FMX.Grid.TGridModel.OnDrawColumnHeader
Delphi
property OnDrawColumnHeader: TDrawColumnHeaderEvent read FOnDrawColumnHeader write FOnDrawColumnHeader;
C++
__property TDrawColumnHeaderEvent OnDrawColumnHeader = {read=FOnDrawColumnHeader, write=FOnDrawColumnHeader};
Properties
| Type | Visibility | Source | Unit | Parent | 
|---|---|---|---|---|
| event | public | FMX.Grid.pas FMX.Grid.hpp | FMX.Grid | TGridModel | 
Description
Occurs when the presentation needs to draw a column header, and allows you to draw the column header yourself to customize it.
The handler of OnDrawColumnHeader receives the following parameters:
- Senderis the presentation object that owns this model.
- Canvasis the canvas where you can draw.
- Columnis the column that contains the header.
- Boundsindicates the header boundaries.