untdaterangeselect.pas

简要说明:对医院幼儿心理情况做的一个调查,统计系统.

unit untDateRangeSelect;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, untBaseDialog, StdCtrls, Buttons, ExtCtrls, ComCtrls, LbButton,
  jpeg;

type
  TfrmDateRangeSelect = class(TfrmBaseDialog)
    Label1: TLabel;
    dtpStart: TDateTimePicker;
    dtpEnd: TDateTimePicker;
    Label2: TLabel;
    procedure btnOKClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmDateRangeSelect: TfrmDateRangeSelect;

implementation

uses untGlobalFun;

{$R *.dfm}

procedure TfrmDateRangeSelect.btnOKClick(Sender: TObject);
begin
  inherited;
  if dtpStart.Date > dtpEnd.Date then
  begin
    MsgOK('截止日期不能在起始日期之前！');
    dtpEnd.SetFocus;
    Exit;
  end;
  ModalResult := mrOk;
end;

end.