Returns remainder between number of BeginUpdate and EndUpdate methods called.

property UpdateCount: Integer read FUpdateCount;

When EndUpdate is called and UpdateCount = 0, postponed updates will be processed.

Example

BeginUpdate([uoEvents]); { UpdateCount = 1 }
..
BeginUpdate(); { UpdateCount = 2 }
..
EndUpdate(); { UpdateCount = 1 }
..
EndUpdate(); { UpdateCount = 0, do update }