depoteditunit.pas

一个用delphi 开发的商场销售系统 涵盖很多功能

unit DepotEditUnit;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, DB, DBTables, StdCtrls, ExtCtrls, ComCtrls, ToolWin;


type
  TDepotEditForm = class(TForm)
    PanelBkGnd: TPanel;
    Panel_button: TPanel;
    Bevel_button: TBevel;
    OKBtn: TButton;
    CancelBtn: TButton;
    FlatPanel_edit: TPanel;
    LB_Name: TLabel;
    LB_ID: TLabel;
    LB_Type: TLabel;
    LB_Memo: TLabel;
    E_ID: TEdit;
    E_memo: TEdit;
    Query_data: TQuery;
    E_Name: TEdit;
    C_Type: TComboBox;
    procedure FormCreate(Sender: TObject);
    procedure OKBtnClick(Sender: TObject);
    procedure E_NameKeyDown(Sender: TObject; var Key: Word;
      Shift: TShiftState);
    procedure E_IDExit(Sender: TObject);
    procedure CancelBtnClick(Sender: TObject);
  private
    { Private declarations }
  public
    P_state: integer;
    { Public declarations }
  end;

var
  DepotEditForm: TDepotEditForm;

implementation
uses FunctionUnit, OperInfoUnit;

{$R *.dfm}

procedure TDepotEditForm.FormCreate(Sender: TObject);
begin
  query_data.DatabaseName := 'CPXSGL';
  P_state := 1; //0-增加  1-修改
//   LB_type.ItemIndex :=0;
end;

procedure TDepotEditForm.OKBtnClick(Sender: TObject);
begin
  if trim(E_name.Text) = '' then
  begin
    messagedlg(Errormsg0002 + '0002', mtError, [mbok], 0);
    E_name.SetFocus;
    exit;
  end;
  if trim(E_ID.Text) = '' then
  begin
    messagedlg(Errormsg0002 + '0003', mtError, [mbok], 0);
    E_id.SetFocus;
    exit;
  end;
  if P_state = 0 then //增加数据
  begin
    with query_data do
    begin
      close;
      sql.Clear;
      sql.Text := 'select * from depot where id="' + uppercase(E_id.Text) + '"';
      try
        open;
      except
        messagedlg(Errormsg0001 + '0010', mtError, [mbok], 0);
        close;
        self.Close;
      end;
      if RecordCount > 0 then //编号已存在
      begin
        messagedlg(Errormsg0003 + '0004', mtError, [mbok], 0);
        E_id.SetFocus;
        close;
        exit;
      end
      else //编号不存在则增加
      begin
        close;
        sql.Clear;
        sql.Text := 'insert into depot (name,id,type,memo)' +
          'values ("' + E_name.Text + '","' + uppercase(E_id.Text)
          + '","' + C_type.Text + '","' + E_memo.Text + '")';
        try
          execsql;
        except
          messagedlg(Errormsg0004 + '0011', mtError, [mbok], 0);
          close;
          self.Close;
        end;
      end;
      messagedlg(Infmsg0001, mtInformation, [mbok], 0);
      close;
      self.Close;
    end;
  end
  else if P_state = 1 then //修改数据
  begin
    with query_data do
    begin
      close;
      sql.Clear;
      sql.Text := 'update depot set name="' + E_name.Text + '",type="' + C_type.Text
        + '",memo="' + E_memo.Text + '" where id="' + E_id.text + '"';
      try
        execsql;
      except
        messagedlg(Errormsg0004 + '0011', mtError, [mbok], 0);
        close;
        self.Close;
      end;
      messagedlg(Infmsg0003, mtInformation, [mbok], 0);
      close;
      self.Close;
    end;
  end;

end;

procedure TDepotEditForm.E_NameKeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
  if (key = 13) or (key = 40) then { 判断是按执行键}
  begin
    key := 0;
    perform(WM_NEXTDLGCTL, 0, 0); {移动到下一个控件}
  end;
end;

procedure TDepotEditForm.E_IDExit(Sender: TObject);
begin
  if trim(E_id.Text) = '' then
    E_id.Text := Nowindex;

end;

procedure TDepotEditForm.CancelBtnClick(Sender: TObject);
begin
  self.Close;
end;

end.