dbWebGrid master detail app

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3 total messages Started by Vagelis Mon, 14 Nov 2005 13:28

#223

Author: Vagelis
Date: Mon, 14 Nov 2005 13:28

17 lines
1932 bytes

I use the OnClick event of the master dbWebNavigator to add rows to both my
master and detail tables.I also update my dataset making sure that the rows
I added have the proper key and foreign key values respectively. It seems to
work fine because after I have clicked the "+" button of the master
dbWebNavigator , the page is loaded and I can see the master row with the
proper key value and the detail table contains only 1 row (the one I added)
with the proper key and foreign key values rendered. Since my
dbwebdatasource has been set to "autorefresh := true" I assume that the
update has been made correctly.

But after I click any button of the master dbWebNavigator again, a "Foreign
key values cannot be null" error occurs. After I close the application and
reopen it, I can see the new rows added and everything works fine
(Navigation Updating etc).What am I doing wrong? Since the database is
actually updated with the proper values why do I get an error?

Thanks in advance.

Re: dbWebGrid master detail app

#224

Author: Orion
Date: Tue, 15 Nov 2005 20:51

35 lines
2472 bytes

Hello
I also have exactly same error  I have found the error in the other web
controls as Dbwebtextbox  I delete it and used Dbwebmemo and problem were
fixed that it made me lost three weeks.
I assume that check all other web controls even rearrange them. All this
time I have thought that fault should lie in the xsd schema files what
organizes the master / detail relotion ship
Good luck

"Vagelis" <vagelis@4m.gr> wrote in message
news:43788d3a@newsgroups.borland.com...
> I use the OnClick event of the master dbWebNavigator to add rows to both
my
> master and detail tables.I also update my dataset making sure that the
rows
> I added have the proper key and foreign key values respectively. It seems
to
> work fine because after I have clicked the "+" button of the master
> dbWebNavigator , the page is loaded and I can see the master row with the
> proper key value and the detail table contains only 1 row (the one I
added)
> with the proper key and foreign key values rendered. Since my
> dbwebdatasource has been set to "autorefresh := true" I assume that the
> update has been made correctly.
>
> But after I click any button of the master dbWebNavigator again, a
"Foreign
> key values cannot be null" error occurs. After I close the application and
> reopen it, I can see the new rows added and everything works fine
> (Navigation Updating etc).What am I doing wrong? Since the database is
> actually updated with the proper values why do I get an error?
>
> Thanks in advance.
>
>

Re: dbWebGrid master detail app

#228

Author: Vagelis
Date: Thu, 17 Nov 2005 12:13

45 lines
2774 bytes

Thanks a lot.If I find out anything I'll let the group know.


"Orion" <info@eyhost.net> wrote in message
news:437a4a1b$1@newsgroups.borland.com...
> Hello
> I also have exactly same error  I have found the error in the other web
> controls as Dbwebtextbox  I delete it and used Dbwebmemo and problem were
> fixed that it made me lost three weeks.
> I assume that check all other web controls even rearrange them. All this
> time I have thought that fault should lie in the xsd schema files what
> organizes the master / detail relotion ship
> Good luck
>
> "Vagelis" <vagelis@4m.gr> wrote in message
> news:43788d3a@newsgroups.borland.com...
> > I use the OnClick event of the master dbWebNavigator to add rows to both
> my
> > master and detail tables.I also update my dataset making sure that the
> rows
> > I added have the proper key and foreign key values respectively. It
seems
> to
> > work fine because after I have clicked the "+" button of the master
> > dbWebNavigator , the page is loaded and I can see the master row with
the
> > proper key value and the detail table contains only 1 row (the one I
> added)
> > with the proper key and foreign key values rendered. Since my
> > dbwebdatasource has been set to "autorefresh := true" I assume that the
> > update has been made correctly.
> >
> > But after I click any button of the master dbWebNavigator again, a
> "Foreign
> > key values cannot be null" error occurs. After I close the application
and
> > reopen it, I can see the new rows added and everything works fine
> > (Navigation Updating etc).What am I doing wrong? Since the database is
> > actually updated with the proper values why do I get an error?
> >
> > Thanks in advance.
> >
> >
>
>

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