Name 

Description 

 

OnCellClick 

Occurs when the user releases the mouse in one of the cells of the grid. 

 

OnColEnter 

Occurs when focus moves to a new cell in the grid. 

 

OnColExit 

Occurs just before a cell in the grid loses input focus. 

 

OnColumnMoved 

Occurs when the user moves a column using the mouse. 

 

OnDblClick 

Occurs when the user double-clicks the left mouse button when the mouse pointer is over the control. 

 

OnDragDrop 

Occurs when the user drops an object being dragged. 

 

OnDragOver 

Occurs when the user drags an object over a control. 

 

OnDrawColumnCell 

Occurs when the grid needs to paint a cell. 

 

OnDrawDataCell 

Occurs when the grid needs to paint a cell if the State property of Columns is csDefault. 

 

OnEditButtonClick 

Occurs when the user presses the ellipsis button in a grid column. 

 

OnEndDock 

Occurs when the dragging of an object ends, either by docking the object or by canceling the dragging. 

 

OnEndDrag 

Occurs when the dragging of an object ends, either by dropping the object or by canceling the dragging. 

 

OnEnter 

Occurs when a control receives the input focus. 

 

OnExit 

Occurs when the input focus shifts away from one control to another. 

 

OnKeyDown 

Occurs when a user presses any key while the control has focus. 

 

OnKeyPress 

Occurs when a key is pressed. 

 

OnKeyUp 

Occurs when the user releases a key that has been pressed. 

 

OnMouseActivate 

Occurs when the user presses a mouse button with the mouse pointer over a control and the parent form is not active. 

 

OnMouseDown 

Occurs when the user presses a mouse button with the mouse pointer over a control. 

 

OnMouseEnter 

Occurs when the user moves the mouse into a control. 

 

OnMouseLeave 

Occurs when the user moves the mouse outside of a control. 

 

OnMouseMove 

Occurs when the user moves the mouse pointer while the mouse pointer is over a control. 

 

OnMouseUp 

Occurs when the user releases a mouse button that was pressed with the mouse pointer over a component. 

 

OnMouseWheel 

Occurs when the mouse wheel is rotated. 

 

OnMouseWheelDown 

Occurs when the mouse wheel is rotated downward. 

 

OnMouseWheelUp 

Occurs when the mouse wheel is rotated upward. 

 

OnStartDock 

Occurs when the user begins to drag a control with a DragKind of dkDock. 

 

OnStartDrag 

Occurs when the user begins to drag the control or an object it contains by left-clicking on the control and holding the mouse button down. 

 

OnTitleClick 

Occurs when the user releases the mouse in one of the column headers.