book_shop / QSale_Cost

unit QSale_Cost;

interface

uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, DBCtrls, DBTables, Db, Grids, DBGrids;

type
TForm_QSale_Cost = class(TForm)
DBGrid1: TDBGrid;
Query1: TQuery;
DataSource1: TDataSource;
Table_Books1: TTable;
DataSource_Books1: TDataSource;
DBLookupComboBox1: TDBLookupComboBox;
Button_Execute: TButton;
Button_Close: TButton;
Label1: TLabel;
procedure Button_CloseClick(Sender: TObject);
procedure Button_ExecuteClick(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form_QSale_Cost: TForm_QSale_Cost;

implementation

{$R *.DFM}

procedure TForm_QSale_Cost.Button_CloseClick(Sender: TObject);
begin
close;
end;

procedure TForm_QSale_Cost.Button_ExecuteClick(Sender: TObject);
begin
try
Query1.Active:=false;
Query1.Params[0].Value:=DBLookUpComboBox1.KeyValue;
Query1.Active:=true;
except
on error: EDatabaseError do begin
MessageDlg('При выполнении запроса произошла ошибка:'+#13+#13+
error.Message ,mtError,[mbOK],0);
end;
end;
end;

end.