I need to allow users to select multiple items from a potentially long dropdown list. We've implemented it so that the DDL is in a repeating section. For the user to select another item he adds another section then selects from the list. However once a few repeating sections have been added the thing slows down enormously, presumably because there are now several DDLs all with their own lists of data.
I assume there must be a better way to do this that involves only one DDL and possibly a button which then adds to a table or something. Can someone please give me some clue as to how to best implement this without using code behind? Would be much appreciated.
Thanks in advance.