ygdmwh.pas

日昌餐饮管理系统是用Delphi7+SQL写的管理系统

unit ygdmwh;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Grids, DBGrids, DB, ADODB, StdCtrls, Buttons, ExtCtrls, Mask,
  DBCtrls, Excel2000, OleServer, DBTables;

type
  TygwhForm = class(TForm)
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    Panel2: TPanel;
    BitBtn5: TBitBtn;
    BitBtn6: TBitBtn;
    Panel4: TPanel;
    BitBtn4: TBitBtn;
    Panel1: TPanel;
    BitBtn1: TBitBtn;
    BitBtn2: TBitBtn;
    BitBtn3: TBitBtn;
    BitBtn7: TBitBtn;
    BitBtn8: TBitBtn;
    ExcelApplication1: TExcelApplication;
    ExcelWorksheet1: TExcelWorksheet;
    ExcelWorkbook1: TExcelWorkbook;
    Panel3: TPanel;
    Label1: TLabel;
    Label3: TLabel;
    DBEdit1: TDBEdit;
    DBEdit3: TDBEdit;
    Query1: TQuery;
    UpdateSQL1: TUpdateSQL;
    Query2: TQuery;
    Label2: TLabel;
    DBComboBox1: TDBComboBox;
    Label4: TLabel;
    DBEdit2: TDBEdit;
    Label5: TLabel;
    DBEdit4: TDBEdit;
    Label6: TLabel;
    Label7: TLabel;
    DBEdit6: TDBEdit;
    DBComboBox2: TDBComboBox;
    Label8: TLabel;
    procedure FormActivate(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure Formbtn;
    procedure BitBtn4Click(Sender: TObject);
    procedure BitBtn5Click(Sender: TObject);
    procedure BitBtn6Click(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
    procedure BitBtn1Click(Sender: TObject);
    procedure BitBtn3Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure FormKeyPress(Sender: TObject; var Key: Char);
    procedure BitBtn8Click(Sender: TObject);
    procedure DBEdit1Exit(Sender: TObject);
    procedure DBEdit4Exit(Sender: TObject);
  private
    btn:string;
    { Private declarations }
  public
    { Public declarations }
  end;

var
  ygwhForm: TygwhForm;
  func:string;
implementation
{$R *.dfm}

procedure TygwhForm.FormActivate(Sender: TObject);
begin
     if btn<>'' then exit;
     panel1.Enabled:=true;
     panel2.Enabled:=false;
     panel3.Enabled:=false;
     dbgrid1.Enabled:=true;
     query1.Open;
end;

procedure TygwhForm.FormClose(Sender: TObject; var Action: TCloseAction);
begin
     btn:='';
     func:='';
     query1.Close;
end;

procedure TygwhForm.BitBtn4Click(Sender: TObject);
begin
     close;
end;
procedure TygwhForm.formBtn;
begin
     dbgrid1.Enabled:=not dbgrid1.Enabled;
     panel1.Enabled:=not panel1.Enabled;
     panel2.Enabled:=not panel2.Enabled;
     panel3.Enabled:=not panel3.Enabled;
     if panel1.Enabled then bitbtn1.SetFocus else bitbtn5.SetFocus;
end;

procedure TygwhForm.BitBtn5Click(Sender: TObject);
begin
     if (btn='add') or (btn='mod') then
     begin
       if query1.FieldByName('ygbh').AsString='' then
       begin
         messagedlg('编码不能为空！！',mtwarning,[mbok],0);
         dbedit1.SetFocus;
         exit;
       end;
       if query1.FieldByName('ygxm').AsString='' then
       begin
         messagedlg('姓名不能为空！！',mtwarning,[mbok],0);
         exit;
       end;
       query1.Post;
       query1.ApplyUpdates;
     end;
     if btn='del' then begin
       query1.Delete;
       query1.ApplyUpdates;
     end;
     formBtn;
end;

procedure TygwhForm.BitBtn6Click(Sender: TObject);
begin
     if (btn='add') or (btn='mod') then query1.Cancel;
     formBtn;
end;

procedure TygwhForm.BitBtn2Click(Sender: TObject);
begin
     formBtn;
     btn:='mod';
     query1.Edit;
     dbedit1.SetFocus;
end;

procedure TygwhForm.BitBtn1Click(Sender: TObject);
begin
     formBtn;
     btn:='add';
     query1.Append;
     dbedit1.SetFocus;
end;

procedure TygwhForm.BitBtn3Click(Sender: TObject);
begin
     formBtn;
     btn:='del';
end;

procedure TygwhForm.FormCreate(Sender: TObject);
begin
     func:='';
     btn:='';
end;

procedure TygwhForm.FormKeyPress(Sender: TObject; var Key: Char);
begin
    if key=chr(13) then perform($28,0,0);
end;

procedure TygwhForm.BitBtn8Click(Sender: TObject);
var
 i,row,column:integer;
begin
 Try
  ExcelApplication1.Connect;
 Except
  MessageDlg('Excel 没有安装,无法报表！！',
  mtError, [mbOk], 0);
  Abort;
 End;
 ExcelApplication1.Visible[0]:=True;
 ExcelApplication1.Caption:='Excel 报表';
 ExcelApplication1.Workbooks.Add(Null,0);
 ExcelWorkbook1.ConnectTo(ExcelApplication1.Workbooks[1]);
 ExcelWorksheet1.ConnectTo(ExcelWorkbook1.Worksheets[1] as _Worksheet);
 column:=1;
 for i:=1 to query1.FieldCount do
   begin
    ExcelWorksheet1.Cells.Item[1,column]:=query1.fields[i-1].FieldName;
    column:=column+1;
   end;
 row:=2;
 query1.First;
 While Not(query1.Eof) do
 begin
   column:=1;
   for i:=1 to query1.FieldCount do
   begin
    ExcelWorksheet1.Cells.Item[row,column]:=query1.fields[i-1].AsString;
    column:=column+1;
   end;
   query1.Next;
   row:=row+1;
 end;
 ExcelApplication1.Visible[0]:=true;
 ExcelApplication1.ActiveWorkbook.Save(0);
 ExcelApplication1.Save('员工编码表.xls');
 ExcelApplication1.Workbooks.Close(1);
 ExcelApplication1.Visible[0]:=false;
 ExcelApplication1.Quit;
end;

procedure TygwhForm.DBEdit1Exit(Sender: TObject);
begin
   if (btn='add') or ((btn='mod') and (query1.FieldByName('ygbh').Value<>query1.FieldByName('ygbh').OldValue)) then
   begin
     query2.Close;
     query2.ParamByName('cs').AsString:=dbedit1.Text;
     query2.Open;
     if query2.RecordCount>0 then begin
       showmessage('该编号已经存在，请另选');
       dbedit1.SetFocus;
     end;
     query2.Close;
   end;
end;

procedure TygwhForm.DBEdit4Exit(Sender: TObject);
begin
     if (strtofloat(dbedit4.Text)>1) or (strtofloat(dbedit4.Text)<0) then
     begin
       messagedlg('取值范围必须在0~1之间！'+#13+'1__为不打折！'+#13+'0__为可免单！',mtwarning,[mbok],0);
       dbedit4.SetFocus;
     end;
end;

end.