When I first replied I didn't realize you also wanted to stop user
over-ride...which may or may not be a good idea. But I've done something
like this in the past where I test to ensure only the filetype set in the
filters is chosen:
If Openfiledlg.Execute then
Begin
If uppercase(JustExtensionL(OpenFiledlg.Filename)) <> 'TXT' then
Begin
ShowMessage('Only Text Files may be opened!');
Abort;
End
Else
Begin
Memo.loadFromfile(OpenFiledlg.Filename);
End;
End;
from Robert Meek dba Tangentals Design CCopyright 2006
Proud to be a moderator of "The Delphi Lists" at elists.org
"When I examine myself and my methods of thought, I come to the conclusion
that the gift of Fantasy has meant more to me then my talent for absorbing
positive knowledge!"
Albert Einstein
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Eddie Shipman
Sent: Saturday, August 05, 2006 10:30 AM
To: Borland's Delphi Discussion List
Subject: RE: How to limit user to "filter" file extensions
Best bet is to write your own FileOpenDialog and filter the files when the
FileName of *.* is selected. The standard Opendialog is a wrapper for the
Windows Common Control and cannot be extended to do this because there are
no notifcation messages sent when the user enters anything in the FileName
edit area.
> Wayne,
> If they type (e.g.) *.* in the file name box, they get to see all files
> and can then select anything.
> I need to support a few (completely different) file types which are
> processed in different ways, but I do not want to allow the user to pick
> some rubbish instead.
> Ken
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