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BCB: Best way to make a Schedule/Agenda (Trigger events)?

Hi Experts,

I'm not the best programmer in the world, but I'm learning.


At the moment I am designing an Personal Assistant API. (Borland Builder 6)

Now I want to implement a Schedule/Agenda in it.


Of course there are several ways to trigger an event like a Birthday or a Appointment etc.

Now I want to know what will be the best way to do this?

-Read everything from 1 large ('Database') file every minute?
-Make a 'trigger-file' (or array)(that is checked every min.) and only read from the 'Database' when triggered?
-..?

And how should you handle recurring events? (adding en deleting)

Does anybody have/know an example/a tutorial or maybe some useful code(with explanation)/links?


Thx in advance, very appreciated!

Best regards, Roland(BE).
0
Roland1980
Asked:
Roland1980
1 Solution
 
George TokasCommented:
Hello there,
This is what I propose:
Use a TDateTimePicker from the Win32 tab. That is for choose the date.
Implement an Hour setter ( i.e. 2 Edit boxes associated with up/down controls). Those are to set the time.
use a button to add the date and time do trigger the event and store the data in a TList or something.
Add a TTimer to tick every minute and check if the date and time is reached to fire your event.
Check for that like this:
 TDateTime   EventDateTime,NowDateTime;
 //Load the EventDateTime from your list
 NowDateTime = Now();
 if(EventDateTime >= NowDateTime)
  {
       //Fire Event here and don't forget to erase the event from the list when finnished.
  }

Your "database" will be your list.
BCB have lots of components and methods you can use.

Hope it is helpfull
regards,
gtokas.
0
 
Roland1980Author Commented:
Hi gtokas,

That did help me on my way.

But what about when the 'database' gets big?
Then every minute the whole 'database' has to be read.

So, in your example, I can create a file, load it in a TList or something and check it every minute.

And how should I handle recurring events? (adding en deleting)

Roland(BE).
0
 
moduloCommented:
PAQed, with points refunded (205)

modulo
Community Support Moderator
0

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