System.Classes.TThreadList.Duplicates

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Delphi

property Duplicates: TDuplicates read FDuplicates write FDuplicates;

C++

__property System::Types::TDuplicates Duplicates = {read=FDuplicates, write=FDuplicates, nodefault};

Properties

Type	Visibility	Source	Unit	Parent
property	public	System.Classes.pas System.Classes.hpp	System.Classes	TThreadList

Description

Indicates whether the thread list allows duplicate entries.

Set Duplicates to specify what should happen when an attempt is made to add a duplicate item to the list. The value of Duplicates should be one of the following.

Value	Meaning
dupIgnore	Ignore attempts to add duplicate items to the list.
dupError	raise an EListError exception when an attempt is made to add duplicate items to the list.
dupAccept	Permit duplicate items in the list.

Set Duplicates before adding any items to the list. Setting Duplicates to dupIgnore or dupError does nothing about duplicates that are already in the list.

Note: Setting duplicates to dupIgnore (the default) or dupError can be computationally expensive if the list has many items.

See Also

• Clear