Error() is not raised after Remove()

[ZStaniek]

If I go directly to SQL database and execute DELETE statement

DELETE FROM [dbo].[List]
WHERE ListID = '25'

I am getting an error message

Msg 547, Level 16, State 0, Line 4
The DELETE statement conflicted with the REFERENCE constraint "FK_ListMember_List". The conflict occurred in database "AxysImp", table "dbo.ListMember", column 'ListId'.

Which is a proper behavior since there is a foreign key constraint on ListMember table and ListMember table contains rows with ListId=25.

When I try to delete the same record from the SharePoint gallery using the following ON SELECT command:

Remove(
'[dbo].[List]',
ListGallery.Selected
);
Notify(Text(IsEmpty(Errors('[dbo].[List]'))))

the record does not get deleted, but the Errors collection remains empty, which means i am not notified about the error.

Please help.

[eka24]

Is the remove botton inside the Gallery or Outside the Gallery. If Inside the Gallery, try:

Remove([dbo].[List],LookUp([dbo].[List],ID = ThisItem.ID))

------------

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[ZStaniek]

Yes, my button is within the gallery.

I have tried two versions:

Remove('[dbo].[List]',LookUp('[dbo].[List]',ListID = ThisItem.ListID));Notify(Text(IsEmpty(Errors('[dbo].[List]',LookUp('[dbo].[List]',ListID = ThisItem.ListID)))))

and

Remove('[dbo].[List]',LookUp('[dbo].[List]',ListID = ThisItem.ListID));Notify(Text(IsEmpty(Errors('[dbo].[List]'))))

Record does not get deleted (rightly so), but the Notify result is still true, which means no error was detected.

[WarrenBelz · Accepted solution]

@ZStaniek ,

Try this

RemoveIf(
   '[dbo].[List]',
   ListID = ThisItem.ListID
   )
);
Notify(
   Text(
      IsEmpty(
         Errors(
            '[dbo].[List]',
            LookUp(
               '[dbo].[List]',
               ListID = ThisItem.ListID
            )
         )
      )
   )
)

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[ZStaniek]

Hello Warren,

I give you a credit for solving this. I came to the same conclusion yesterday and was about to post my solution, which is essentially the same. 

While there is a solution to the problem, the question remains, why Remove() does not handle errors properly and must be replaced with RemoveIf(). 

My solution:

RemoveIf(
'[dbo].[List]',
ListID = ThisItem.ListID
);
If(
!IsEmpty(
Errors(
'[dbo].[List]',
LookUp(
'[dbo].[List]',
ListID = ThisItem.ListID
)
)
),
Notify(
"Member items present, remove first",
NotificationType.Error
)
)

[WarrenBelz]

Thanks @ZStaniek ,

The post is also about other people finding it.

I always use RemoveIf as it always works - I guess I don't look for reasons why other things don't too much unless I need to use them.