protected virtual void OnCheckPrice(Product product)
{
PriceChecking?.Invoke(this, new PriceCheckEventArgs()
{
Product = product
});
}
public event EventHandler <PriceCheckEventArgs> PriceChecking; // Define an event based on the delegate
public void CheckPrice(Product product)
{
// Product type determines which service
if (product.Type == 1)
{
PriceChecking += service1.PriceChecking;
PriceChecking?.Invoke(this, new PriceCheckEventArgs()
{
Product = product
}); // Raise the event
PriceChecking -= service1.PriceChecking;
}
else
{
PriceChecking += service2.PriceChecking;
PriceChecking?.Invoke(this, new PriceCheckEventArgs()
{
Product = product
});
PriceChecking -= service2.PriceChecking;
}
}
