office.pas

主要是介绍DELPHI三层应用以及分布式数据库的应用

unit office;

interface

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

type
  Tfrm_office = class(TForm)
    PageControl1: TPageControl;
    TabSheet1: TTabSheet;
    Panel1: TPanel;
    Panel2: TPanel;
    btn_first: TButton;
    btn_prev: TButton;
    btn_next: TButton;
    btn_last: TButton;
    btn_addnew: TButton;
    btn_edit: TButton;
    btn_save: TButton;
    btn_cancel: TButton;
    btn_delete: TButton;
    TabSheet2: TTabSheet;
    GroupBox2: TGroupBox;
    cbbsc: TComboBox;
    GroupBox3: TGroupBox;
    cbjlname: TComboBox;
    Panel3: TPanel;
    btn_brs: TButton;
    btn_qry: TButton;
    btn_clr: TButton;
    btn_prt: TButton;
    GroupBox6: TGroupBox;
    DBGrid1: TDBGrid;
    qoffice: TQuery;
    dsoffice: TDataSource;
    quse: TQuery;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Label6: TLabel;
    Label7: TLabel;
    Label8: TLabel;
    Label12: TLabel;
    Label13: TLabel;
    Label14: TLabel;
    Label15: TLabel;
    Label16: TLabel;
    Label17: TLabel;
    Label18: TLabel;
    EditDBEdit1: TDBEdit;
    EditDBEdit2: TDBEdit;
    EditDBEdit3: TDBEdit;
    EditDBEdit4: TDBEdit;
    EditDBEdit5: TDBEdit;
    EditDBEdit6: TDBEdit;
    EditDBEdit7: TDBEdit;
    EditDBEdit8: TDBEdit;
    EditDBEdit9: TDBEdit;
    EditDBEdit10: TDBEdit;
    EditDBEdit11: TDBEdit;
    EditDBEdit12: TDBEdit;
    EditDBEdit13: TDBEdit;
    EditDBEdit14: TDBEdit;
    EditDBEdit15: TDBEdit;
    Label19: TLabel;
    DBEdit1: TDBEdit;
    Panel4: TPanel;
    Panel6: TPanel;
    Panel7: TPanel;
    Panel8: TPanel;
    Panel9: TPanel;
    Edit1: TEdit;
    Edit2: TEdit;
    Edit3: TEdit;
    Edit4: TEdit;
    Updateoffice: TUpdateSQL;
    GroupBox1: TGroupBox;
    Label10: TLabel;
    Label11: TLabel;
    Label9: TLabel;
    Label20: TLabel;
    DBEdit7: TDBEdit;
    DBEdit8: TDBEdit;
    DBEdit9: TDBEdit;
    DBEdit10: TDBEdit;
    Label21: TLabel;
    DBEditpostcard: TDBEdit;
    Panel5: TPanel;
    procedure FormClose(Sender: TObject; var Action: TCloseAction);

    procedure btn_firstClick(Sender: TObject);
    procedure btn_lastClick(Sender: TObject);
    procedure btn_addnewClick(Sender: TObject);
    procedure btn_saveClick(Sender: TObject);
    procedure btn_prevClick(Sender: TObject);
    procedure btn_nextClick(Sender: TObject);
    procedure btn_editClick(Sender: TObject);
    procedure btn_cancelClick(Sender: TObject);
    procedure btn_deleteClick(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure btn_brsClick(Sender: TObject);
    procedure btn_clrClick(Sender: TObject);
    procedure btn_qryClick(Sender: TObject);
    procedure TabSheet2Enter(Sender: TObject);
    procedure qofficeAfterOpen(DataSet: TDataSet);
    procedure btn_prtClick(Sender: TObject);
    procedure FormKeyPress(Sender: TObject; var Key: Char);
    procedure FormDestroy(Sender: TObject);

  private
    { Private declarations }
    procedure LockEdit;
    //定义函数，来改变各个输入框是否可以编辑，当用户再增加新记录
    //或者编辑记录以前，不可以修改
    procedure UnlockEdit;
    //定义函数，用来让输入文本框可以编辑
    procedure DisableBtn;
    //定义过程，用来使某些按钮失效
    procedure EnableBtn;
    //定义过程，用来使某些按钮有效
  public
    { Public declarations }
  end;

var
  frm_office: Tfrm_office;

implementation

uses data, rp_office, Unit_wxp;

