unitmateclass.pas

仓储系统

unit UnitMateClass;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, DB, Grids, DBGrids, StdCtrls, ExtCtrls;

type
  TfrmMateClass = class(TForm)
    Panel2: TPanel;
    btnAdd: TButton;
    btnCancel: TButton;
    btnErase: TButton;
    btnMod: TButton;
    btnSave: TButton;
    btnExit: TButton;
    Panel1: TPanel;
    Label3: TLabel;
    Label4: TLabel;
    Label1: TLabel;
    Label2: TLabel;
    edtClassCode: TEdit;
    edtClassName: TEdit;
    DBGrid1: TDBGrid;
    dsMateClass: TDataSource;
    procedure btnAddClick(Sender: TObject);
    procedure btnEraseClick(Sender: TObject);
    procedure btnModClick(Sender: TObject);
    procedure btnSaveClick(Sender: TObject);
    procedure btnCancelClick(Sender: TObject);
    procedure btnExitClick(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure edtClassCodeKeyPress(Sender: TObject; var Key: Char);
    procedure edtClassNameKeyPress(Sender: TObject; var Key: Char);
    procedure edtClassCodeExit(Sender: TObject);
    procedure dsMateClassDataChange(Sender: TObject; Field: TField);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmMateClass: TfrmMateClass;
  isAdd,isMod:boolean;
  Recno:TBookMark;
implementation

uses UnitDm;

{$R *.dfm}

procedure TfrmMateClass.btnAddClick(Sender: TObject);
begin
  isAdd:=true;
  isMod:=false;
  Dm.qry_MateClass.last;
  if btnAdd.caption='增加(&A)' then
  begin
    btnAdd.enabled:=false;
    btnErase.enabled:=false;
    btnMod.enabled:=false;
    btnSave.enabled:=true;
    btnCancel.enabled:=true;

    panel1.enabled:=true;
    edtClassCode.text:='';
    edtClassName.text:='';
    edtClassCode.setfocus;
  end;
end;

procedure TfrmMateClass.btnEraseClick(Sender: TObject);
begin
  if dm.qry_MateClass.RecordCount=0 then exit;
  if application.MessageBox('确信删除当前记录?','警告',mb_okcancel+mb_iconwarning)=IDOK then
  begin
    with dm.qry_MateClass do
    begin
      edit;
      Delete;
      Close;
      Open;
    end;
  end;
end;

procedure TfrmMateClass.btnModClick(Sender: TObject);
begin
  if dm.qry_MateClass.RecordCount=0 then exit;
  //获得当前的记录位置
  Recno:=dm.qry_MateClass.GetBookmark;
  //关闭与表的联系-------------
  dm.qry_MateClass.DisableControls;
  //标志位--------
  isMod:=true;
  isAdd:=false;

  btnAdd.Enabled:=false;
  btnErase.Enabled:=false;
  btnMod.Enabled:=false;
  btnSave.Enabled:=true;
  btnCancel.Enabled:=true;
  edtClassName.enabled:=true;
  panel1.enabled:=true;
  edtClassName.setfocus;
end;

procedure TfrmMateClass.btnSaveClick(Sender: TObject);
begin
  if edtClassCode.text='' then
  begin
    application.MessageBox('注意：'+#13+'  物料类别代码不能为空!','警告',mb_ok+mb_iconwarning);
    edtClassCode.setfocus;
    exit;
  end;
  if (length(edtClassCode.text)>0) and (length(edtClassCode.text)<3) then
  begin
    application.MessageBox('注意：'+#13+'  物料类别代码不能少于三个字符!','警告',mb_ok+mb_iconwarning);
    edtClassCode.setfocus;
    exit;
  end;

  if isadd then
  begin
    DM.qry_MateClass.DisableControls;
    DM.qry_MateClass.append;
  end;
  DM.qry_MateClass.edit;
  DM.qry_MateClass.fieldbyname('MClass_No').asstring:=edtClassCode.Text;
  DM.qry_MateClass.fieldbyname('MClass_Name').asstring:=edtClassName.text;
  Dm.qry_MateClass.post;
//---------------------------------------
  if isAdd then isAdd:=false;
  if isMod then isMod:=false;

  Panel1.Enabled:=false;

  btnadd.enabled:=true;
  btnadd.SetFocus;
  btnErase.enabled:=true;
  btnMod.enabled:=true;
  btnSave.enabled:=false;
  btnCancel.enabled:=false;

  edtClassCode.Enabled:=true;

  Dm.qry_MateClass.EnableControls;
  Dm.qry_MateClass.close;
  Dm.qry_MateClass.open;
end;

procedure TfrmMateClass.btnCancelClick(Sender: TObject);
begin
  if isAdd then isadd:=false;
  if isMod then isMod:=false;

  DM.qry_MateClass.EnableControls;
  DM.qry_MateClass.close;
  DM.qry_MateClass.open;

  if btnCancel.caption='取消(&C)' then
  begin
    panel1.enabled:=false;
    btnAdd.enabled:=true;
    btnErase.enabled:=true;
    btnMod.enabled:=true;
    btnSave.enabled:=false;
    btnCancel.enabled:=false;
  end;
end;

procedure TfrmMateClass.btnExitClick(Sender: TObject);
begin
  close;
end;

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

procedure TfrmMateClass.edtClassCodeKeyPress(Sender: TObject;
  var Key: Char);
begin
  if key=#13 then
  begin
    key:=#0;
    perform(cm_dialogkey,vk_tab,0);
  end;
end;

procedure TfrmMateClass.edtClassNameKeyPress(Sender: TObject;
  var Key: Char);
begin
  if key=#13 then
  begin
    key:=#0;
    btnSave.SetFocus;
  end;
end;

procedure TfrmMateClass.edtClassCodeExit(Sender: TObject);
begin
  if edtClassCode.text='' then exit;
  if isadd then//增加
  begin
    if dm.qry_MateClass.Locate('MClass_No',edtClassCode.text ,[loCaseInsensitive]) then
    begin
      application.MessageBox('注意：'+#13+'  物料分类代码重复,请重新输入!','警告',mb_ok+mb_iconwarning);
      edtClassCode.text:='';
      edtClassCode.SetFocus;
      exit;
    end;
  end;
end;

procedure TfrmMateClass.dsMateClassDataChange(Sender: TObject;
  Field: TField);
begin
   if not isadd then
  begin
    edtClassCode.Text:=DM.qry_MateClass.fieldbyname('MClass_No').asstring;
    edtClassName.text:=DM.qry_MateClass.fieldbyname('MClass_Name').asstring;
  end else
    exit;
end;

procedure TfrmMateClass.FormCreate(Sender: TObject);
begin
   with dm.qry_MateClass do
  begin
    close;
    sql.Add('select * from MateClass order by MClass_No');
    open;
  end;
end;

end.