Re: invalid class typecast


Hi again,
I just figured out something I wonder if it is ok ?
It didn't raise any exception.

var
nf : TNumericField;
i64 : Int64;
begin
with qry1 do
begin
Close;
nf := qry2.FieldByName('REFNO') as TNumericField;
i64 := nf.Value;
Parameters.ParamByName('REFNO').Value := i64;
Open;
end;
end;

Thanks again
yc

"yc" <yc@xxxxx> wrote:
>
>Hi,
>
>I'am trying to use TLargeIntField, it is giving me a headache.
>
>I've two Access tables tbl1 and tbl2 (qry1 and qry2).
>Using TLargeIntField field type as follows, I get an invalid class typecast exception.
>
>var
> li : TLargeIntField;
>begin
> with qry1 do
> begin
> Close;
> li := qry2.FieldByName('REFNO') as TLargeIntField; //EXCEPTIO is here
> Parameters.ParamByName('REFNO').Value := li.Value;
> Open;
> end;
>end;
>
>Any idea ?
>
>Thanks in advance
>yc

.

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