[Seaside] Drag and drop between two select's?

Lukas Renggli renggli at gmail.com
Thu Oct 11 07:14:58 UTC 2007

> * I want to be able to drag and drop items boths sides of two <select>
> lists, and if possible, both to be sorted.

I don't think that can possibly work. Select lists are form elements
that some famous browsers even render as native widgets. Absolute
positioning of <option> elements as it is required by the JavaScript
drag-and-drop code will hardly ever work in a cross browser compatible

I suggest that you use an #unorderedList for the drag-and-drop and
apply some decent CSS styles to make it look like a select-list. I
guess it should be fairly easy to make it match the look and
functionality of a select-list.

> * I've seen examples using simple xhtml lists (#unorderedList), but not
> using xhtml <select> with <option>'s as items. AFAIK, the difference is
> using a list you're in control of the rendering of an item (see
> #renderInventoryOn: or #renderListItems: On: ) but using a select, how do I
> specify the #passenger: for each <option>?

Exactly the same way you manually render an #unorderedList. Both tags
(<ul> and <select>) essentially support the same protocol with #list:,
#selected:, #callback:, etc. Elements that you specify using #list:
are added automatically, but you always have the possibility to do
your own thing. For details on how to make the callbacks work have a
look at WASelectTag>>#renderListItem:labelled:


Lukas Renggli

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