[solved] Tcalendar

[zoimutante]

I cant make tcalendar to show current time and date.
Any help ?

[Thaddy]

Code: Pascal  [Select][+][-]

1. Calender1.DateTime := Now;
2.  

But the calender sets the correct time itself from the system clock and the locale settings, so that should not be necessary.
To show the time you need an extra bit of work.

[ASerge]

But the calender sets the correct time itself from the system clock and the locale settings, so that should not be necessary.

The first is true but the second not, because the DateTime property is replaced with the value saved at design time. So, the code above needed at FormCreate.

I cant make tcalendar to show current time and date.

The calendar is used for date selection only. If need both, use TDateTimePicker with .Kind = dtkDateTime.

[zoimutante]

I make a mistake, i don't need tcalendar to show time, only date it self.
Any other question: Tcalendar wiht the code abve will update the date even when date it changes on system with out restart app ?or i need a loop to constant update it ?
thanks both

[Thaddy]

No.Update it periodically with a TTimer or the OnIdle event of TApplication.

[zoimutante]

how to edit the title to mark as solved?

[zoimutante]

No.Update it periodically with a TTimer or the OnIdle event of TApplication.

where is OnIdle event of TApplication. ?

[Thaddy]

http://lazarus-ccr.sourceforge.net/docs/lcl/forms/tapplication.onidle.html

It helps if you start reading the excellent documentation before asking a question here.

[zoimutante]

http://lazarus-ccr.sourceforge.net/docs/lcl/forms/tapplication.onidle.html

It helps if you start reading the excellent documentation before asking a question here.

Sir, I can bet my life that I read documentation. The problem is, I'm new to this thing named lazarus, I fail in basics concepts, If I needed a simple date, I would simple use pascal and show date on the text of an edit or even a button. but i dont know how to this with tcalendar... even after reading the documantation

[zoimutante]

Solution with fellows help.

On the on change proprety, use this code

procedure TForm1.Calendar1Change(Sender: TObject);
begin
  Calendar1.DateTime:=now;         

On OnCreate event  did the same, now calendar is stick with current system data

thank you all