frm_houseu.~pas

学生公寓管理系统 很好的设计 呵呵 绝对很好

unit frm_houseU;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, frm_infoU, DB, StdCtrls, Grids, DBGrids, ComCtrls,Control_houseU,
  ClassesU;

type
  Tfrm_house = class(Tfrm_info)
    edt_houseNo: TEdit;
    Label1: TLabel;
    Label2: TLabel;
    edt_floorNum: TEdit;
    Label3: TLabel;
    edt_roomNum: TEdit;
    Label4: TLabel;
    DTP_begin: TDateTimePicker;
    Label5: TLabel;
    Memo_remark: TMemo;
    procedure FormShow(Sender: TObject);
    procedure btn_delClick(Sender: TObject);
    procedure edt_floorNumKeyPress(Sender: TObject; var Key: Char);
    procedure edt_roomNumKeyPress(Sender: TObject; var Key: Char);
    procedure btn_addClick(Sender: TObject);
    procedure btn_editClick(Sender: TObject);
    procedure DBGrid_infoCellClick(Column: TColumn);
  private
    { Private declarations }
  public
    //填充数据
    procedure FillData;
  end;

var
  frm_house: Tfrm_house;

implementation

{$R *.dfm}
procedure Tfrm_house.FillData;
begin
  DataSource_info.DataSet:=Control_houseU.GetHouseArray;
  self.DBGrid_info.Columns[0].Visible  :=false;

end;
procedure Tfrm_house.FormShow(Sender: TObject);
begin
  inherited;
  FillData;
end;

procedure Tfrm_house.btn_delClick(Sender: TObject);
var
  House:THouse;
begin
  if(self.btn_del.Caption='删除') then
    begin
      if MessageBox(Handle, '您确定要删除该公寓信息', '信息',
         MB_ICONQUESTION or MB_OKCANCEL) = IDOK then
        begin
          Control_houseU.DelHouse(self.edt_houseNo.Tag);
          FillData;
          if self.DBGrid_info.Fields[0].IsNull then
            exit;
          self.edt_houseNo.Tag:=self.DBGrid_info.Fields[0].Value;//保存id
          self.edt_houseNo.Text :=self.DBGrid_info.Fields[1].Value;
          self.edt_floorNum.Text:=inttostr(self.DBGrid_info.Fields[2].Value);
          self.edt_roomNum.Text:=inttostr(self.DBGrid_info.Fields[3].Value);
          self.DTP_begin.Date:=self.DBGrid_info.Fields[4].Value;
          self.Memo_remark.Text:=self.DBGrid_info.Fields[5].Value;
        end;
    end;
  if(self.btn_del.Caption='保存') then
    begin
      if((edt_houseNo.Text='') or (edt_floorNum.Text='')
        or (edt_roomNum.Text='')) then
        begin
           MessageBox(Handle, '内容填写不正确！', '信息', MB_ICONEXCLAMATION);
           exit;
        end;
      //查找是否存在重复
      House:=THouse.Create;
      House:=GetHouseByHouseNo(trim(edt_houseNo.Text));
      if(House<>nil) then
        begin
          if(House.id<>edt_houseNo.Tag) then
            begin
              MessageBox(Handle, '公寓号已经存在,请重新设置！', '信息', MB_ICONEXCLAMATION);
              exit;
            end;
        end;
      House:=THouse.Create;
      House.id:=edt_houseNo.Tag;
      House.HouseID:=trim(edt_houseNo.Text);
      House.floorNum:=strtoint(trim(edt_floorNum.Text));
      House.roomNum:=strtoint(trim(edt_roomNum.Text));
      House.beginDate:=DateToStr(self.DTP_begin.Date);
      House.remark:=self.Memo_remark.Text;
      if(Control_houseU.EditHouse(House)) then
        begin
          MessageBox(Handle, '修改成功！', '信息', MB_ICONASTERISK);
          //刷新内容
          FillData;
        end
      else
         begin
          MessageBox(Handle, '修改失败！', '信息', MB_ICONEXCLAMATION);
          exit;
        end;
    end;
  if(self.btn_del.Caption='确定') then
    begin
      if((edt_houseNo.Text='') or (edt_floorNum.Text='')
        or (edt_roomNum.Text='')) then
        begin
           MessageBox(Handle, '内容填写不正确！', '信息', MB_ICONEXCLAMATION);
           exit;
        end;
       //查找是否存在重复
      if (GetHouseByHouseNo(trim(edt_houseNo.Text)))<>nil then
        begin
          MessageBox(Handle, '公寓号已经存在,请重新设置！', '信息', MB_ICONEXCLAMATION);
          exit;
        end;
        
      House:=THouse.Create;
      House.HouseID:=trim(edt_houseNo.Text);
      House.floorNum:=strtoint(trim(edt_floorNum.Text));
      House.roomNum:=strtoint(trim(edt_roomNum.Text));
      House.beginDate:=DateToStr(self.DTP_begin.Date);
      House.remark:=self.Memo_remark.Text;
      if(Control_houseU.AddHouse(House)) then
        begin
          MessageBox(Handle, '添加成功！', '信息', MB_ICONASTERISK);
          self.edt_houseNo.Text :='';
          self.edt_floorNum.Text :='';
          self.edt_roomNum.Text :='';
          self.Memo_remark.Text :='';
          //刷新内容
          FillData;
        end
      else
        begin
          MessageBox(Handle, '添加失败！', '信息', MB_ICONEXCLAMATION);
          exit;
        end;
    end;
  inherited;

end;

procedure Tfrm_house.edt_floorNumKeyPress(Sender: TObject; var Key: Char);
begin
  inherited;
  if not((key in ['0'..'9',#8,#13])) then
    key:=#0;
end;

procedure Tfrm_house.edt_roomNumKeyPress(Sender: TObject; var Key: Char);
begin
  inherited;
if not((key in ['0'..'9',#8,#13])) then
    key:=#0;
end;

procedure Tfrm_house.btn_addClick(Sender: TObject);
begin
  inherited;
  self.edt_houseNo.Tag:=0;
  self.edt_houseNo.Text :='';
  self.edt_floorNum.Text :='';
  self.DTP_begin.Date:=strtodate('1980-1-1');
  self.edt_roomNum.Text :='';
  self.Memo_remark.Text :='';
  self.edt_houseNo.SetFocus;

end;

procedure Tfrm_house.btn_editClick(Sender: TObject);
begin
  if self.btn_edit.Caption='修改' then
    begin
      if edt_houseNo.Text ='' then
        begin
           MessageBox(Handle, '没有可以修改的数据！', '信息', MB_ICONEXCLAMATION);
          exit;
        end
      else
        begin
          self.edt_houseNo.SetFocus;
        end;
    end;
  inherited;

end;

procedure Tfrm_house.DBGrid_infoCellClick(Column: TColumn);
begin
  if self.DBGrid_info.Fields[0].IsNull then
    exit;
  self.edt_houseNo.Tag:=self.DBGrid_info.Fields[0].Value;//保存id
  self.edt_houseNo.Text :=self.DBGrid_info.Fields[1].Value;
  self.edt_floorNum.Text:=inttostr(self.DBGrid_info.Fields[2].Value);
  self.edt_roomNum.Text:=inttostr(self.DBGrid_info.Fields[3].Value);
  self.DTP_begin.Date:=self.DBGrid_info.Fields[4].Value;
  self.Memo_remark.Text:=self.DBGrid_info.Fields[5].Value;
  inherited;

end;

end.