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Luigi Puleio
Guest
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 Posted: Thu Feb 23, 2006 9:03 am Post subject: Using TDateTime component |
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Hello everyone...
I'm using a TDateTime component in a project as dkDate...I've figured I
can select date from dropdown calendar. But if, for example, I
increment/decrement day by pressing up/down key it is true it should
increment automatically also month and year when I'm at end/first of
month/year?
If not, do you have a suggest about making incrementing/decrementing
real date when using UP/DOWN button?
You see, I've tried to implement OnKeyDown/OnKeyUp event but it doesn't
work really good because it fires an event internally which
increments/decrements too the single value....
Thanks a lot in advance.
Ciao,
Luigi |
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SF
Guest
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| Posted: Thu Feb 23, 2006 1:03 pm Post subject: Re: Using TDateTime component |
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| Quote: | You see, I've tried to implement OnKeyDown/OnKeyUp event but
it doesn't work really good because it fires an event
internally which increments/decrements too the single
value....
|
That would be easy to prevent. Just assign Key = 0 if you
already handled that key. For example:
void __fastcall TForm1::DateTimePicker1KeyDown(TObject *Sender,
WORD &Key,
TShiftState Shift)
{
if (Key == VK_UP)
{
/* your code to increment date */
Key = 0;
}
else if (Key == VK_DOWN)
{
/* your code to decrement date */
Key = 0;
}
}
HTH,
Stefano. |
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Luigi Puleio
Guest
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| Posted: Thu Feb 23, 2006 3:03 pm Post subject: Re: Using TDateTime component |
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Thanks you a lot! It works!
I should have figured about Key = 0 that makes keys to not be processed
till a new operation.
See you and thanks again!
Ciao, Luigi
SF wrote:
| Quote: | You see, I've tried to implement OnKeyDown/OnKeyUp event but
it doesn't work really good because it fires an event
internally which increments/decrements too the single
value....
That would be easy to prevent. Just assign Key = 0 if you
already handled that key. For example:
void __fastcall TForm1::DateTimePicker1KeyDown(TObject *Sender,
WORD &Key,
TShiftState Shift)
{
if (Key == VK_UP)
{
/* your code to increment date */
Key = 0;
}
else if (Key == VK_DOWN)
{
/* your code to decrement date */
Key = 0;
}
}
HTH,
Stefano.
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