unit1.pas

Delphi函数参考大全的CD

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Grids, DBGrids, DB, ADODB, Math;

type
  TForm1 = class(TForm)
    Button1: TButton;
    ADOConnection1: TADOConnection;
    ADOQuery1: TADOQuery;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    Employee: TEdit;
    Wage: TEdit;
    Label1: TLabel;
    Label2: TLabel;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
  With ADOQuery1 do
  begin
    Close;
    SQL.Clear;
    SQL.Add('select * from tb_wage where employee = :name');
    Parameters.ParamByName('name').Value := Trim(Employee.Text);
    Open;
  end;
  if ADOQuery1.RecordCount>0 then
  begin
    Wage.Text := FloatToStr(Ceil(ADOQuery1.FieldByName('wage').Value));
  end;
end;

end.