CheckBox در DBGrid
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, DB, DBTables, Grids, DBGrids;
type
TForm1 = class(TForm)
DBGrid1: TDBGrid;
Table1: TTable;
DataSource1: TDataSource;
procedure DBGrid1CellClick(Column: TColumn);
procedure DBGrid1DrawColumnCell(Sender: TObject; const Rect: TRect;
DataCol: Integer; Column: TColumn; State: TGridDrawState);
procedure DBGrid1ColEnter(Sender: TObject);
procedure DBGrid1ColExit(Sender: TObject);
private
FOriginalOptions : TDBGridOptions; { Private declarations }
public
procedure SaveBoolean;
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.SaveBoolean;
begin
Self.DBGrid1.SelectedField.Dataset.Edit;
Self.DBGrid1.SelectedField.AsBoolean := not Self.DBGrid1.SelectedField.AsBoolean;
Self.DBGrid1.SelectedField.Dataset.Post;
end;
procedure TForm1.DBGrid1CellClick(Column: TColumn);
begin
if Self.DBGrid1.SelectedField.DataType = ftBoolean then
SaveBoolean();
end;
procedure TForm1.DBGrid1DrawColumnCell(Sender: TObject; const Rect: TRect;
DataCol: Integer; Column: TColumn; State: TGridDrawState);
Const
CtrlState : array[Boolean] of Integer = (DFCS_BUTTONCHECK,
DFCS_BUTTONCHECK or DFCS_CHECKED);
var
CheckBoxRectangle : TRect;
begin
if Column.Field.DataType = ftBoolean then
begin
Self.DBGrid1.Canvas.FillRect(Rect);
CheckBoxRectangle.Left := Rect.Left + 2;
CheckBoxRectangle.Right := Rect.Right - 2;
CheckBoxRectangle.Top := Rect.Top + 2;
CheckBoxRectangle.Bottom := Rect.Bottom - 2;
DrawFrameControl(Self.DBGrid1.Canvas.Handle,
CheckBoxRectangle,
DFC_BUTTON,
CtrlState[Column.Field.AsBoolean]);
end;
end;
procedure TForm1.DBGrid1ColEnter(Sender: TObject);
begin
if Self.DBGrid1.SelectedField.DataType = ftBoolean then
begin
Self.FOriginalOptions := Self.DBGrid1.Options;
Self.DBGrid1.Options := Self.DBGrid1.Options - [dgEditing];
end;
end;
procedure TForm1.DBGrid1ColExit(Sender: TObject);
begin
if Self.DBGrid1.SelectedField.DataType = ftBoolean then
Self.DBGrid1.Options := Self.FOriginalOptions;
end;
end.
اين هم مال فرم
object Form1: TForm1
Left = 192
Top = 114
Width = 953
Height = 778
Caption = 'Form1'
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'MS Sans Serif'
Font.Style = []
OldCreateOrder = False
PixelsPerInch = 96
TextHeight = 13
object DBGrid1: TDBGrid
Left = 0
Top = 0
Width = 945
Height = 744
Align = alClient
DataSource = DataSource1
TabOrder = 0
TitleFont.Charset = DEFAULT_CHARSET
TitleFont.Color = clWindowText
TitleFont.Height = -11
TitleFont.Name = 'MS Sans Serif'
TitleFont.Style = []
OnCellClick = DBGrid1CellClick
OnColEnter = DBGrid1ColEnter
OnColExit = DBGrid1ColExit
OnDrawColumnCell = DBGrid1DrawColumnCell
end
object Table1: TTable
Active = True
DatabaseName = 'DBDEMOS'
TableName = 'reservat.db'
Left = 128
Top = 88
end
object DataSource1: TDataSource
DataSet = Table1
Left = 176
Top = 80
end
end
|
حالت خطی
