OnColumnClick из TListView для TStringGrid

Материал из DRKB

OnColumnClick из TListView для TStringGrid[править | править код]

{
 There are two routines to implement the OnColumnClick Methods for a TStringGrid.
 Set the first row as fixed and the Defaultdrawing to True.
}


type
  TForm1 = class(TForm)
    StringGrid1: TStringGrid;
    procedure StringGrid1MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure StringGrid1MouseUp(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
  private
    zelle: TRect; // cell
    acol, arow: Integer;
  public
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.StringGrid1MouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
var
  Text: string;
begin
  with stringgrid1 do
  begin
    MouseRoCell(x, y, acol, arow);
    if (arow = 0) and (button = mbleft) then
      case acol of
        0..2:
        begin
          // Draws a 3D Effect (Push)
          // Zeichnet 3D-Effekt (Push)
          zelle := CellRect(acol, arow);
          Text := Cells[acol, arow];
          Canvas.Font := Font;
          Canvas.Brush.Color := clBtnFace;
          Canvas.FillRect(zelle);
          Canvas.TextRect(zelle, zelle.Left + 2, zelle.Top + 2, Text);
          DrawEdge(Canvas.Handle, zelle, 10, 2 or 4 or 8);
          DrawEdge(Canvas.Handle, zelle, 2 or 4, 1);
        end;
      end;
  end;
end;

procedure TForm1.StringGrid1MouseUp(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
var
  Text: string;
begin
  with StringGrid1 do
  begin
    // Draws a 3D-Effect (Up)
    // Zeichnet 3D-Effekt (Up)
    Text := Cells[acol, arow];
    if arow = 0 then
    begin
      Canvas.Font := Font;
      Canvas.Brush.Color := clBtnFace;
      Canvas.FillRect(zelle);
      Canvas.TextRect(zelle, zelle.Left + 2, zelle.Top + 2, Text);
      DrawEdge(Canvas.Handle, zelle, 4, 4 or 8);
      DrawEdge(Canvas.Handle, zelle, 4, 1 or 2);
      MouseToCell(zelle.Left, zelle.Top, acol, arow);
    end;
  end;
  if (arow = 0) and (Button = mbleft) then
    case acol of
      0..2:
      begin
        // Code to be executed...
        // Programmcode der ausgefuhrt werden soll
        ShowMessage('Column ' + IntToStr(acol));
        zelle := stringgrid1.CellRect(1, 1);
      end;
    end;
end;

end.


Source: http://delphiworld.narod.ru/
ID: 01104