{$R *.dfm}
//***************释放空间********************
procedure Tfrm_office.FormClose(Sender: TObject;
  var Action: TCloseAction);
begin
        Action:=cafree;
end;

//***************以下是自定义的按纽和编辑的可否应用部分*********************
//自定义过程，用来确定每个Edit空间是否可以编辑
procedure Tfrm_office.LockEdit;
begin
panel1.Enabled :=false;
end;

procedure Tfrm_office.UnlockEdit ;
begin
panel1.Enabled :=true;

end;


procedure Tfrm_office.DisableBtn ;
begin
    btn_first.Enabled :=false;
    btn_prev.Enabled :=false;
    btn_next.Enabled :=false;
    btn_last.Enabled :=false;

    btn_addnew.Enabled :=false;
    btn_edit.Enabled :=false;
end;

procedure Tfrm_office.EnableBtn ;
begin
    btn_first.Enabled :=true;
    btn_prev.Enabled :=true;
    btn_next.Enabled :=true;
    btn_last.Enabled :=true;

    btn_addnew.Enabled :=true;
    btn_edit.Enabled :=true;
end;

//***************以上是自定义的按纽和编辑的可否应用部分*********************

//***************以下是按纽操作。*********************

procedure Tfrm_office.btn_firstClick(Sender: TObject);
begin
        if not qoffice.Bof then qoffice.First;

end;

procedure Tfrm_office.btn_lastClick(Sender: TObject);
begin
        if not qoffice.eof then qoffice.Last;

end;
 procedure Tfrm_office.btn_prevClick(Sender: TObject);
begin
        if not qoffice.Bof then qoffice.Prior;
end;

procedure Tfrm_office.btn_nextClick(Sender: TObject);
begin
        if not qoffice.Eof then qoffice.Next;
end;
procedure Tfrm_office.btn_addnewClick(Sender: TObject);
var
  Present: TDateTime;
begin
        UnlockEdit;
        qoffice.append;
        editdbedit6.SetFocus ;
        editdbedit1.Text :=unit_wxp.myOffice ;

        DisableBtn;
        btn_save.Enabled :=true;
        btn_cancel.Enabled :=true;
//给下面审核栏默认值：
//日期：
    Present:= Now;
    qoffice.fieldbyname('录入日期').AsString :=datetimetostr(present);

//人名：
  with quse do begin
    if active then close;
    unprepare;
    sql.Clear;
    sql.Add('select 主管,审核,录入 from pub_z_office');
    prepare;
    open;
    last;
    qoffice.fieldbyname('主管').AsString:=fieldbyname('主管').AsString;
    qoffice.fieldbyname('审核').AsString:=fieldbyname('审核').AsString;
    qoffice.fieldbyname('录入').AsString:=fieldbyname('录入').AsString;
  end;
end;

procedure Tfrm_office.btn_saveClick(Sender: TObject);
begin
      with data.zxjxdata do begin
      if not DatabaseJxw.intransaction then DatabaseJxw.starttransaction;
      try
      qoffice.ApplyUpdates;
      DatabaseJxw.commit;
      qoffice.CommitUpdates ;

        //使编辑框和按钮有反应：
        LockEdit;
        EnableBtn ;
        btn_save.Enabled :=false;
        btn_cancel.Enabled :=false;
      except
        DatabaseJxw.Rollback;
        raise;
      end;

    end;
{     qoffice.Close ;
    qoffice.Open ;
 }
end;



procedure Tfrm_office.btn_editClick(Sender: TObject);
begin

        qoffice.Edit ;

