学用 TStringGrid [2] DefaultColWidth、DefaultRowHeight、Col、Row

本例功能:
1、修改 StringGrid 单元的默认宽与高;
2、添加行和列;
3、确认当前单元并赋值.

运行效果图:

---

//本例代码:
unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ExtCtrls, Grids;

type
  TForm1 = class(TForm)
    StringGrid1: TStringGrid;
    Panel1: TPanel;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    procedure Button1Click(Sender: TObject);
    procedure StringGrid1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

{修改单元宽度与高度}
procedure TForm1.Button1Click(Sender: TObject);
begin
  StringGrid1.DefaultColWidth := 56;
  StringGrid1.DefaultRowHeight := 18;
  TButton(Sender).Caption := '宽与高';
end;

{添加一行}
procedure TForm1.Button2Click(Sender: TObject);
begin
  StringGrid1.RowCount := StringGrid1.RowCount + 1;
  TButton(Sender).Caption := '加一行';
end;

{添加一列}
procedure TForm1.Button3Click(Sender: TObject);
begin
  StringGrid1.ColCount := StringGrid1.ColCount + 1;
  TButton(Sender).Caption := '加一列';
end;

{当前单元}
procedure TForm1.StringGrid1Click(Sender: TObject);
var
  c,r: Integer;
begin
  c := StringGrid1.Col; {当前列}
  r := StringGrid1.Row; {当前行}
  StringGrid1.Cells[c,r] := Format('列:%d;行:%d', [c,r]);
end;

end.