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Performs actions needed before a selection is moved.
Source position: grids.pas line 958
protected procedure TCustomGrid.BeforeMoveSelection( |
const DCol: Integer; |
const DRow: Integer |
); virtual; |
BeforeMoveSelection is called from the MoveExtend method whenever the current grid cursor location is about to change. The destination column and row are specified in the DCol and DRow parameters respectively.
The new location is known to be a valid selectable cell (see TCustomGrid.SelectCell), and is given in absolute cell coordinates. At this point the current grid location has not changed and can be retrieved with Col and Row properties.
The purpose of this method is to call the OnBeforeSelection event handler.
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Moves an extended selection. |
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Determines whether the specified cell can be selected in the grid control. |
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Event handler signalled before changing the Selection in the grid control. |
lazarus-ccr.sourceforge.net |