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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?

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Kromster
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1 Answers1

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The answer to this seemingly simple question brought a dozen of Google results that tried to hack the header drawing through OwnerDraw and painting checkboxes manually.

Where's the solution I want to share is quite simple, enable following two items in IDE: include hoShowImages into VirtualTree.Header.Options set and toCheckSupport into VirtualTree.TreeOptions.MiscOptions set.

Then you can enable Header.Column[0].CheckBox property and see desired result.

Kromster
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    Also, if you want to use the checkbox, say to select all items in a list, it goes under the header's OnClick. – Aaron Jun 26 '13 at 17:46