TCustomDBGrid.DefaultDrawColumnCell procedure
Default method used to draw cells in a specified column for the grid control.
Declaration
procedure DefaultDrawColumnCell(const Rect: TRect; DataCol: Integer;
Column: TColumn; State: TGridDrawState)Arguments
Rect | Canvas rectangle for the cell. |
DataCol | Index of the Field for cell data. |
Column | Column definition for the cell. |
State | Grid drawing state for the cell. |
Description
DefaultDrawColumnCell is the default method used for drawing cells
in a column. DefaultDrawColumnCell uses the specified column to get the Field
and the editor style needed to render the cell.
Check box columns are drawn by calling the DrawCheckBoxBitmaps method. Other
editor styles use the DisplayText for the TField as the value drawn using the
DrawCellText method. Please note that Fields with a DataType property of
ftBlob are always rendered as the string literal
'(blob)'
.
Use the OnDrawColumnCell event handler to render a cell when DefaultDrawing is not enabled for the grid control.
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.