GridDelete Event 193
Applies To: Grid
Description
If enabled, this event is reported when the user presses Delete and there are selected cells in the Grid. The default action of the event is to empty the selected cells. You may disable this effect entirely by setting the action code of the event to ¯1. You may also disable the delete operation by returning 0 from a callback function.
The event message reported as the result of ⎕DQ, or supplied as the right argument to your callback function, is a 4-element vector as follows:
[1] |
Object | ref or character vector |
[2] |
Event | 'GridDelete' or 193 |
[3] |
Start | 2-element integer vector or matrix containing the row, column address(es) of the top left cell(s) in the selected block(s) |
[4] |
End | 2-element integer vector or matrix containing the row, column address(es) of the bottom right cell(s) in the selected block(s) |
Note that the values of Start and End are sensitive to the index origin, ⎕IO.
If more than one block of cells is selected, Start and End are matrices whose rows identify the start and end cells of each of the selected blocks.