        //让文本框可以编辑
        UnlockEdit;
        //使一些按钮失效
        DisableBtn;
        btn_save.Enabled :=true;
        btn_cancel.Enabled :=true;

end;


procedure Tfrm_office.btn_cancelClick(Sender: TObject);
begin
        qoffice.Cancel ;

        lockedit;

        enablebtn;
        btn_cancel.Enabled :=false;
        btn_save.Enabled :=false;

end;


procedure Tfrm_office.btn_deleteClick(Sender: TObject);
begin
     qoffice.Delete;
      qoffice.ApplyUpdates;

     lockedit;

     enablebtn;
     btn_delete.Enabled :=false;
     btn_save.Enabled :=false;

end;
//***************以上是按纽操作。*********************

procedure Tfrm_office.FormCreate(Sender: TObject);
begin
    lockedit;
    enablebtn;

    with qoffice do begin
    open;
    first;
    end;


end;

procedure Tfrm_office.btn_brsClick(Sender: TObject);
begin
    qoffice.Filtered :=false;
    DBGrid1.DataSource :=dsoffice;
    qofficeAfterOpen(qoffice);
end;

procedure Tfrm_office.btn_clrClick(Sender: TObject);
begin
      cbjlname.Text :='';
      cbbsc.Text :='';
end;

procedure Tfrm_office.btn_qryClick(Sender: TObject);
var
  qitem,q1,q2:string;
begin

  q1 :=cbbsc.Text;
  q2 :=cbjlname.Text;
  if (q1='') and (q2='')
  then  application.MessageBox('您还没有设置查询条件呢！','提示',MB_OK)
  else  begin

    if not(cbbsc.Text='') then
      begin
      q1:=cbbsc.Text;
      q1:=' 办事处名称='''+q1+''' ';
      end
    else
      q1:='';
    if not(cbjlname.Text='') then
      begin
      q2:=cbjlname.Text;
      q2:=' 经理姓名='''+q2+''' ';
      end
    else
      q2:='';

     //将条件累加成子句
     if q1<>'' then qitem:=q1 else qitem:='';

     if qitem='' then
         if q2<>'' then qitem:=q2;
     if qitem<>'' then
         if q2<>'' then qitem:=qitem+' and '+q2 ;


   //根据条件过滤
    with qoffice do begin

      filter:=qitem;
      filtered:=true;
      qofficeAfterOpen(qoffice);
      if not findfirst then  begin
        application.MessageBox('没有您要的信息！','提示',MB_OK);
        btn_clrClick(btn_clr);
        end ;
    end;

 end;

end;

procedure Tfrm_office.TabSheet2Enter(Sender: TObject);
begin
  with quse do begin
    if active then close;
    unprepare;
    sql.Clear;
    sql.Add('select 办事处名称 from pub_z_office');
    prepare;
    open;
      cbbsc.Items.Clear ;
      while not Eof do begin
      cbbsc.Items.Add(FieldByName('办事处名称').AsString);
      Next;
      end;
    end;
  with quse do begin
    if active then close;
    unprepare;
    sql.Clear;
    sql.Add('select 经理姓名 from pub_z_office');
    prepare;
    open;
      cbjlname.Items.Clear ;
      while not Eof do begin
      cbjlname.Items.Add(FieldByName('经理姓名').AsString);
      Next;
      end;
    end;


end;

procedure Tfrm_office.qofficeAfterOpen(DataSet: TDataSet);
var
a1:real;
a2:real;
a3:real;
a4:real;
begin
  a1:=0;
  a2:=0;
  a3:=0;
  a4:=0;
     while not qoffice.Eof  do begin

         a1:=a1+qoffice.fieldbyname('维修人员数').asfloat;
         a2:=a2+qoffice.fieldbyname('其他人员数').asfloat;
         a3:=a3+qoffice.fieldbyname('业务员人数').asfloat;
         a4:=a4+qoffice.fieldbyname('总人数').asfloat;
         qoffice.Next ;
     end;
Edit1.text:=floattostr(a1);
Edit2.text:=floattostr(a2);
Edit3.text:=floattostr(a3);
Edit4.text:=floattostr(a4);

end;

procedure Tfrm_office.btn_prtClick(Sender: TObject);
begin
     frp_office:=Tfrp_office.Create(application);
     frp_office.QuickRep1.Preview;
     frp_office.free;
end;

procedure Tfrm_office.FormKeyPress(Sender: TObject; var Key: Char);
begin
 if Key = #13 then
    begin
      Key := #0;
      Perform(WM_NEXTDLGCTL, 0, 0);
    end;
end;

procedure Tfrm_office.FormDestroy(Sender: TObject);
begin
   frm_office:=nil;
end;

end.