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I’m using Virtual TreeView V5.0.1 (06 Sep 2012) in Delphi XE2. Setting CheckBox := True on a header column property does not enables the checkbox, so here’s the question, how do I enable checkboxes on column headers?
The answer to this seemingly simple question brought a dozen of Google results that tried to hack the header drawing through
OwnerDrawand painting checkboxes manually.Where’s the solution I want to share is quite simple, enable following two items in IDE:
include
hoShowImagesintoVirtualTree.Header.Optionsset andtoCheckSupportintoVirtualTree.TreeOptions.MiscOptionsset.Then you can enable
Header.Column[0].CheckBoxproperty and see desired result.