yskmlb.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 yskmlb;

interface

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

type
  Tfrmyskmlb = class(TForm)
    Labname: TLabel;
    Labpass: TLabel;
    Dacomdm: TDBComboBox;
    Dacomyslbmc: TDBComboBox;
    DBGrid1: TDBGrid;
    cmdadd: TButton;
    cmdmodi: TButton;
    cmdsearch: TButton;
    cmdpre: TButton;
    cmdnext: TButton;
    cmdstore: TButton;
    cmddel: TButton;
    cmdquit: TButton;
    DataSource1: TDataSource;
    Database1: TDatabase;
    Tableyskmlb: TTable;
    Tableyskmlb2: TTable;
    cmddis: TButton;
    procedure cmdaddClick(Sender: TObject);
    procedure setbuttons(bval:boolean);
    function storeyskmlb():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
  frmyskmlb: Tfrmyskmlb;
  addrecord:integer;
  m_yslbdm:string;
  m_yslbmc:string;
implementation

{$R *.dfm}

procedure Tfrmyskmlb.cmdaddClick(Sender: TObject);
begin
addrecord:=1;
setbuttons(false);
dacomdm.SetFocus;
Tableyskmlb.Append;
end;

procedure Tfrmyskmlb.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';
dacomdm.Enabled:=not bval;
dacomyslbmc.Enabled:=not bval;
end;

function Tfrmyskmlb.storeyskmlb():boolean;
var
note:array[1..5] of string;
label checkyslbmc;
begin
result:=false;
note[1]:='预算科目类别代码不能为空！';
note[2]:='预算科目类别名称不能为空！';
note[3]:='该类别代码已经存在！';
note[4]:='该类别名称已经存在！';
if dacomdm.Text='' then
   begin
    showmessage(note[1]);
    dacomdm.SetFocus;
    exit;
   end;
if dacomyslbmc.Text='' then
   begin
    showmessage(note[2]);
    dacomyslbmc.SetFocus;
    exit;
   end;
 if addrecord=1 then
   tableyskmlb2.Filter:='dm='''+dacomdm.Text+''''
   //tableuser2.Filter:='yhmc='''+'111'+''''
 else
   if m_yslbdm=dacomdm.Text then
       goto checkyslbmc
   else
     tableyskmlb2.Filter:='dm='''+ dacomdm.Text+'''';
if not tableyskmlb2.Eof then
    begin
     showmessage(note[3]);
     dacomdm.SetFocus;
     exit;
    end;
   //query1.close;
//query1.SQL.clear;

//if addrecord=1 then
 // begin
 //   query1.SQL.add('select * from companyuser where yhmc=:p1');
 //   query1.ParamByname('p1').AsString := dacomname.Text;
  //end
//else
 //  begin
  //  query1.SQL.add('select * from companyuser where yhmc=:p1 and password=:p2');
   // query1.ParamByname('p1').AsString := dacomname.Text;
    //query1.ParamByname('p2').AsString := dacompass.Text;
  //  end;
//Query1.Prepare;
//query1.open;
//if not query1.Eof then
//   begin
//     showmessage(note[4]);
 //    exit;
  // end;
checkyslbmc:
if addrecord=1 then
   tableyskmlb2.Filter:='yslbmc='''+dacomyslbmc.Text+''''
   //tableuser2.Filter:='yhmc='''+'111'+''''
 else
   if m_yslbmc=dacomyslbmc.Text then
     begin
       result:=true;
       exit;
     end
   else
     tableyskmlb2.Filter:='yslbmc='''+ dacomyslbmc.Text+'''';
if not tableyskmlb2.Eof then
    begin
     showmessage(note[4]);
     dacomyslbmc.SetFocus;
     exit;
    end;
result:=true;
end;

procedure Tfrmyskmlb.cmddelClick(Sender: TObject);
begin
Tableyskmlb.Delete
end;


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

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

procedure Tfrmyskmlb.cmdmodiClick(Sender: TObject);
begin
m_yslbmc:=dacomyslbmc.Text;
m_yslbdm:=dacomdm.Text;
setbuttons(false);
addrecord:=2;
tableyskmlb.Edit;
end;

procedure Tfrmyskmlb.cmdquitClick(Sender: TObject);
begin
if cmdquit.Caption='退出' then
  frmyskmlb.Close
else
  begin
    setbuttons(true);
    tableyskmlb.Cancel;
    cmdquit.Caption:='退出'
  end;
end ;

procedure Tfrmyskmlb.cmdsearchClick(Sender: TObject);
var
inputstring:string;
begin
InputString:= InputBox('输入数据', '请输入要查询的预算科目类别代码或名称', '');
if InputString='' then
   exit;
tableyskmlb.Filter:='dm='''+inputstring+'''';
if tableyskmlb.Eof then
 begin
  tableyskmlb.Filter:='yslbmc='''+inputstring+'''';
  if tableyskmlb.Eof then
      begin
        showmessage('没有你要查询的数据！');
        tableyskmlb.Filter:='dm<>'' ''';
        exit;
      end;
  end;
end;

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

procedure Tfrmyskmlb.cmddisClick(Sender: TObject);
begin
  tableyskmlb.Filter:='dm<>'' ''';
end;

end.