unit mzlx;

interface

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

type
  Tmzlxfrm = class(TForm)
    CoolBar1: TCoolBar;
    ToolBar1: TToolBar;
    SpeedButton1: TSpeedButton;
    SpeedButton2: TSpeedButton;
    SpeedButton3: TSpeedButton;
    SpeedButton4: TSpeedButton;
    SpeedButton5: TSpeedButton;
    Panel1: TPanel;
    GroupBox1: TGroupBox;
    DBGrid1: TDBGrid;
    DataSource1: TDataSource;
    Label1: TLabel;
    Edit1: TEdit;
    procedure FormShow(Sender: TObject);
    procedure DBGrid1CellClick(Column: TColumn);
    procedure SpeedButton1Click(Sender: TObject);
    procedure SpeedButton2Click(Sender: TObject);
    procedure SpeedButton3Click(Sender: TObject);
    procedure SpeedButton4Click(Sender: TObject);
    procedure SpeedButton5Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
    m:integer;
  end;
  const
  m=0;
var
  mzlxfrm: Tmzlxfrm;

implementation

{$R *.dfm}

uses dbdata;

procedure Tmzlxfrm.FormShow(Sender: TObject);
begin
   with data.ADOQYmzlx do
      begin
         close;
         sql.Clear;
         sql.Add('select * from 民族表');
         open
      end;
      data.ADOQYmzlx.Active:=true;
if data.ADOQYmzlx.FieldByName('民族').Value=null then
   application.MessageBox('數據庫中沒有數據，請添加數據！','提示',64)
end;

procedure Tmzlxfrm.DBGrid1CellClick(Column: TColumn);
begin
  If DBGrid1.DataSource.DataSet<> Nil then
    if DBGrid1.DataSource.DataSet.RecordCount>0 then
    edit1.Text:=data.ADOQYmzlx.FieldByName('民族').Value

end;

procedure Tmzlxfrm.SpeedButton1Click(Sender: TObject);
begin
if trim(edit1.Text)<>'' then
begin
with data.ADOpublic do
begin
   close;
   sql.Clear;
   sql.Add('select * from 民族表 where 民族=:a');
   parameters.ParamByName('a').Value:=trim(edit1.Text);
   open;
end;
if data.ADOpublic.RecordCount>0 then
begin
   application.MessageBox('信息不能重復','提示',64);
   edit1.Clear;
   edit1.SetFocus;
end
else
begin
with data.ADOQYmzlx do
begin
   edit;
   fieldbyname('民族').Value:=trim(edit1.Text);
   post
end;
application.MessageBox('修改成功','提示',64);
edit1.Clear;
end;
end;
end;

procedure Tmzlxfrm.SpeedButton2Click(Sender: TObject);
begin
if trim(edit1.Text)<>'' then
try
with data.ADOQYmzlx do
   begin
      close;
      sql.Clear;
      sql.Add('insert 民族表 values (:a)');
      parameters.ParamByName('a').Value:=trim(edit1.Text);
      execsql;
   end;
   edit1.Clear;
   self.OnShow(sender);
   application.MessageBox('添加成功','提示',64);
except
   application.MessageBox('系統出錯！','提示',64);
end
else
   application.MessageBox('請輸入民族','提示',64);
end;

procedure Tmzlxfrm.SpeedButton3Click(Sender: TObject);
begin
with data.ADOQYygxx do
   begin
      close;
      sql.Clear;
      sql.Add('select 民族 from 人事表 where 民族 = :a');
      parameters.ParamByName('a').Value:=trim(edit1.Text);
      open;
   end;
if data.ADOQYygxx.RecordCount>0 then
   application.MessageBox('此信息已經使用，不能刪除！','警告',64)
else
if messagebox(self.Handle,'真的要刪除嗎？','提示',mb_yesno+mb_iconquestion)=idyes then
begin
data.ADOQYmzlx.Delete;
edit1.Clear;
end;
end;

procedure Tmzlxfrm.SpeedButton4Click(Sender: TObject);
begin
edit1.Clear;
end;

procedure Tmzlxfrm.SpeedButton5Click(Sender: TObject);
begin
close;
end;

end.