Selected values in multiselect field

[tedwards <te...@civica.com.au>]

Hi people,
I have a situation where I can display a list of options in a list box 
with the data for the list being supplied from an XSP.
eg:
        <fd:multivaluefield id="roles">       
            <fd:label>Edit the roles assigned to the group:</fd:label>
            <fd:datatype base="long"/>              
            <fd:selection-list src="cocoon:/resources/getRoleList.xsp" 
dynamic="true"/>
        </fd:multivaluefield>

I then supply a list of *already* selected items by passing in an array 
to the form widget:

    var roleArray = Array();
    for(var i=0; i < roleList.length; i++){   
        roleArray[i] = new java.lang.Long(roleVal);
    }
    //Assign this array to the role drop down list
    model.roles = roleArray;   

The widget 'roles' already has the list populated by the xsp.
The previously selected values come from the array, and some magic takes 
place behind the scenes where the intersection of both lists results in 
the listitem being set to 'selected'.
I've tried to replicate this using a list supplied by flow-jxpath but I 
can't seem to get it right.
Has anyone got a process in place where you can display a bunch of 
selected items in a multi-select field without resorting to XSP?

Thanks for your time,

Tony


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