deletefeeder.pas

完整的delphi书籍源代码,大家有空的时候自己慢慢看看

unit DeleteFeeder;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Buttons, DB, DBTables, Mask, DBCtrls, ExtCtrls;

type
  TDeleteFeederFrm = class(TForm)
    DeleteFeeder_DBNavigator: TDBNavigator;
    DeleteFeeder_Table: TTable;
    DeleteFeeder_DataSource: TDataSource;
    BitBtn2: TBitBtn;
    BitBtn1: TBitBtn;
    Feeder_GroupBox: TGroupBox;
    CompanyName_Label: TLabel;
    LinkMan_Label: TLabel;
    Address_Label: TLabel;
    City_Label: TLabel;
    Region_Label: TLabel;
    Zipcode_Label: TLabel;
    Tel_Label: TLabel;
    Fax_Label: TLabel;
    Homepage_Label: TLabel;
    FeederRemark_GroupBox: TGroupBox;
    FeederRemark_DBEdit: TDBEdit;
    CompanyName_DBEdit: TDBEdit;
    LinkMan_DBEdit: TDBEdit;
    Address_DBEdit: TDBEdit;
    City_DBEdit: TDBEdit;
    Region_DBEdit: TDBEdit;
    Zipcode_DBEdit: TDBEdit;
    Tel_DBEdit: TDBEdit;
    Fax_DBEdit: TDBEdit;
    Homepage_DBEdit: TDBEdit;
  procedure BitBtn1Click(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
    procedure FormShow(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  DeleteFeederFrm: TDeleteFeederFrm;

implementation

{$R *.dfm}
procedure TDeleteFeederFrm.BitBtn1Click(Sender: TObject);
begin     
   DeleteFeederFrm.hide;
end;

procedure TDeleteFeederFrm.BitBtn2Click(Sender: TObject);
var i:integer;
begin
  with  DeleteFeeder_Table do
    begin
      if recordcount=0 then
          begin
           messagebox(DeleteFeederFrm.handle,'数据库为空！','警告',mb_ok+mb_iconwarning);
          end
      else
        begin
          delete;
          update;
          for i:=1 to recordcount do
             begin
              //-------更新供应商数据库------
              edit;
              fieldvalues['FeederID']:=inttostr(i);
              post;
              update;
             end;
         end;
      end;   
end;

procedure TDeleteFeederFrm.FormShow(Sender: TObject);
begin
  DeleteFeeder_Table.active:=False;
  DeleteFeeder_Table.active:=True;
end;

end.