System.Classes.TStrings.UpdateCount

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Delphi

property UpdateCount: Integer read FUpdateCount;

C++

__property int UpdateCount = {read=FUpdateCount, nodefault};

Properties

Type Visibility Source Unit Parent
property protected
System.Classes.pas
System.Classes.hpp
System.Classes TStrings

Description

Indicates the number of calls to BeginUpdate that have not been matched by a call to EndUpdate.

TStrings uses UpdateCount to keep track of calls to the BeginUpdate and EndUpdate methods. Every time a call is made to BeginUpdate, TStrings increments the value of UpdateCount. Every call to EndUpdate causes TStrings to decrement UpdateCount.

When UpdateCount changes from 0 to 1, TStrings calls the SetUpdateState method with a parameter of true. When UpdateCount changes from 1 to 0, TStrings calls the SetUpdateState method with a parameter of false. This allows descendant classes to perform optimizations when handling multiple updates.

See Also