Can anybody clarify the following for a Calendar:

- How to set earliest / latest date (if possible)
- How to navigate with mouse / touch (and no keyboard)

The latter is bugging me in particular since I can't seem to go back beyond 1st  Jan 2000 using mouse or touch.

Thanks in advance

Mark

Hi Mark,

> - How to set earliest / latest date (if possible)

The only way I know is to use the OnChange event:

   if TCalendar(Sender).Text > DateToStr(date) then
      TCalendar(Sender).Text := DateToStr(date);

> - How to navigate with mouse / touch (and no keyboard)
> The latter is bugging me in particular since I can't seem to go back beyond 1st  Jan 2000 using mouse or touch.

Not sure what you mean - that works without problems here clicking on
the arrow buttons. (Screenshot attached).

Uli

Hi Uli

Thanks for this. I get the OnChange bit and will implement.

Regarding the mouse navigation, I can only get as far as Jan 1st 2000 when I click the back button. The view changes from month to year to something else then won't go any further. Screen shot attached.

Cheers
Mark

Mark,

> Regarding the mouse navigation, I can only get as far as Jan 1st 2000 when I click the back button. The view changes from month to year to something else then won't go any further. Screen shot attached.

TCalendarView = (cvMonth,cvYear,cvDecade,cvCentury);

Yes, it seems to change to cvDecade and cvCentury. No idea why though. I
can't replicate that here.
Are you using a customized control? Are you seeing the same issue in a
fresh project with everything set to default?

Uli

Uli

When a drop a TCalendar on a form, at design time, and run the app, I get what I think is the desired behaviour. Specifically I can use the arrows to move back and forward in the current view and click the "middle section" to change the view that I'm navigating in (month, year etc). This is great because it makes it simple to enter dates of birth, for example, which may be some time ago - you can get to them really quickly.

However, when I create a TCalendar inside a custom component then the behaviour is different. Clicking on the "middle section " OR the arrows changes the view and doesn't let me go back beyond 1/1/2000. What am I doing!

Mark

Mark,

<<
However, when I create a TCalendar inside a custom component then the behaviour is different. Clicking on the "middle section " OR the arrows changes the view and doesn't let me go back beyond 1/1/2000. What am I doing!
>>

That's weird. I think Tim needs to help. Please post here what caused the issue when you know the solution.

Uli

Mark,

<< However, when I create a TCalendar inside a custom component then the behaviour is different. Clicking on the "middle section " OR the arrows changes the view and doesn't let me go back beyond 1/1/2000. What am I doing! >>

Please send me an example project that demonstrates what you're seeing, and I'll take a look.  I suspect that the event dispatching isn't working correctly in your custom component.

Tim Young
Elevate Software
www.elevatesoft.com

Mark,

Just a follow-up on this for everyone reading:

The issue is a bug in the TCalendarSelectButton interface.  The select button (at the top, in the middle) is set up to just center itself in the middle of the month-year container, but that’s a problem if the month-year container is equal-to-or-smaller-than the select button because it causes the select button to overlap the back/forward buttons, thus exhibiting the issue that you saw.

I’ll have a fix for this in 2.06 B3, which is going out today.

Tim Young
Elevate Software
www.elevatesoft.com