On Sun, 8 Oct 2017, Graeme Geldenhuys via Lazarus wrote:
Hi,
Playing around with TMemDataset, I dropped it on a form, then clicked
"..." button of the FileName property in the Object Inspector. The file
dialog shows that I can select ANY file, so I selected a PNG file and
set Active = True. ;-) NO surprise, that didn't work as expected.
Incorrect data stream.
Clearly the TMemDataset expects a specific file format, so why doesn't
the File Open dialog list the file type and file extension that is expected.
Because there is no designated extension.
Michael.
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