pzlb.pas

本系统包括的功能有,预算项目管理,查询,数据库维护,系统拥护管理等

unit pzlb;

interface

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

type
  Tfrmpzlb = class(TForm)
    Labpass: TLabel;
    Dacompzlbmc: TDBComboBox;
    DBGrid1: TDBGrid;
    cmdadd: TButton;
    cmdmodi: TButton;
    cmdsearch: TButton;
    cmdpre: TButton;
    cmdnext: TButton;
    cmdstore: TButton;
    cmddel: TButton;
    cmdquit: TButton;
    cmddis: TButton;
    DataSource1: TDataSource;
    Tablepzlb: TTable;
    Database1: TDatabase;
    Tablepzlb2: TTable;
    procedure cmdaddClick(Sender: TObject);
    procedure setbuttons(bval:boolean);
    function storepzlb():boolean;
    procedure cmddelClick(Sender: TObject);
    procedure cmdstoreClick(Sender: TObject);
    procedure cmdpreClick(Sender: TObject);
    procedure cmdnextClick(Sender: TObject);
    procedure cmdmodiClick(Sender: TObject);
    procedure cmdquitClick(Sender: TObject);
    procedure cmdsearchClick(Sender: TObject);
    procedure cmddisClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmpzlb: Tfrmpzlb;
  addrecord:integer;
  m_pzlbmc:string;
implementation

{$R *.dfm}

procedure Tfrmpzlb.cmdaddClick(Sender: TObject);
begin
addrecord:=1;
setbuttons(false);
dacompzlbmc.SetFocus;
Tablepzlb.Append;
end;

procedure Tfrmpzlb.setbuttons(bval:boolean);
begin
cmdadd.Enabled:=bval;
cmdmodi.Enabled:=bval;
cmdsearch.Enabled:=bval;
cmddis.Enabled:=bval;
cmdpre.Enabled:=bval;
cmdnext.Enabled:=bval;
cmddel.Enabled:=bval;
cmdstore.Enabled:=not bval;
//cmddel.Enabled:=not bval;
if cmdquit.Caption='退出' then
  cmdquit.Caption:='取消'
else
cmdquit.Caption:='退出';
dacompzlbmc.Enabled:=not bval;
end;

function Tfrmpzlb.storepzlb():boolean;
var
note:array[1..5] of string;
begin
result:=false;
note[1]:='凭证类别名称不能为空！';
note[2]:='该凭证类别名称已经存在！';
//note[4]:='该类别名称已经存在！';
if dacompzlbmc.Text='' then
   begin
    showmessage(note[1]);
    dacompzlbmc.SetFocus;
    exit;
   end;
 if addrecord=1 then
   Tablepzlb2.Filter:='pzlbmc='''+dacompzlbmc.Text+''''
   //tableuser2.Filter:='yhmc='''+'111'+''''
 else
   if m_pzlbmc=dacompzlbmc.Text then
     begin
       result:=true;
       exit;
     end
   else
     Tablepzlb2.Filter:='pzlbmc='''+ dacompzlbmc.Text+'''';
if not Tablepzlb2.Eof then
    begin
     showmessage(note[2]);
     dacompzlbmc.SetFocus;
     exit;
    end;
result:=true;
end;

procedure Tfrmpzlb.cmddelClick(Sender: TObject);
begin
Tablepzlb.Delete
end;


procedure Tfrmpzlb.cmdstoreClick(Sender: TObject);
begin
if storepzlb=true then
    begin
      Tablepzlb.Post;
      setbuttons(true);
    end;
end;
procedure Tfrmpzlb.cmdpreClick(Sender: TObject);
begin
 Tablepzlb.MoveBy(-1);
 if Tablepzlb.Bof then
   begin
    showmessage('这是第一条记录！');
   // tableuser.MoveBy(1);
   end;
end;

procedure Tfrmpzlb.cmdnextClick(Sender: TObject);
begin
Tablepzlb.MoveBy(1);
 if Tablepzlb.Eof  then
   begin
    showmessage('这是最后一条记录！');
    //tableuser.MoveBy(-1);
   end;
end;

procedure Tfrmpzlb.cmdmodiClick(Sender: TObject);
begin
m_pzlbmc:=dacompzlbmc.Text;
setbuttons(false);
addrecord:=2;
Tablepzlb.Edit;
end;

procedure Tfrmpzlb.cmdquitClick(Sender: TObject);
begin
if cmdquit.Caption='退出' then
  frmpzlb.Close
else
  begin
    setbuttons(true);
    Tablepzlb.Cancel;
    cmdquit.Caption:='退出'
  end;
end ;

procedure Tfrmpzlb.cmdsearchClick(Sender: TObject);
var
inputstring:string;
begin
InputString:= InputBox('输入数据', '请输入要查询的凭证类别名称', '');
if InputString='' then
   exit;
Tablepzlb.Filter:='pzlbmc='''+inputstring+'''';
if Tablepzlb.Eof then
 begin
        showmessage('没有你要查询的数据！');
        Tablepzlb.Filter:='pzlbmc<>'' ''';
        exit;
 end;
end;

//procedure Tfrmuser.cmddisClick(Sender: TObject);
//begin
//tableuser.Filter:='yhmc<>'' ''';
//end;

procedure Tfrmpzlb.cmddisClick(Sender: TObject);
begin
  Tablepzlb.Filter:='pzlbmc<>''''';
end;

end.