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How can I identify a kind of field from my access table?

Posted on 2007-03-30
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Last Modified: 2013-11-23
Hello Guys,

I have a system to update access database, I make a backup from my rows in a file and after updating the
access dabase I restore my rows. Some tables I have a autonumber  field, I don't use them, but I have a problem with my procedure because it tries to recored the number in this field. How could I identify if my field is a autonumber field, so I could skip this field in my while. Take a look at my code:
    Qry.Close;
    Qry.Sql.Clear;
    Qry.Sql.Add('SELECT * FROM ' + Tabela);
    Qry.Open;
    Qrestore.LoadFromFile(MyFile);

     While Not Qrestore.Eof do
      Begin
          Qry.Append;
          For I := 0 to Pred(Qrestore.FieldCount) do
          Begin
            Qry.FieldByName(Qrestore.Fields.Fields[I].FieldName).AsString := Qrestore.Fields.Fields[I].AsString
          End;
          Qry.Post;
          Application.ProcessMessages;
          Gauge1.Progress := Gauge1.Progress + 1;
          Qrestore.Next;
        End;
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Question by:hidrau
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2 Comments
 
LVL 17

Accepted Solution

by:
mokule earned 2000 total points
ID: 18826743
Try this

if not (Qry.FieldByName(Qrestore.Fields.Fields[I].FieldName) is TAutoIncField) then
      Qry.FieldByName(Qrestore.Fields.Fields[I].FieldName).AsString := Qrestore.Fields.Fields[I].AsString
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LVL 1

Author Comment

by:hidrau
ID: 18827313
thanks very much
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