unitjlunit.~pas

仓储系统

unit UnitJLUnit;

interface

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

type
  TfrmJLUnit = class(TForm)
    Panel2: TPanel;
    btnAdd: TButton;
    btnCancel: TButton;
    btnErase: TButton;
    btnMod: TButton;
    btnSave: TButton;
    btnExit: TButton;
    Panel1: TPanel;
    lblKfdm: TLabel;
    lblKfmc: TLabel;
    edtUnitNo: TEdit;
    edtUnitName: TEdit;
    DBGrid1: TDBGrid;
    dsJLUnit: 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 FormShow(Sender: TObject);
    procedure edtUnitNoExit(Sender: TObject);
    procedure edtUnitNoKeyPress(Sender: TObject; var Key: Char);
    procedure edtUnitNameKeyPress(Sender: TObject; var Key: Char);
    procedure dsJLUnitDataChange(Sender: TObject; Field: TField);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmJLUnit: TfrmJLUnit;
  isAdd,isMod:boolean;
  Recno:Tbookmark;
implementation

uses UnitDm;

{$R *.dfm}

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

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

procedure TfrmJLUnit.btnAddClick(Sender: TObject);
begin
  isAdd:=true;
  isMod:=false;
  Dm.qry_JLUnit.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;
    edtUnitNo.text:='';
    edtUnitName.text:='';
    edtUnitNo.setfocus;
  end;
end;

procedure TfrmJLUnit.btnEraseClick(Sender: TObject);
begin
  if dm.qry_JLUnit.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_JLUnit do
    begin
      edit;
      Delete;
      Close;
      Open;
    end;
  end;
end;

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

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

procedure TfrmJLUnit.btnSaveClick(Sender: TObject);
begin
  if edtUnitNo.text='' then
  begin
    application.MessageBox('注意：'+#13+'  库房代码不能为空!','警告',mb_ok+mb_iconwarning);
    edtUnitNo.setfocus;
    exit;
  end;
  if (length(edtUnitNo.text)>0) and (length(edtUnitNo.text)<4) then
  begin
    application.MessageBox('注意：'+#13+'  库房代码不能少于四个字符!','警告',mb_ok+mb_iconwarning);
    edtUnitNo.setfocus;
    exit;
  end;

  if isadd then
  begin
    DM.qry_JLUnit.DisableControls;
    DM.qry_JLUnit.append;
  end;
  DM.qry_JLUnit.edit;
  DM.qry_JLUnit.fieldbyname('UnitNo').asstring:=edtUnitNo.Text;
  DM.qry_JLUnit.fieldbyname('UnitName').asstring:=edtUnitName.text;
  Dm.qry_JLUnit.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;

  edtUnitNo.Enabled:=true;

  Dm.qry_JLUnit.EnableControls;
  Dm.qry_JLUnit.close;
  Dm.qry_JLUnit.open;
end;

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

  DM.qry_JLUnit.EnableControls;
  DM.qry_JLUnit.close;
  DM.qry_JLUnit.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 TfrmJLUnit.FormShow(Sender: TObject);
begin
  with dm.qry_JLUnit do
  begin
    close;
    sql.Add('select * from JLunit order by UnitNo');
    open;
  end;
end;

procedure TfrmJLUnit.edtUnitNoExit(Sender: TObject);
begin
  if edtUnitNo.text='' then exit;
  if isadd then//增加
  begin
    if dm.qry_JLUnit.Locate('UnitNo',edtUnitNo.text ,[loCaseInsensitive]) then
    begin
      application.MessageBox('注意：'+#13+'  计量单位代码重复,请重新输入!','警告',mb_ok+mb_iconwarning);
      edtUnitNo.text:='';
      edtUnitNo.SetFocus;
      exit;
    end;
  end;
end;

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

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

procedure TfrmJLUnit.dsJLUnitDataChange(Sender: TObject; Field: TField);
begin
  if not isadd then
  begin
    edtUnitNo.Text:=DM.qry_JLUnit.fieldbyname('UnitNo').asstring;
    edtUnitName.text:=DM.qry_JLUnit.fieldbyname('UnitName').asstring;
  end else
    exit;
end;

end.