var Form1: TForm1; i:integer; bflag,bflag2:boolean;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject); begin adoquery1.Open; end;
procedure TForm1.DBGrid1DrawColumnCell(Sender: TObject; const Rect: TRect; DataCol: Integer; Column: TColumn; State: TGridDrawState); var rect1:TRect; sValue :string; ss:boolean; begin if DataCol = 0 then //設置在第一列 begin if DBGrid1.DataSource.DataSet.state<>dsInsert then i:= DBGrid1.DataSource.DataSet.recno;
Rect1 := Rect; with dbgrid1 do begin Canvas.Brush.Color := clBtnFace; sValue := IntToStr(i); Canvas.FillRect(Rect1); Canvas.Pen.Width := 1; Canvas.Pen.Color := clWhite; Canvas.MoveTo(Rect1.Left, Rect1.Bottom); Canvas.LineTo(Rect1.Left, Rect1.Top); Canvas.LineTo(Rect1.right, Rect1.Top); Canvas.Pen.Color := clBtnShadow; Canvas.LineTo(Rect1.right, Rect1.Bottom - 1); Canvas.LineTo(Rect1.Left, Rect1.Bottom - 1); Rect1.Top := Rect1.Top +1; if State = [gdSelected, gdFocused] then begin if bflag=true then begin sValue:=inttostr(datasource.DataSet.RecordCount +1); i:=datasource.DataSet.RecordCount +1; ss:=true; end; Canvas.Font.Color := clred; end else begin Canvas.Font.Color := clgreen; end; DrawText(Canvas.Handle, PChar(sValue), Length(sValue), Rect1, DT_CENTER); end; if i<=dbgrid1.DataSource.DataSet.RecordCount then begin inc(i); end else begin if (ss<>true) then i:=dbgrid1.DataSource.DataSet.RecordCount+3 -TDrawGrid(DBgrid1).RowCount ; end; end else bflag2:=false; end;
procedure TForm1.DataSource1StateChange(Sender: TObject); begin if dbgrid1.DataSource.DataSet.State <>dsbrowse then begin i:=dbgrid1.DataSource.DataSet.RecordCount+3 -TDrawGrid(DBgrid1).RowCount ; bflag := true; end else bflag:=false; end;
procedure TForm1.DBGrid1ColEnter(Sender: TObject); begin if (bflag=true)and (dbgrid1.SelectedField.FieldNo <>1) then begin i:=dbgrid1.DataSource.DataSet.RecordCount+3 -TDrawGrid(DBgrid1).RowCount; dbgrid1.Refresh; end; end;
procedure TForm1.DBGrid1ColExit(Sender: TObject); begin if (bflag=true)and (dbgrid1.SelectedField.FieldNo =1) then begin i:=dbgrid1.DataSource.DataSet.RecordCount+1; dbgrid1.Refresh; end; end;
Form1: TForm1;
i:integer;
bflag,bflag2:boolean;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
begin
adoquery1.Open;
end;
procedure TForm1.DBGrid1DrawColumnCell(Sender: TObject; const Rect: TRect;
DataCol: Integer; Column: TColumn; State: TGridDrawState);
var
rect1:TRect;
sValue :string;
ss:boolean;
begin
if DataCol = 0 then //設置在第一列
begin
if DBGrid1.DataSource.DataSet.state<>dsInsert then
i:= DBGrid1.DataSource.DataSet.recno;
Rect1 := Rect;
with dbgrid1 do
begin
Canvas.Brush.Color := clBtnFace;
sValue := IntToStr(i);
Canvas.FillRect(Rect1);
Canvas.Pen.Width := 1;
Canvas.Pen.Color := clWhite;
Canvas.MoveTo(Rect1.Left, Rect1.Bottom);
Canvas.LineTo(Rect1.Left, Rect1.Top);
Canvas.LineTo(Rect1.right, Rect1.Top);
Canvas.Pen.Color := clBtnShadow;
Canvas.LineTo(Rect1.right, Rect1.Bottom - 1);
Canvas.LineTo(Rect1.Left, Rect1.Bottom - 1);
Rect1.Top := Rect1.Top +1;
if State = [gdSelected, gdFocused] then
begin
if bflag=true then
begin
sValue:=inttostr(datasource.DataSet.RecordCount +1);
i:=datasource.DataSet.RecordCount +1;
ss:=true;
end;
Canvas.Font.Color := clred;
end
else
begin
Canvas.Font.Color := clgreen;
end;
DrawText(Canvas.Handle, PChar(sValue), Length(sValue), Rect1, DT_CENTER);
end;
if i<=dbgrid1.DataSource.DataSet.RecordCount then
begin
inc(i);
end
else
begin
if (ss<>true) then
i:=dbgrid1.DataSource.DataSet.RecordCount+3 -TDrawGrid(DBgrid1).RowCount ;
end;
end
else bflag2:=false;
end;
procedure TForm1.DataSource1StateChange(Sender: TObject);
begin
if dbgrid1.DataSource.DataSet.State <>dsbrowse then
begin
i:=dbgrid1.DataSource.DataSet.RecordCount+3 -TDrawGrid(DBgrid1).RowCount ;
bflag := true;
end
else
bflag:=false;
end;
procedure TForm1.DBGrid1ColEnter(Sender: TObject);
begin
if (bflag=true)and (dbgrid1.SelectedField.FieldNo <>1) then
begin
i:=dbgrid1.DataSource.DataSet.RecordCount+3 -TDrawGrid(DBgrid1).RowCount;
dbgrid1.Refresh;
end;
end;
procedure TForm1.DBGrid1ColExit(Sender: TObject);
begin
if (bflag=true)and (dbgrid1.SelectedField.FieldNo =1) then
begin
i:=dbgrid1.DataSource.DataSet.RecordCount+1;
dbgrid1.Refresh;
end;
end;
end.