cai_ren.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_ren;

interface

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

type
  Tcai_re = class(TForm)
    Label1: TLabel;
    SpeedButton1: TSpeedButton;
    SpeedButton2: TSpeedButton;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label7: TLabel;
    DBGrid1: TDBGrid;
    Table1: TTable;
    DataSource1: TDataSource;
    SpeedButton3: TSpeedButton;
    DBEdit1: TDBEdit;
    DBEdit2: TDBEdit;
    DBEdit4: TDBEdit;
    DBEdit5: TDBEdit;
    DBComboBox1: TDBComboBox;
    DBNavigator1: TDBNavigator;
    SpeedButton4: TSpeedButton;
    Table2: TTable;
    Query1: TQuery;
    procedure SpeedButton1Click(Sender: TObject);
    procedure Table1AfterScroll(DataSet: TDataSet);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure SpeedButton4Click(Sender: TObject);
    procedure DBEdit1KeyPress(Sender: TObject; var Key: Char);
    procedure DBEdit2KeyPress(Sender: TObject; var Key: Char);
    procedure DBComboBox1KeyPress(Sender: TObject; var Key: Char);
    procedure DBEdit4KeyPress(Sender: TObject; var Key: Char);
    procedure DBEdit5KeyPress(Sender: TObject; var Key: Char);
    procedure SpeedButton2Click(Sender: TObject);
    procedure SpeedButton3Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  cai_re: Tcai_re;

implementation

{$R *.dfm}

procedure Tcai_re.SpeedButton1Click(Sender: TObject);
begin
table1.Last;
table1.Append;
table1.Edit;
dbedit1.SetFocus;
begin
dbedit1.ReadOnly:=false;
dbedit2.ReadOnly:=false;
dbcombobox1.ReadOnly:=false;
 dbedit4.ReadOnly:=false;
dbedit5.ReadOnly:=false;
end;

end;

procedure Tcai_re.Table1AfterScroll(DataSet: TDataSet);
begin
dbedit1.ReadOnly:=true;
dbedit2.ReadOnly:=true;
dbcombobox1.ReadOnly:=true;
 dbedit4.ReadOnly:=true;
dbedit5.ReadOnly:=true;
end;

procedure Tcai_re.FormClose(Sender: TObject; var Action: TCloseAction);
begin
action:=cafree;
end;

procedure Tcai_re.SpeedButton4Click(Sender: TObject);
begin
close
end;

procedure Tcai_re.DBEdit1KeyPress(Sender: TObject; var Key: Char);
begin
if key=chr(13) then
begin
query1.Active:=false;
query1.SQL.Clear;
query1.SQL.Add('select cai_ren_no from cai_gou_ren where cai_ren_no=:kk');
query1.ParamByName('kk').AsString:=dbedit1.Text;
query1.Prepare;
query1.Active:=true;
if query1.FieldByName('cai_ren_no').AsString=dbedit1.Text then
 begin
showmessage('蹦潦