Delphi TStringGrid multi select, determining selected rows

问题

Is there anyway to determine which rows are currently selected in a multi-select TStringGrid, or a TCustomGrid for that matter. A property would be ideal.

I know that there is the gdSelected property that gets set in the DrawCell event,

procedure DrawCell(ACol, ARow: Longint; ARect: TRect; AState: TGridDrawState);

I can check AState for gdSelected, and keep track of this in an array somewhere, but this seems kludgey.

回答1:

I guess you are talking about a range-select string grid, that is, a string grid with goRangeSelect in Options. Then you can use the Selection property. This is (essentially) a TRect in which you can find the upper-left and lower-right cell in the range selection.

回答2:

Oooh, I'm use StringGrid.Selection.BottomRight.Y to determine rows and StringGrid.Selection.BottomRight.X for columns.

回答3:

Use string grid selection property StringGrid.Selection.top will give you the top selected row, StringGrid.Selection.bottomwill give you the end selected row, where the selection stops.

Example:

If you select from row 3 to row 6 in a string grid thenStringGrid.Selection.top will give you 3 as an output value StringGrid.Selection.bottom will give you 6 as an output value, and remaining values you can get by iterating from the top to bottom.

来源：https://stackoverflow.com/questions/5950918/delphi-tstringgrid-multi-select-determining-selected-rows