// The definition of the extension method for the class OrderErrorCollection.
public static void PrintOrderErrors(this OrderErrorCollection orderErrorCollection)
{
Console.WriteLine();
foreach (OrderError orderError in orderErrorCollection)
{
Console.WriteLine(orderError.ErrorText);
}
}
// Overload the operator + for two OrderErrorCollection objects.
public static OrderErrorCollection operator +(OrderErrorCollection orderErrorCollection1, OrderErrorCollection orderErrorCollection2)
{
OrderErrorCollection orderErrorCollection = new OrderErrorCollection();
if (null != orderErrorCollection1)
{
foreach (OrderError orderError in orderErrorCollection1)
{
orderErrorCollection.Add(orderError);
}
}
if (null != orderErrorCollection2)
{
foreach (OrderError orderError in orderErrorCollection2)
{
orderErrorCollection.Add(orderError);
}
}
return(orderErrorCollection);
}