Thanks. This has helped. I had
[code]
with frmDM.qryGeneral, frmWizard do
begin
try
[some code]
with SQL do
begin
Clear;
Add('SELECT MAX(ID) FROM ' + sliSQL[0]);
end;
Open;
if Fields[0].AsInteger >= 1 then
sliSQL[1] := Fields[0].AsString
else
sliSQL[1] := '1';
Close; // obviously this was the culprit!
[some more code]
except;
Exit;
end;
end;
end;[/code]
-----Original Message-----
From: [email protected] [mailto:[EMAIL PROTECTED] On
Behalf Of Peter Luijer
Sent: 20 October 2005 19:35
To: [email protected]
Subject: RE: [delphi-en] mysterious form behaviour
Very stange indeed, I've never seen that before in my applications.
You haven't used any "With XXX Do" code anywhere, did you? that's
always the thing I check first when something unexpectedly happens...
Consider the following:
[code]
With TStringList.Create Do // Just as an example class
Try
// Do some stuff
Finally // I made an error here: it should've been Free, NOT Close
Close; // A TStringlist doesn't have a Close method, so the form's
End; // Close-method is called instead!
[/code]
or
[code]
With TStringList.Create, MyForm Do
Try
// Do some stuff
Finally // In this case MyForm should have been set first, because
Free; // now MyForm will be freed here, NOT TStringList!
End;
[/code]
Greetz,
Peter.
> -----Original Message-----
> From: [email protected]
> [mailto:[EMAIL PROTECTED] On Behalf Of Brigitte Spatz
> Sent: Thursday, October 20, 2005 5:54 PM
> To: [email protected]
> Subject: [delphi-en] mysterious form behaviour
>
>
> I have a form that is created at runtime. It contains a page control
> with four pages, one of which is a selection (radio group) where the
> user selects which of the other three pages to display. The selection
> page is displayed every time one of the other three has been shown and
> the user clicks the Continue button. There's also a Cancel button. Now
> for some completely mysterious reason the form closes when the
> selection page is displayed after one specific page has been displayed
> but not after the other two have been displayed. There's nothing in
> the code that would call Close or CancelButtonClick (which contains
> Close, but I've put a breakpoint in there and as expected the method
> wasn't executed), so I haven't got the faintest idea why on earth the
> form closes at this specific instance. The selection page's OnShow
> code is still exectued (I've put a ShowMessage in there).
>
> Has anybody ever heard of anything like this?
>
> TIA.
>
> Brigitte
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