Bug #560 not reproducible, please ask for code!
Posted: 26.10.2022, 10:49
I have no SF account so can not post a comment on the bug.
https://sourceforge.net/p/zeoslib/tickets/560/
1, blob.Clear seems to work as intended.
is showing that the blob field is indeed empty. Something will be wrong with the code of the user.
2, Setting text for Blob, see comment in TBlobField.SetAsString:
// Use TWideMemoField for blobs associated with Unicode string data.
Don't use ftBlob for TDBMemo, use ftMemo or ftWideMemo instead.
https://sourceforge.net/p/zeoslib/tickets/560/
1, blob.Clear seems to work as intended.
Code: Select all
ZMemTable1.FieldDefs.Add('ID', ftLargeint, 0, True);
ZMemTable1.FieldDefs.Add('Name', ftString, 255, True);
ZMemTable1.FieldDefs.Add('Data', ftBlob);
ZMemTable1.Open;
ZMemTable1.Append;
ZMemTable1.FieldByName('ID').AsLargeInt := 1;
ZMemTable1.FieldByName('Name').AsString := 'Hello';
ZMemTable1.FieldByName('Data').AsBytes := TEncoding.Unicode.GetPreamble; // Just put something in
ZMemTable1.Post;
ZMemTable1.Edit;
ZMemTable1.FieldByName('Data').Clear;
ZMemTable1.Post;
If ZMemTable1.FieldByName('Data').IsNull Then ShowMessage('Blob is null')
ELse ShowMessage('Blob is not null');2, Setting text for Blob, see comment in TBlobField.SetAsString:
// Use TWideMemoField for blobs associated with Unicode string data.
Don't use ftBlob for TDBMemo, use ftMemo or ftWideMemo instead.
