Call Remove to delete a specific class from the list when its index is unknown. The value returned is the index of the class in the Items array before it was removed. If the specified object is not found on the list, Remove returns –1. 

After a class is deleted, all the classes that follow it are moved up in index position and Count is decremented. If a class appears more than once on the list, Remove deletes only the first appearance. 

To use an index position (rather than an object reference) to specify the class to be removed, call Delete. 

First 

Count 

Delete 

Insert 

Items 

Pack 

Extract