[Opensource] multi-valued fields towards multiple select boxes

[Lirian Ostrovica]

Hi all,

Expreso provides for automatically generating a HTML FORM FIELD, that would
correspond to a DBObject FIELD, and be used to update the field value.
A typical example is the generation of HTML forms for Registration Objects.

I need that one field of my registration information be a multiple choice
MenuBox.
In DBObject terms this would mean that I need a multi-valued field, whose value
be A SET of some of those valid values.
DBObject multi-valued fields go fine with html MenuBoxes that allow only a
single choice (multiple=false), but how about the multiple choices ?
So my question is :
1 - Does Expresso have any support for this kind of field. (I looked a bit
through the source code and could not find any clue).
2 - If not, has anyone used any work around to this.

The same discussion is valid in the case of  a group of checkboxes.

thank you very much for any answer to this

Lirian