saleratio.pas

主要是介绍DELPHI三层应用以及分布式数据库的应用

unit saleratio;

interface

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

type
  Tfrm_saleratio = class(TForm)
    PageControl1: TPageControl;
    TabSheet1: TTabSheet;
    Panel1: TPanel;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label5: TLabel;
    Label7: TLabel;
    Label8: TLabel;
    Label9: TLabel;
    DBEdit3: TDBEdit;
    DBComboBox3: TDBComboBox;
    DBEdit4: TDBEdit;
    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;
    Panel3: TPanel;
    btn_brs: TButton;
    btn_qry: TButton;
    btn_clr: TButton;
    btn_prt: TButton;
    GroupBox2: TGroupBox;
    DBGrid1: TDBGrid;
    qsaleratio: TQuery;
    dssaleratio: TDataSource;
    quse: TQuery;
    qsaleratioBDEDesigner: TAutoIncField;
    qsaleratioBDEDesigner2: TStringField;
    qsaleratioBDEDesigner3: TFloatField;
    qsaleratioBDEDesigner4: TStringField;
    qsaleratioBDEDesigner5: TStringField;
    qsaleratioBDEDesigner6: TStringField;
    qsaleratioBDEDesigner7: TStringField;
    qsaleratioBDEDesigner8: TStringField;
    qsaleratioBDEDesigner9: TDateTimeField;
    qsaleratioBDEDesigner10: TStringField;
    qsaleratioBDEDesigner11: TStringField;
    qsaleratioBDEDesigner12: TStringField;
    Upsaleratio: TUpdateSQL;
    GroupBox3: TGroupBox;
    cbbsc: TComboBox;
    GroupBox4: TGroupBox;
    cbname: TComboBox;
    GroupBox5: TGroupBox;
    Label4: TLabel;
    Label13: TLabel;
    cbyear: TComboBox;
    cbmonth: TComboBox;
    GroupBox1: TGroupBox;
    Label10: TLabel;
    Label11: TLabel;
    Label12: TLabel;
    Label6: TLabel;
    DBEdit7: TDBEdit;
    DBEdit8: TDBEdit;
    DBEdit9: TDBEdit;
    DBEdit10: TDBEdit;
    DBComboBox1: TDBComboBox;
    DBComboBox2: TDBComboBox;
    DBComboBox5: TDBComboBox;
    DBComboBox4: TDBComboBox;
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure FormCreate(Sender: TObject);
    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 DBComboBox4Exit(Sender: TObject);
    procedure TabSheet2Enter(Sender: TObject);
    procedure btn_clrClick(Sender: TObject);
    procedure btn_brsClick(Sender: TObject);
    procedure btn_qryClick(Sender: TObject);
    procedure btn_prtClick(Sender: TObject);
    procedure DBComboBox1Exit(Sender: TObject);
    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_saleratio: Tfrm_saleratio;

implementation

uses  data, rp_saleratio;



{$R *.dfm}
//***************释放空间********************
procedure Tfrm_saleratio.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_saleratio.LockEdit;
begin
       DBEdit3.ReadOnly :=true;
       DBEdit4.ReadOnly :=true;
       DBEdit7.ReadOnly :=true;
       DBEdit8.ReadOnly :=true;
       DBEdit9.ReadOnly :=true;
       DBEdit10.ReadOnly :=true;
       DBComboBox1.ReadOnly :=true;
       DBComboBox3.ReadOnly :=true;
       DBComboBox4.ReadOnly :=true;
       DBComboBox5.ReadOnly :=true;
       DBComboBox2.ReadOnly :=true;
       DBComboBox1.Enabled  :=false;
       DBComboBox3.Enabled  :=false;
       DBComboBox4.Enabled  :=false;
       DBComboBox5.Enabled  :=false;
       DBComboBox2.Enabled  :=false;
end;

procedure Tfrm_saleratio.UnlockEdit ;
begin
       DBEdit3.ReadOnly :=true;
       DBEdit4.ReadOnly :=false;
       DBEdit7.ReadOnly :=false;
       DBEdit8.ReadOnly :=false;
       DBEdit9.ReadOnly :=false;
       DBEdit10.ReadOnly :=true;
       DBComboBox1.ReadOnly :=false;
       DBComboBox5.ReadOnly :=false;
       DBComboBox3.ReadOnly :=false;
       DBComboBox4.ReadOnly :=false;
       DBComboBox2.ReadOnly :=false;
       DBComboBox1.Enabled  :=true;
       DBComboBox3.Enabled  :=true;
       DBComboBox4.Enabled  :=true;
       DBComboBox5.Enabled  :=true;
       DBComboBox2.Enabled  :=true;


end;


procedure Tfrm_saleratio.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_saleratio.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_saleratio.btn_firstClick(Sender: TObject);
begin
        if not qsaleratio.Bof then qsaleratio.First ;

end;

procedure Tfrm_saleratio.btn_lastClick(Sender: TObject);
begin
        if not qsaleratio.eof then qsaleratio.Last;

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


end;

procedure Tfrm_saleratio.btn_nextClick(Sender: TObject);
begin
        if not qsaleratio.Eof then   qsaleratio.Next ;
end;
procedure Tfrm_saleratio.btn_addnewClick(Sender: TObject);
var
  Present: TDateTime;
begin
        UnlockEdit;
        qsaleratio.append;

