cai_den1.~pas

采购管理系统：delphi+sql实现了企业采购自动化作业流程

unit cai_den1;
interface

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

type
  Tcai_de = class(TForm)
    Label1: TLabel;
    Label3: TLabel;
    Label2: TLabel;
    Edit2: TEdit;
    Edit1: TEdit;
    Edit3: TEdit;
    Button1: TButton;
    Button2: TButton;
    Table1: TTable;
    DataSource1: TDataSource;
    Database1: TDatabase;
    Table2: TTable;
    Database2: TDatabase;
    Image1: TImage;
    Query1: TQuery;
    procedure Button2Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Edit3KeyPress(Sender: TObject; var Key: Char);
    procedure Edit1KeyPress(Sender: TObject; var Key: Char);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure FormCreate(Sender: TObject);
    procedure FormActivate(Sender: TObject);
    procedure Database1Login(Database: TDatabase; LoginParams: TStrings);
    procedure Database2Login(Database: TDatabase; LoginParams: TStrings);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  cai_de: Tcai_de;

implementation
 uses cai_gou_main,data_cai;
{$R *.dfm}

procedure Tcai_de.Button2Click(Sender: TObject);
begin
application.Terminate;

end;

procedure Tcai_de.Button1Click(Sender: TObject);
 var SavePlace: TBookmark; PrevValue: Variant; cai_gou_mai:Tcai_gou_mai;
begin
table1.Active:=false;
table1.IndexFieldNames:='username';
table1.Active:=true;
if table1.FindKey([edit3.text]) then
begin
SavePlace:=table1.GetBookmark;
PrevValue:=table1.Fields[1].Value;
table1.GotoBookmark(SavePlace);
if PrevValue=edit1.Text then
begin
cai_gou_mai:=Tcai_gou_mai.Create(application);
//
query1.Active:=false;
query1.SQL.Clear;
query1.SQL.Add('select gong_si_jian from gong_si ' );
query1.Prepare;
query1.Active:=true;
cai_gou_mai.Caption:=query1.FieldByName('gong_si_jian').AsString+'蹦潦恨瞶╰参';
//
cai_gou_mai.ren:=table1.FieldByName('usxm').AsString;
cai_gou_mai.ren_no:=table1.FieldByName('Username').AsString;
table1.Edit;
table1.FieldByName('yes_or_no').AsString:='