i have a list with: Circle, Triangle, Rectangle in it
i want to edit the element with the id X but list[X].radius; is not available because it is a child class.
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i have a list with: Circle, Triangle, Rectangle in it
i want to edit the element with the id X but list[X].radius; is not available because it is a child class.
When you have a mixed list and want to access members defined for the derived types, you have to cast to the derived type.
Of course, by the virtue of simply having a mixed list, you’re saying that you generally do not care about the differences between the derived types, you’re content with using the base polymorphically. If you find yourself in a different position, you should perhaps rethink your strategy for storing or consuming these elements.