Tips and Frequently Asked Questions
Using balloons
- Only when theming is enabled in the project options, the balloon will be visible.
- If you reparent the grid, the balloon should only be enabled AFTER the final grid's parent is set.
- Balloon hints are an API from Microsoft Windows and this does not support HTML formatted text. This is a limitation of the Microsoft Windows balloon API.
- There is a limitation to the number of characters in a balloon. This is also a limitation of the Microsoft Windows balloon API that we cannot workaround. For a regular cell comment, there is no such length limitation.
- From TAdvStringGrid version v4.5, several new balloon notification capabilities have been added. See example 76: https://www.tmssoftware.com/site/asg76.asp
- When using AddBalloon& AddImageIdx on the same cell , the AddBalloon will not work. These 2 features are mutually exclusive, only one type per call can be added.
- When grid. Balloon.Enable = true, it will automatically show a balloon when a cell contains text, i.e. it will show the text of the cell in the balloon. To prevent this, add the following event handler:
procedure TForm4.AdvStringGrid1CellBalloon(Sender: TObject; ACol, ARow: Integer; var ATitle, AText: string; var AIcon: Integer); begin if not advstringgrid1.HasBalloon(acol,arow) then begin atitle := ''; atext := ''; end; end;
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