changing price property value.
/// </summary>
/// <param name="product">
/// The product.
/// </param>
/// <param name="newPrice">
/// The new price.
/// </param>
public static void RaiseEvent(Product product, decimal newPrice)
{
if (product == null)
{
throw new ArgumentNullException(nameof(product));
}
Type productType = product.GetType();
PropertyInfo propertyInfo = productType.GetProperty(PRICE_PROP_NAME);
if (propertyInfo != null)
{
propertyInfo.SetValue(product, newPrice);
}
}
/// <summary>
/// Assigns handlers to event.
/// </summary>
/// <param name="product">
/// The product.
/// </param>
/// <param name="priceChangedHandler">
/// The price changed handler.
/// </param>
/// <param name="priceChangeHandler">
/// The price change handler.
/// </param>
public static void AssignToEvent(
Product product,
EventHandler priceChangedHandler,
EventHandler priceChangeHandler)
{
if (product == null)
{
throw new ArgumentNullException(nameof(product));
}
Type productType = product.GetType();
EventInfo changeEventInfo = productType.GetEvent(PRICE_CHANGE_NAME);
EventInfo changedEventInfo = productType.GetEvent(PRICE_CHANGED_NAME);
if (changeEventInfo != null)
{
changeEventInfo.AddEventHandler(product, priceChangeHandler);
}
if (changedEventInfo != null)
{
changedEventInfo.AddEventHandler(product, priceChangedHandler);
}
}