TDBGrid Scrolling

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3 total messages Started by Georgi Yanchev Fri, 22 Dec 2000 11:02

#5875

Author: Georgi Yanchev
Date: Fri, 22 Dec 2000 11:02

10 lines
1175 bytes

Hi,

     My name is Georgi Yanchev. I created a class derived from TDataSet the
problem is that when it's used with DBGrid the scroll bar doesn't respond
accurately to the position of the current record.

    Is there a solution.

                                                         Thank you in
advance: Georgi Yanchev

Re: TDBGrid Scrolling

#5881

Author: Mark Cashman
Date: Wed, 27 Dec 2000 23:03

15 lines
1411 bytes

Hi, Georgi!

Unfortunately, probably not. Most client / server databases don't return
the record count needed to produce a properly scaled scrollbar.

I believe this only works as you desire when using Paradox as the DBMS.

------
Mark Cashman (TeamB - C++ Builder), creator of The Temporal Doorway at
http://www.temporaldoorway.com
- Original digital art, writing, music and more -
C++ Builder / JBuilder Tips and The C++ Builder Programmer's Webring
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Re: TDBGrid Scrolling

#5892

Author: Georgi Yanchev
Date: Wed, 03 Jan 2001 08:00

30 lines
2057 bytes

Hi Mark,
    Thank you for your responce, but maybe you didn't understand what I
meant. I created a class derived from TDataset in fact I overloaded the pure
virtual methods of TDataset to use a betrive database which gives me some
approximation for the current record the problem is that I don't know if I
should overload some virtual methods to let the DBGrid know current
position. Just like TTable lets this to TDBGrid.

                                    Thank you in advance: Georgi


"Mark Cashman" <mcashman@temporaldoorway.com> wrote in message
news:3A4A7555.2BC6A73E@temporaldoorway.com...
> Hi, Georgi!
>
> Unfortunately, probably not. Most client / server databases don't return
> the record count needed to produce a properly scaled scrollbar.
>
> I believe this only works as you desire when using Paradox as the DBMS.
>
> ------
> Mark Cashman (TeamB - C++ Builder), creator of The Temporal Doorway at
> http://www.temporaldoorway.com
> - Original digital art, writing, music and more -
> C++ Builder / JBuilder Tips and The C++ Builder Programmer's Webring
> (Join us!)
> http://www.temporaldoorway.com/programming/index.htm
> ------
>
>

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