当用户在TDateTimePicker中选择一个值时,我想将要设置的值覆盖到与所选值对应的一周的开始。
我尝试在OnChange事件中设置它,但是在事件结束后立即设置了最初选择的值。
我将如何处理?
最佳答案
使用“ ONCloseUp”事件-该示例适用于我(Delphi 7,WinXP)
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ComCtrls, DateUtils, StdCtrls;
type
TForm1 = class(TForm)
dtp1: TDateTimePicker;
btn1: TButton;
edt1: TEdit;
procedure btn1Click(Sender: TObject);
procedure dtp1CloseUp(Sender: TObject);
private
{ Private declarations }
procedure SetDayToMonday();
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.SetDayToMonday;
begin
dtp1.DateTime := dtp1.DateTime - DayOfTheWeek(dtp1.DateTime) + 1;
end;
procedure TForm1.dtp1CloseUp(Sender: TObject);
begin
SetDayToMonday;
end;
end.
--reinhard :-)
关于delphi - 用户选择日期时,更正datetimepicker上的值,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/2238221/