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

//人名：
  with quse do begin
    if active then close;
    unprepare;
    sql.Clear;
    sql.Add('select * from pub_z_saleratio');
    prepare;
    open;
    last;
    qsaleratio.fieldbyname('主管').AsString:=fieldbyname('主管').AsString;
    qsaleratio.fieldbyname('审核').AsString:=fieldbyname('审核').AsString;
    qsaleratio.fieldbyname('录入').AsString:=fieldbyname('录入').AsString;
    qsaleratio.fieldbyname('年').AsString:=fieldbyname('年').AsString;

  end;
end;

procedure Tfrm_saleratio.btn_saveClick(Sender: TObject);
begin
      with data.zxjxdata do begin
      if not DatabaseJxw.intransaction then DatabaseJxw.starttransaction;
      try
      qsaleratio.ApplyUpdates;
      DatabaseJxw.commit;
 //     qsaleratio.Prior ;
 qsaleratio.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;
{    qsaleratio.Close ;
    qsaleratio.Open ;
 }
end;



procedure Tfrm_saleratio.btn_editClick(Sender: TObject);
begin
        qsaleratio.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_saleratio.btn_cancelClick(Sender: TObject);
begin
        qsaleratio.Cancel ;

        lockedit;

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

end;


procedure Tfrm_saleratio.btn_deleteClick(Sender: TObject);
begin
     qsaleratio.Delete ;
     qsaleratio.ApplyUpdates ;
     lockedit;

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

end;
//***************以上是按纽操作。*********************
//***************打开数据集********************
procedure TFrm_saleratio.FormCreate(Sender: TObject);
begin
    lockedit;
    enablebtn;

  //通过quse读出办事处名称列表
  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;
    if findfirst then begin
    while not eof do begin
      DBComboBox1.Items.Add(fieldbyname('办事处名称').AsString);
      next;
    end;
    end;
  end;
  
    with qsaleratio do begin
    open;
    first;
    end;

end;


procedure Tfrm_saleratio.DBComboBox4Exit(Sender: TObject);
begin
        //通过姓名 给出，工号，岗位。
    with quse do begin
      if active then close;
      sql.Clear;
      sql.Add('select * from pub_z_stuff where 姓名=:xm and 办事处名称=:bscmc');
      parambyname('xm').AsString:=qsaleratio.fieldbyname('姓名').AsString ;
      parambyname('bscmc').AsString:=qsaleratio.fieldbyname('办事处名称').AsString ;
      open;
      qsaleratio.FieldByName('工号').AsString:=FieldByName('工号').AsString;
      qsaleratio.FieldByName('岗位').AsString:=FieldByName('岗位').AsString;
      first;
      DBComboBox5.Items.Clear ;
      while not eof do begin
      DBComboBox5.Items.Add(FieldByName('工号').AsString);
      next;
      end;
   end;
end;

procedure Tfrm_saleratio.TabSheet2Enter(Sender: TObject);
begin
    //给出查询页的下拉列表。
  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 qsaleratio do begin
      if active then close;
      if not active then open;
      cbname.Items.Clear ;
      while not Eof do begin
      cbname.Items.Add(FieldByName('姓名').AsString);
      Next;
      end;
    end;

end;

procedure Tfrm_saleratio.btn_clrClick(Sender: TObject);
begin
      cbname.Text :='';
      cbbsc.Text :='';
      cbyear.Text :='';
      cbmonth.Text :='';

end;

procedure Tfrm_saleratio.btn_brsClick(Sender: TObject);
begin
    DBGrid1.DataSource :=dssaleratio;
    qsaleratio.filtered:=false;
end;

procedure Tfrm_saleratio.btn_qryClick(Sender: TObject);
var
  qitem,q1,q2,q3,q4:string;
begin

  q1 :=cbbsc.Text;
  q2 :=cbname.Text;
  q3 :=cbyear.Text;
  q4 :=cbmonth.Text;

  if (q1='') and (q2='') and (q3='') and (q4='')
  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(cbname.Text='') then
      begin
      q2:=cbname.Text;
      q2:=' 姓名='''+q2+''' ';
      end
    else
      q2:='';
    if not(cbyear.Text='') then
      begin
      q3:=cbyear.Text;
      q3:=' 年='''+q3+''' ';
      end
    else
      q3:='';
    if not(cbmonth.Text='') then
      begin
      q4:=cbmonth.Text;
      q4:=' 月='''+q4+''' ';
      end
    else
      q4:='';

     //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 ;

     if qitem='' then
         if q3<>'' then qitem:=q3;
     if qitem<>'' then
         if q3<>'' then qitem:=qitem+' and '+q3;

     if qitem='' then
         if q4<>'' then qitem:=q4;
     if qitem<>'' then
         if q4<>'' then qitem:=qitem+' and '+q4;
   //根据条件过滤
    with qsaleratio do begin

      filter:=qitem;
      filtered:=true;

      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_saleratio.btn_prtClick(Sender: TObject);
begin
     frp_saleratio:=Tfrp_saleratio.Create(application);
     frp_saleratio.QuickRep1.Preview;
     frp_saleratio.free;
end;

procedure Tfrm_saleratio.DBComboBox1Exit(Sender: TObject);
begin
        //通过办事处 给出姓名列表。
    with quse do begin
      if active then close;
      sql.Clear;
      sql.Add('select * from pub_z_stuff where 办事处名称=:bscname');
      parambyname('bscname').AsString:=qsaleratio.fieldbyname('办事处名称').AsString ;
      open;
      DBComboBox4.Items.Clear ;
      while not eof do begin
      DBComboBox4.Items.Add(FieldByName('姓名').AsString);
      next;
      end;
   end;
end;

procedure Tfrm_saleratio.FormDestroy(Sender: TObject);
begin
      frm_saleratio:=nil;
end;

end.