While trying to export dataset data to XML, I use this for ftGUID fields:

        FNode :=
Foutputdoc.CreateTextNode(Utf8decode(GUIDToString(TGuid(EF.Field.Value))));

This works on Windows 32 and shows a hex representation of the GUID, like {00000000-0000-0000-C000-000000000046}

On Linux x64, I get: "Illegal type conversion: "Variant" to "TGuid""

I then tried something like:
        FNode :=
Foutputdoc.CreateTextNode(Utf8decode(EF.Field.DisplayText));
However, this just output the GUID as a number (e.g. 42)

1. Is the conversion error I got due to the use of a 64 bit compiler? How can I fix it? (e.g. use EF.Field.AsLargeint - but that has 64 bits, not the the 128 bits present in a GUID)

2. Is the behaviour of .DisplayText correct for ftGUID variables - shouldn't it use GUIDToString to output the hex value?

Thanks,
Reinier

TGuidField stores guid in the string format (GuidToString). EF.Field.AsString should give you the correct string value.

Ludo

Ludo Brands wrote

TGuidField stores guid in the string format (GuidToString). EF.Field.AsString should give you the correct string value. Ludo

Thanks, Ludo.

I think I was using 'll have a further look; maybe I'm putting in rubbish; I'll probably have to assign the value to the field with something like GUIDToString...

Thanks,
Reinier