参考以下程序:1.//在StringGrid: SpaceGrid中指定的Col, Row嵌入一个ComboBox: SpacingCombo var Rect: TRect; Pnt: TPoint; begin with SpaceGrid do begin Rect := CellRect(Col, Row); with Rect do begin Pnt := SpacingCombo.Parent.ScreenToClient((SpaceGrid.ClientToScreen(Point(Left, Top)))); SpacingCombo.SetBounds(Pnt.X, Pnt.Y, Right - Left, Bottom - Top); SpacingCombo.Show; end; end;
//***********************************使StringGrid中的一列具有Check功能,和CheckBox效果一样//***********************************unit Unit1;interfaceuses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, Grids;type TForm1 = class(TForm) grid: TStringGrid; procedure FormCreate(Sender: TObject); procedure gridDrawCell(Sender: TObject; ACol, ARow: Integer; Rect: TRect; State: TGridDrawState); procedure gridClick(Sender: TObject); private { Private declarations } public { Public declarations } end;var Form1: TForm1; fcheck,fnocheck:tbitmap; implementation{$R *.DFM}procedure TForm1.FormCreate(Sender: TObject); var i:SmallInt; bmp:TBitmap; begin FCheck:= TBitmap.Create; FNoCheck:= TBitmap.Create; bmp:= TBitmap.create; try bmp.handle := LoadBitmap( 0, PChar(OBM_CHECKBOXES )); With FNoCheck Do Begin width := bmp.width div 4; height := bmp.height div 3; canvas.copyrect( canvas.cliprect, bmp.canvas, canvas.cliprect ); End; With FCheck Do Begin width := bmp.width div 4; height := bmp.height div 3; canvas.copyrect( canvas.cliprect, bmp.canvas, rect( width, 0, 2*width, height )); End; finally bmp.free end; end; procedure TForm1.gridDrawCell(Sender: TObject; ACol, ARow: Integer; Rect: TRect; State: TGridDrawState); begin if not (gdFixed in State) then with TStringGrid(Sender).Canvas do begin brush.Color:=clWindow; FillRect(Rect); if Grid.Cells[ACol,ARow]='yes' then Draw( (rect.right + rect.left - FCheck.width) div 2, (rect.bottom + rect.top - FCheck.height) div 2, FCheck ) else Draw( (rect.right + rect.left - FCheck.width) div 2, (rect.bottom + rect.top - FCheck.height) div 2, FNoCheck ); end; end;procedure TForm1.gridClick(Sender: TObject); begin if grid.Cells[grid.col,grid.row]='yes' then grid.Cells[grid.col,grid.row]:='no' else grid.Cells[grid.col,grid.row]:='yes'; end;end.
var
Rect: TRect;
Pnt: TPoint;
begin
with SpaceGrid do
begin
Rect := CellRect(Col, Row);
with Rect do
begin
Pnt := SpacingCombo.Parent.ScreenToClient((SpaceGrid.ClientToScreen(Point(Left, Top))));
SpacingCombo.SetBounds(Pnt.X, Pnt.Y, Right - Left, Bottom - Top);
SpacingCombo.Show;
end;
end;
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
Grids;type
TForm1 = class(TForm)
grid: TStringGrid;
procedure FormCreate(Sender: TObject);
procedure gridDrawCell(Sender: TObject; ACol, ARow: Integer;
Rect: TRect; State: TGridDrawState);
procedure gridClick(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;
fcheck,fnocheck:tbitmap;
implementation{$R *.DFM}procedure TForm1.FormCreate(Sender: TObject);
var
i:SmallInt;
bmp:TBitmap;
begin
FCheck:= TBitmap.Create;
FNoCheck:= TBitmap.Create;
bmp:= TBitmap.create;
try
bmp.handle := LoadBitmap( 0, PChar(OBM_CHECKBOXES ));
With FNoCheck Do Begin
width := bmp.width div 4;
height := bmp.height div 3;
canvas.copyrect( canvas.cliprect, bmp.canvas, canvas.cliprect );
End;
With FCheck Do Begin
width := bmp.width div 4;
height := bmp.height div 3;
canvas.copyrect(
canvas.cliprect,
bmp.canvas,
rect( width, 0, 2*width, height ));
End;
finally
bmp.free
end;
end;
procedure TForm1.gridDrawCell(Sender: TObject; ACol, ARow: Integer;
Rect: TRect; State: TGridDrawState);
begin
if not (gdFixed in State) then
with TStringGrid(Sender).Canvas do
begin
brush.Color:=clWindow;
FillRect(Rect);
if Grid.Cells[ACol,ARow]='yes' then
Draw( (rect.right + rect.left - FCheck.width) div 2,
(rect.bottom + rect.top - FCheck.height) div 2,
FCheck )
else
Draw( (rect.right + rect.left - FCheck.width) div 2,
(rect.bottom + rect.top - FCheck.height) div 2,
FNoCheck );
end;
end;procedure TForm1.gridClick(Sender: TObject);
begin
if grid.Cells[grid.col,grid.row]='yes' then
grid.Cells[grid.col,grid.row]:='no'
else
grid.Cells[grid.col,grid.row]:='yes';
end;end.