Are MDI forms still being used or are they fairly redundant these days.
What is the easiest way to make sure that your whole app only gets one icon
in the taskbar and when you minimise second and third etc forms that the
whole application minimises?
Cheers,
Matt.
I'm new to ADO and have a quick question.
When I open an ADOQuery and navigate through the result set till eof is true
I cannot close the ADOQuery - it returns the error:
"Either BOF or EOF is True, or the current record has been deleted.
Requested operation requires a current record"
If not
I'm about to start a project with multilanguage support.
I presume that there is somenone on the list who will be doing this already.
I am interested in their thoughts.
Is the Delphi language handling comprehensive?
Is it preferable to roll your own conversion methods?
What rules must be
Hi all.
Last week 1/2 I have been writting a mail server for work.
Its al working fine etc, but I have observed something that puzzles me.
If I goto the task manager, then to the processes tab, I can locat my exe in the list.
It runs, when open at roughly 4500K, which is fine.(mainly due to me
Stephen
Is this using MDAC 2.6 'cause I think its a known bug
(there is a fix out for it) or you could go back to 2.5
Neven
- Original Message -
From: Stephen Bertram [EMAIL PROTECTED]
To: Multiple recipients of list delphi [EMAIL PROTECTED]
Sent: Thursday, 11 January 2001 09:56
AFAIK its a windows thing - windows minimizes its working set when you
minimize the app, 'cos you are not interacting with it, so it doesn't have
to care about things like back buffers, keyboard interaction etc. JBuilder
and Delphi are the same. On an initial boot with about 15 files open, its
AFAIK the memory usage in the tack/process manager
is a (extremely) vague guideline and not that close
to real memory usage. Everything I have used to check
real memory usage has always reported wildly different
amounts to what the windows task manager has reported.
Nic Wise wrote:
AFAIK its a
Nic wrote:
AFAIK its a windows thing - windows minimizes its working set when
you minimize the app, 'cos you are not interacting with it, so it
doesn't have
Not purely a Windows things. It's underdocumented and I don't
recall the "why" details, but a Delphi-related "fixer" unit was
Do you use this Peter?
TrimMem infomation removed but acknowledged
Thanks for the other reply as well. I might put it into the bug list
anyway and see what happens...
---
New Zealand Delphi Users group - Delphi
Jed wrote:
Do you use this Peter?
TrimMem infomation removed but acknowledged
Lots at first, but no longer need to in most cases as the same logic
was incorporated into WebHub's initialisation handling, so all our
W/H projects, at least, are covered.
cheers,
peter
please ignore
---
New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED]
Website: http://www.delphi.org.nz
To UnSub, send email to: [EMAIL PROTECTED]
with body of "unsubscribe delphi"
Stephen
Last time i lloked it was an 'interim' fix but now its official
http://www.borland.com/devsupport/delphi/mdac26.html
Neven
- Original Message -
From: Stephen Bertram [EMAIL PROTECTED]
To: Multiple recipients of list delphi [EMAIL PROTECTED]
Sent: Thursday, 11 January 2001
I need a bulletproof routine to create unique integer IDs for inserting rows
into multiple tables in a MSSQL 7 database.
The catches are that I want the ID's to be unique in the database, not just
each table, and the generator must be available to stored procedures.
Also the generator needs to
We are about to start a small EDI project which will involve passing around
XML documents. Initially our end of the bargain is mainly producing XML but
eventually we will probably be receiving (and hence parsing) it as well. We
would like to do this in an official manner (ie stick to standards on
use the NewID() function
IE:
Create table fred (Globally_Unique_Id uniqueidentifier default NewID() not
null)
will give you a GUID that is unique across everything.
The NewID() function will return a GUID and it will never return the smae
one again.
I need a bulletproof routine to create
The NewID() function will return a GUID and it will never return the smae
one again.
... or not for a couple of quadrillion years anyway!
:-)
David Brennan.
DB Solutions Ltd.
