TDBF
lazarus / 16-Databases

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mizarra · 2005-05-17 13:29

Hi, I try to  use TDBF component, but when I run my project I got this
message "PROJECT MYPROJECT RAISED EXCEPTION CLASS 'EXTERNAL:
SIGSEGV'". How can I fix this, Thank

P.D.: Sorry about my English

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matthijs · 2005-05-17 14:21

It is a bit hard to say from the information you give. When do you get
this error? Try stepping through your sources to find out when this
happens.

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Anonymous · 2005-05-17 19:29

I get this error when I try to read or write a field from my dbf file.
I use MyDbfField.Value and MyDbfField is type TStringField, just like
TTable component in Delphi, what is wrong? The documentation about
TDBF component is very poor. When I can find information about this
package?

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Marc · 2005-05-18 14:54

How (and where) did you declare and assign MyDBFied

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Anonymous · 2005-05-18 20:15

I declare MyDbFField in a DataModule and I assign MyDBFField in
another Unit in the poject that use the unit DataModule. Is it wrong?

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matthijs · 2005-05-19 16:14

Could you post some relevant pieces of code, so we could have a look?
If we continue like this we have to keep guessing and that usually is
no good at all.

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Anonymous · 2005-05-19 21:23

Okey in the DataModule I declare:
...
    TSinInfo: TDbf;
    TSinInfoEMPRESA: TStringField;
    TSinInfoRUTA: TStringField;
...
where TSIninfo is my table and TSinInfoEMPRESA,TSinInfoRUTA  are the
fields in my table. When I open the table in another unit, I do:
...
   ruta :=ExtractFilePath(ParamStr(0));
   DM.TSInInfo.FilepathFull := ruta;
   DM.TSinInfo.Tablename := 'SinInfo.dbf';
   DM.TSinInfo.Exclusive := True;
   DM.TSInInfo.Open;
....

It is Ok, but the the project crash when I do
...
    DM.TSInInfo.Insert;
    DM.TSInInfoEmpresa.Value := ENombre.Text;
...
Just in the line DM.TSInInfoEmpresa.Value := ENombre.Text; I get the
error message:  "PROJECT MYPROJECT RAISED EXCEPTION CLASS 'EXTERNAL:
SIGSEGV'".  I hope that somebody can help me. Thank



P.D.: Sorry about my english

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Anonymous · 2005-06-09 20:01

I knok what's wrong, I should use

TDbf1.FieldByName('MyField').AsString := 'Whatever';

Instead Of

DM.TSInInfoEmpresa.Value