irregular program termination while ttable operation

Board index Database Programming

irregular program termination while ttable operation

by ca20.. » Sun, 16 Mar 1997 04:00:00

What may cause a complete irregular termination of an application while opening a ttable in a try..except block ??

Does anybody have any experiences like that ???

Thanks

Top

1. Filtering a ttable : operation not applicable....

Question:

Using D4 and Paradox tables <BDE alias on server>.... when trying open
and filter a table programatically the following exception is generated:
ERRCAT_INVALIDCONTEXT, ERRCODE_NA : <42,10756> "Operation Not
Applicable"

I use this same method on tables in the same "database" in the same app
with no problems....

Offending Code;

With ProductionTable Do
Try
Filter := '';
Filtered := false;
Close;
TableName := 'Transaction_Production.db';
Open;
Filter := chr(39) + 'Project=' + DCS_Form.Current_Project
+ chr(39);
Filtered := True;
Except
On E: EDBEngineError Do
MessageDlg('Error:'+#13+E.Message+#13+
'Category: ' +
IntToStr(E.Errors[0].Category) + #13 +
'Error : ' +
IntToStr(E.Errors[0].ErrorCode),
mtError, [mbOk], 0);
End;