---
New Zealand Delphi Users group -
[Reply]
Your requirement needs to have a process that is not available in most databases. You
need some logic to not only give you a
sequential number, but to also remember "roll backed" ID's and issue those before
generating new ID's.
This usually requires the creation of a pool of available
Stephen
Code your own 'generator' as a stored proc using a UniqueIdentifier (GUID)
datatype
and the NEWID() function
Neven
- Original Message -
From: Stephen Bertram [EMAIL PROTECTED]
To: Multiple recipients of list delphi [EMAIL PROTECTED]
Sent: Thursday, 11 January 2001 15:31
I need a bulletproof routine to create unique integer IDs for
inserting rows into multiple tables in a MSSQL 7 database.
If you are happy to use 2 integers to uniquely identify such a row, then you
could use the ID of the table in sysobjects as well as an identity column in
the table itself.
The discussion so far has brought up 2 issues for me -
Why not use GUIDs
Size
Difficulty in manual SQL manipulation
Lack of a directly mapable datatype in Delphi
Unavailability in some databases - we interface to Ingres
Why use integers?
Habit
The suggestion that Gary has put forward is exactly what I was thinking
of,
but I still don't see how to "remember" rolled back ID's.
do you really need to? does 1 2 3 6 7 8 9 10 14 16 17 make a difference, as
long as they are all in order whats it for?
N
The problem is :
Process 1 generates 11
Process 2 generates 12
Process 3 generates 13
Process 1 issues a rollback - ID 11 is now unused
Process 4 generates 11 - based on rolledback seed value.
Process 5 generates 12 !! Duplicate
Process 6 generates 13 !! Duplicate
Or am I missing something
but I would be more tempted to add a seperate timestamp or
datetime column containing the time the row was inserted.
Whoops. Upon reflection I don't think a timestamp column would add any more
information as to the order the rows were added than the original identity
column already provides.
Stephen
I assume that one of the advantages of NewID() is that it is fast (or should
be)
So you could use NewID() to generate the ID and then just use the
top 4 bytes (these are sequential) in your stored proc
(in SQL2000 can a user defined procedure be called as a default?)
ie Create Table test
Re
The problem is :
Process 1 generates 11
Process 2 generates 12
Process 3 generates 13
Process 1 issues a rollback - ID 11 is now unused
Process 4 generates 11 - based on rolledback seed value.
Process 5 generates 12 !! Duplicate
Process 6 generates 13 !! Duplicate
more like
Process 1 generates 11
Process 2 generates 12
Process 3 generates 13
Process 1 issues a rollback - ID 11 is now unused
Process 4 generates 11 - based on rolledback seed value.
Process 5 generates 12 !! Duplicate
Process 6 generates 13 !! Duplicate
Or am I missing something here? I can't
[Reply]
Stephen,
I think that from what you say, gaps are not a problem, it is uniqueness that you are
looking for. Am I right?
Assuming I am (for once this year), then all you need to do is to generate the unqiue
ID outside the transaction that will use it.
eg
Process 1: Start
(Interbase is so easy in this sense because generators are
produced outside any transactions).
So are SQL Server identity columns, and I've got to say they're even easier.
ducks for cover
Paul Ritchie.
---
New
Paul
The two probs with "identity columns" are
a/ They are only unique to a connection and
b/ They are only held for the last action (ie if your insert fires a trigger
and the trigger insert and idenity)
you are stuffed
PS
Did I note that Gary had posted this discussion to DUG tut tut
Please just ignore
this
Neven,
Well you learn something new every day eh?
a/ They are only unique to a connection and
I didn't think so. Aren't they generated from within the database? I use
them in stored procedures and I don't see how they could be only unique to a
connection. Can you point me to documentation
Who
knows, there is probably a test group out there somewhere that you could test
your mail server on.
-Original Message-From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Jeremy
CoulterSent: Thursday, 11 January 2001 18:04To: Multiple
recipients of list
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